Fender Output Transformer

Far more than tubes, speakers or other amp components, the transformers establish the platform for shaping your amp’s unique sound. And it's amazing. My shop rate is $50/hr and I have a $100 minimum billing for chassis shipped in for repair. Rather than waste those 8-ohm output transformers in stock from previous 6G6 production, Fender used them up on the first 6G6-A with 4-ohm speaker cabinets. Fender Frontman 15r Transformer Replacement. Fender occasionally got them wrong, as some have reported 4-ohm transformers in Showman, and vice-versa. Some folks will judge an amp by the size of the output transformer but this is matter of taste. All of the transformers tested were pint sized compared to the Electra-Prints. Output transformers for building or repairing guitar, bass, and other amplifiers. Not all distributors or resellers are alike! Many offer various other brands besides ClassicTone. A bolt-on replacement for Fender Champs, but also useful for many do-it-yourself projects and repairs on vintage amplfiers & radios. transformers works on the speakers also. They have been sitting in my studio storage for about 10 years, and I have no idea what amp they came from, or which decade they were made. 6G16 125P6A 45217 125C1A 022921. dropin replacement for most vintage Ampeg Jet & Reverborocket and some. It will now be the standard OT for the 10W Chihuahua. Special thanks to Terry Stinger (z_stingray) for the PCB layout. The speaker lineup and the output transformer were based on the Fender Super amp of the time and the circuit based on the Fender Vibrolux of the time, with no presence control and only one 12AX7 tube for the tremolo effect. More Info. At high volume the 5E3's output transformer reaches saturation which tends to compress the signal. If there is an 8 ohm output tape use it. This reduces the output transformer sag and limitation that the Princeton is known for. It came out of a 1972 Bandmaster Reverb Amp. Fender® Deluxe Reverb® Vintage Tube Amp - This amp is all original. I've had good experience replacing output transformers on a few of my older ampsbut I've also occasionally discovered that "overkill" can sometimes be detrimental to the sound. The Bandmasters, like most of the classic Fender amp models have existed for decades, and have went through several metamorphoses in their lengthy lifespan. Once saturated an output transformer can't flow any more flux or get any louder so loud notes are capped but softer notes are still amplified so there's less volume difference between loud and soft guitar notes. As with most gear. It will now be the standard OT for the 10W Chihuahua. In regards to tone and how an output transformer affects it, it’s my opinion that an output transformer does not change an amp’s character. An example of this is the H/T or B+ fuse on Marshall and other amplifiers. Some other info about the twin is that it does not have any bias adjustment it is fixed bias. and, I noticed I never saw the back side of champ chassis before. The half-primaries of the output transformer should have identical voltages on them. 40 TO 50 WATTS WITH PAIR OF 6L6GC TO 4 OHMS. Some folks will judge an amp by the size of the output transformer but this is matter of taste. while I’m working on a tweed champ 5f1 replica with 10″ speaker, I recall they say the output transformers affect the tone. All Mojotone Transformers are made in the USA. The output tranny reads 606-1-21. Output Transformer Tube Amplifier Audio Single-Ended Z11 Oxygen-Free Copper 1kg Output Transformer Tube. 5 watts at 5% at 1 KHz. Stop in the shop, call us o. The 70's Fender amps are usually pretty easy to troubleshoot. The 59 Pro has the 8 ohm Triad 45217 output and the Triad 8087 power transformer. dropin replacement for most vintage Ampeg Jet & Reverborocket and some. Transformer winding is an extension of the fitting and turning industry. Output transformer - Any way to find ohms with multimeter? I have an old tube amp and I'm not sure what the output transformer is pushing to the speaker. #125A6A 022848 4OHM TAP. More Ohm, less output and cooler transformer. 8 ohms, equivalent. A real time capsule. What is Negative Feedback? General. You can get anything from Laney to Pexi no trouble. Money doesn't always = tone. Output transformer - Any way to find ohms with multimeter? I have an old tube amp and I'm not sure what the output transformer is pushing to the speaker. Output transformers for Fender, Marshall, VOX Show 1 to 12 (of in total VOX® Output Transformer AC50CPH / AC50CP2 / AC30HH / AC30H2L / A. Next time, we’ll cover the metal panel years, including the start of the master volume series and some of the other interesting changes that occurred in the models from the time of mid 1969 through the JCM 2000 series. After all, an amplifier’s tone is the sum of all of its parts—tubes, capacitors, wiring, speakers, etc. Generally speaking the larger the output transformer the more low end and clean headroom (in the power stage) the amp will have. I set the amp up so that 3 different sets of output transformers could be tested against the Electra-Prints. In this case, the original Super Twin transformer has a P-P impedance of 1500 ohms, which is proper for six 6L6s in Fender's tapped screen design. A great upgrade for the Epiphone Valve Jr. Back in the day, the most common source of amp failure was the speaker. Equivalent to #050438. Add to Cart. I'm looking for a good source of transformer codes. 6G16 125P6A 45217 125C1A 022921. The description of this item has been automatically translated. Weber Speakers Homepage --- Loudspeakers, components, and equipment for the vintage musical instrument enthusiast. Transformer winding is an extension of the fitting and turning industry. With our attention to detail you can be assured that your restored vintage transformer will look AND sound exactly as it did. Transformer - Fender®, Output, Hot Rod Deluxe and Blues Deluxe. At high volume the 5E3's output transformer reaches saturation which tends to compress the signal. A new transformer will not change an amp’s DNA or make a Marshall sound like a Vox. Most valve-amp transformers have two windings: high voltage (HT or B+), and heater supply. There is no internal switching so only one impedance is correct. If you have any. Besides a 1962 Blonde Showman amp, this just may be the nicest bass amp that Fender has ever produced. Next time, we’ll cover the metal panel years, including the start of the master volume series and some of the other interesting changes that occurred in the models from the time of mid 1969 through the JCM 2000 series. It is time to enter the murky world of IF transformers (I can’t wait to make a “Wobbulator”) and Harry’s design looks like a good learning opportunity. I plan to build a variety of cabinets to use with it, so I want the flexibility of a multi-tap OT. If the transformer is a power transformer, watch out for connections to filament windings or solidstate rectifiers. Fender Output Transformer, 0041754000. I have a tweed deluxe set that sounds. Add to Cart (compatible to 125A1A & 041318) 25W- (6600ohm/)8. The most expensive part I installed in my amp was a replacement output transformer. Happy Shopping!. Fender Part no. In 1967 (after CBS bought Fender), Fender bought a HUGE supply of pots from CTS. This reflected signal can exceed the voltage ratings of your output tubes and cause them to arc or short out - even worse the output transformer can be damaged. Then you can measure it and fit your simulation models to actual measurements on the real transformer. Equivalent to #125A9A & #022855. OldGuitarParts. Fender used the "heavy" NFB circuit in the multi-speaker amps to compensate for their lower voltage delivered by their 2 and 4 ohm output transformer secondaries. ClassicTone # 40-18102, Fender Style, 100W, 2K to 4/8/16 Ohm, Output Transformer with Vintage Style Raised & Offset Mounting 40-18102 $110. HIWATT 100watt Power Transformer $320 HIWATT 100watt Output Transformer $300. Modulus - UK Guitar Amp Parts and Kits's items for sale in TRANSFORMERS AuctivaInternalLink. Output transformers for building or repairing guitar, bass, and other amplifiers. Bring that old guitar or amplifier back up to working condition with these vintage parts & hardware. Primary impedance 4250 ohms. They have been sitting in my studio storage for about 10 years, and I have no idea what amp they came from, or which decade they were made. (that's where the white wire is soldered that feeds the OT) On V4 I get 305 ohms. Not much to a champ pics might help. This protects primarily the output transformer from overcurrent, usually the result of an output tube short. An example of this is the H/T or B+ fuse on Marshall and other amplifiers. Back in the day, the most common source of amp failure was the speaker. Weber Speakers Homepage --- Loudspeakers, components, and equipment for the vintage musical instrument enthusiast. Transformer - Fender Original, Output, Hot Rod Deluxe. Best example is the MOSFET 100 Marshall. Amplifier and amplifier modification kits. If there is an 8 ohm output tape use it. Output transformers marked UPGRADE (below) allow for more versatility by added secondary connections that did not exist on the original units. Solid state amps do not generally use output transformers. Yes the output transformer will read very low on an Ohm meter. A great upgrade for the Epiphone Valve Jr. Both the stack and the windings will determine the performance of an output transformer. OldGuitarParts. Completed forms will be entered into a quarterly drawing for a cool Fender amp geek prize. Grand-Stack version with fatter Stack (1 inch) increases Punch und Bass! 2x 6V6GT to 4, 8 Ohms. Transformer - Fender®, Output, Hot Rod Deluxe and Blues Deluxe. That, and the extension cabinets, and the speakers that went into them. 4-ohm and 8-ohm taps will cover everything as long as I configure the cabs properly. Add to Cart (compatible to 125A1A & 041318) 25W- (6600ohm/)8. Also might be used as an output transformer for a headphone amp or impedance matching device for headphones (eg: to match newer low impedance headphones to output of tube-type ham & shortwave receivers). Fender occasionally got them wrong, as some have reported 4-ohm transformers in Showman, and vice-versa. Related Products. There are several things that are important in getting an output transformer made. The transformer has standard leads for the primary, but for the secondary, it only has six lugs, numbered 1 through 6. The amp came with a 10" Oxford with a tag # of - 023010 465420 10J4-5B and blue Fender decal on back of the magnet. Output Transformer 606-542 42nd week of 1965 - (October) Reverb Transformer 606-548 48th week of 1965 - (December) Inside chassis stamp - T110566 - indicates February of 1966 The tube chart has been scratched/torn so the date code is not readable - likely a PB - February 1966 - based on the chassis and transformers dates. Yes, the power transistors give up earlier than the transformer but if the transformer is too small right from the start you are calling for trouble. Not much to a champ pics might help. Items in Fender® Replacement Output Transformers Sort Item A-Z Item Z-A Item Name A-Z Item Name Z-A Price Low to Hi Price Hi to Low Items per page 40 80 120 50W/2 Ohm, 4 Ohm & 8 Ohm Fender® Replacement Output Transformer. Specifications Wattage : 40 Primary Impedance (Ohms): 4250 C. A good Ohm meter, and knowledge of the resistance of a good output transformer would tell if the transformer was at fault. With more than twice the power of a Showman (200 watts RMS), and 100% tube circuitry, hand wired point to point, and five band equalization the short-lived Fender Studio Bass amp is one of their most rare and little known amps. Proper output transformer design is crucial to the success of an audiophile quality amplifier. Global negative feedback refers to the "feeding back" of a small amount of signal from a later part of the circuit to an earlier part, usually from a tap on the output transformer back to the phase inverter. It just has a hum balance pot and "output tubes matching" pot on the back. Includes tips on measuring an. Far more than tubes, speakers or other amp components, the transformers establish the platform for shaping your amp's unique sound. Mercury offers Transformer Restoration Services for rare and vintage transformers that are failing or underperforming. 9k Pp Ct Modern Design And Build By Redradia For Sale Online. it’s where I start finding a vintage OT for my project. If you have any. Fender Products. mains transformer for Fender® 135W models: This 013830 mainstranformer is used for all 135 Watt Fender amps of the 1970s: Twin Reverb, Dual-Showman Reverb, Bassman 135, Quad Reverb and Vibrasonic Reverb. Back in the day, the most common source of amp failure was the speaker. Fender (Output Transformers) Part Number. The OT was designed to have a flat response down to 20Hz. Tube Guitar Amplifier - Output Transformers 1750 Series REPLACEMENT & UPGRADES Features Designed for drop in replacement of original units. Generally speaking the larger the output transformer the more low end and clean headroom (in the power stage) the amp will have. Fender Style Output Transformers. 0033 µ 470K INPUT COIL DRIVE CIRCUIT RECOVERY CIRCUIT 800. All reproduction transformer are hand wound to the exact original specifications of winding geometry, steel laminations, materials, varnishes and of course sound. In 1967 (after CBS bought Fender), Fender bought a HUGE supply of pots from CTS. That is, the higher the output power, the more current is needed. Removed the back cover and checked the 500 mA PCB Fuse, this was not blown, checked the voltage at the input of power transformer at 240v but no output from the secondary at all, after removing the transformer and testing the primary winding it was reading open circuit. The 70's Fender amps are usually pretty easy to troubleshoot. This reduces the output transformer sag and limitation that the Princeton is known for. To understand the role of the stack, a trip back to Leo Fender's world of the 1950s is in order. Output Transformer JavaScript seems to be disabled in your browser. Fender (Output Transformers) Part Number. However, on the very first examples of this amp made in December ’61 and the first half of January 1962, Fender didn’t change one very important item – the output transformer. Some other info about the twin is that it does not have any bias adjustment it is fixed bias. Another example: a speaker code of 220820, in a Tweed era Fender amp (1950's - early 1960's), would be Jensen (220), manufactured in 1958 (8) in the 20th week (20) VINTAGE FENDER TRANSFORMER USAGE CHART. Equivalent to #050438. As used in the Gibson GA5 Les Paul JR. Output Transformers for Fender, Marshall and Vox Guitar Amps plus many more. The two probes are applied to the center tap and either of the ends of the output transformer's primary. I have two vintage Fender transformers, one is power the other is output. However, on the very first examples of this amp made in December '61 and the first half of January 1962, Fender didn't change one very important item - the output transformer. With a bigger transformer you will experience more attack and a bigger sound due to more efficient power transformation from your tubes. Output transformers for valve amps 18W push pull output transformer. The original (6G16 circuit) Vibroverb was introduced in February 1963. Bigger output transformer - More power. Fender literally wrote the book on electric basses, laying the foundation for musical innovation and evolution. With our attention to detail you can be assured that your restored vintage transformer will look AND sound exactly as it did. Specifications Wattage : 40 Primary Impedance (Ohms): 4250 C. Output of 1961 Fender Champ for 1952 Fender Telecaster Input The output of the Fender Champ from a guitar input can be seen below and was taken so that later. it’s where I start finding a vintage OT for my project. Four 12AX7/7025s, four 6L6s. Bigger output transformer. If it's an output transformer, make sure the speaker is not connected and there is no minimum load resistor on the output jack or diode from plate to ground, as is found in some amps. This reflected signal can exceed the voltage ratings of your output tubes and cause them to arc or short out - even worse the output transformer can be damaged. Output Taps: 4/8 ohm 2(W) x 1 5/8"(H) x 1 3/4"(D X Mount with 2-7/16" 2-Hole Mounting centers. REPAIR SHOP Repair of Fender Frontman 15G Fault - The amplifier was totally dead. It is a tweed Pro clone, 5e5a. By the end of the "tweed era" of the '50s, Fender had moved to Schumacher transformers for many of its amps. Output Transformer 17A090,NSC318,NSC041318T,NSC04131B-T,NSC04131BT,NCSO41318T,NSC041318-T. Fender hotrod Deluxe woes!! My fender Hot Rod's volume level never went past 3. Add to Cart (compatible to 125A1A & 041318) 25W- (6600ohm/)8. Primary impedance 4250 ohms. The T8's audio transformers have flat, wide frequency response and handle high signal levels while maintaining an isolated balanced output. Good for restoring older Fender Bandmaster, Vibrolux Reverb, Pro Reverb, Tremolux and other models. Warning: Not all amplifier models of the same name use the same transformer model. Tube Guitar Amplifier - Output Transformers 1750 Series REPLACEMENT & UPGRADES Features Designed for drop in replacement of original units. Model 022848 code 606-2-13. Product information for Go Getter Sound System with Built-in Bluetooth, AIR Transmitter and Two Dual Wireless Mic Receivers GG2-XU4 manufactured by Anchor Audio, Inc. Contact Mojo Tone for in-stock Heyboer audio transformers. Features Designed for drop in replacement of original units. Output transformer - Any way to find ohms with multimeter? I have an old tube amp and I'm not sure what the output transformer is pushing to the speaker. I have a tweed deluxe set that sounds. All reproduction transformer are hand wound to the exact original specifications of winding geometry, steel laminations, materials, varnishes and of course sound. With it, you can custom hot-rod your Fender® FUSE™-compatible amp and connect with a worldwide community of musicians. This is a new 15 to 25 VA Push-Pull model OT20PP Output transformer for tube guitar circuit applications (50Hz to 10KHz) using power tube pairs such as EL84 or 6V6. Choose from brands like Hammond designed for push-pull audio tube output circuits & ultra-linear operation. Fender (Output Transformers) Model Names Similar to (MFG Part No. The 59 Pro has the 8 ohm Triad 45217 output and the Triad 8087 power transformer. Amplifier Transformers: Magnetic Components, Inc. Designed for amps with a pair of EL84; 8k ohms primary, 8 and 16 ohm speaker outputs. Also might be used as an output transformer for a headphone amp or impedance matching device for headphones (eg: to match newer low impedance headphones to output of tube-type ham & shortwave receivers). (On a Fender, for instance, the center-tap is RED, and the two plate wires are BLUE and BROWN. RE: Tubes- Mar’ Himmerich is correct. You were in there with a soldering iron doublecheck for cold joints. The original (6G16 circuit) Vibroverb was introduced in February 1963. 0033 µ 470K INPUT COIL DRIVE CIRCUIT RECOVERY CIRCUIT 800. It is a tweed Pro clone, 5e5a. Yes the output transformer will read very low on an Ohm meter. Money doesn't always = tone. Qty: Tweed Twin High Power 5F8-A. The stock output transformer is small and cheap. Both the stack and the windings will determine the performance of an output transformer. The idea is to test for shorts that occur as a result of arcing between the leads and the winding wires in the transformer. Not much to a champ pics might help. More Info. were kept as close as possible to the original to preserve the stock "tone". Please visit my Tube Amplifier Forum Here's the place you can go to ask tube amplifier questions. At high volume the 5E3's output transformer reaches saturation which tends to compress the signal. TO11S Heyboer output transformer rated 4,000 ohms primary to 4 or 8 ohms secondary. Made in USA. or something is hitting the secondary through the feeback loop. it’s where I start finding a vintage OT for my project. This actually requires opening the amp up and looking at the transformer. I am building an amp using circuit boards and original output transformer from a 1994 Fender Blues Deville. BANDMASTER, PRO, 6G16 VIBROVERB, 6G4A SUPER, ETC. So the output transformer ought to work for my amp. The 17" reverb tank provides a deep echoey sound. And then what about those early 90's Drake output transformers in the first JCM900 amps? Are they as well built as the 70's and 80's versions? Worse? I have an SL-X 50W amp that has a laydown Drake output transformer. Depending on which output transformer. Since impedance varies as the square of the number of turns, the primary impedance for a power tube screen is 18. A tranny in a nominal bass amp may give very realistic figures, but a tiny tranny from a small practice combo may. 0033 µ 470K INPUT COIL DRIVE CIRCUIT RECOVERY CIRCUIT 800. The two probes are applied to the center tap and either of the ends of the output transformer's primary. Contact us for delivery time. Mercury Magnetics Vibrolux, Vibroverb, Tremolux, Pro Reverb, Bandmaster Output Transformer. Rather than waste those 8-ohm output transformers in stock from previous 6G6 production, Fender used them up on the first 6G6-A with 4-ohm speaker cabinets. With 6V6 or 6L6 output tubes running at a 420V plate voltage, the Hammonator puts out approximately 18 watts of audio power. More Ohm, less output and cooler transformer. Power supplies (power transformer & filter capacitors) were designed for the needs of the output tubes. Marshall Output transformers: Built to Vintage specs with exact interleave ratios and materials. Output transformer workers great- was removed from a working amp. Choose from brands like Hammond designed for push-pull audio tube output circuits & ultra-linear operation. - $2499 : Fender® Student Single 10 Steel - Manufactured by Sho-Bud. Demo to assist you with testing/troubleshooting output transformers. Beware of these substitutes! These may be substandard products that are not true replacements, use inferior construction methods and materials and lack the great features and pricing of our ClassicTone transformers. Dealer pricing available. This one allows 6. Testing transformer is very easy if you follow the procedure explained in this article. 6G16 125P6A 45217 125C1A 022921. ClassicTone # 40-18102, Fender Style, 100W, 2K to 4/8/16 Ohm, Output Transformer with Vintage Style Raised & Offset Mounting 40-18102 $110. The plate voltage on V4(6L6) is about 360, and the plate voltage on V5 is about 350. I suspect the output transformer may be bad and am looking for information about it. Note that this transformer offers more power than the 1628SE. Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output. Modulus - UK Guitar Amp Parts and Kits's items for sale in TRANSFORMERS AuctivaInternalLink. Good also for Showman and other amps using four 6L6 output tubes, good for 100 gracefully distorted watts into a 4 ohm load. Fender Frontman 15r Transformer Replacement. Proper output transformer design is crucial to the success of an audiophile quality amplifier. Bring that old guitar or amplifier back up to working condition with these vintage parts & hardware. Fender 0990752power. It ended up being larger than a Marshall 100W OT. The T8's audio transformers have flat, wide frequency response and handle high signal levels while maintaining an isolated balanced output. Back in the day, the most common source of amp failure was the speaker. Fender 5E3 Tweed Deluxe Output Transformer:H&H Vaso Vetro Uniflor Decorazione ´Vase´ Cm 28 Decorazione Casa, 8. As with most gear. As used in the Gibson GA5 Les Paul JR. I'm looking for a good source of transformer codes. The output transformer literally transforms, or transfers, the audio power of the amplifier onto a load (impedance) of the speaker; how efficiently it does this is one measure of quality and the modernity of technology and materials used. There are more transformers being offered now with two or three different impedance options, and for this discussion we'll use the 5E3 D-Lux for an example as I do carry some tweed Deluxe output transformers with 4/8/16 ohm output taps. This transformer fits many Fender amps. Fender ALMOST learned its lesson and gave the 300PS, the 400PS's lesser powered successor, a single output, but to save money on the output transformer, that single 300 watt output was at 8 ohms ONLY. Next time, we’ll cover the metal panel years, including the start of the master volume series and some of the other interesting changes that occurred in the models from the time of mid 1969 through the JCM 2000 series. It just has a hum balance pot and "output tubes matching" pot on the back. Removed the back cover and checked the 500 mA PCB Fuse, this was not blown, checked the voltage at the input of power transformer at 240v but no output from the secondary at all, after removing the transformer and testing the primary winding it was reading open circuit. Standard replacement for Fender (tm) reverb driver transformer, also works great with DIY projects and as a general replacement. Wound on paper bobbin. It is important to note that in the mid-powered amps (2 6L6) there was a lower current supply (Vibrolux & Tremolux) and a higher current supply (Pro, Super, Vibroverb, etc. For the best experience on our site, be sure to turn on Javascript in your browser. Remember, either the TO20 or TO20B output transformer fits perfectly and improves sound quality, especially bass perfomance. Equivalent to #050438. This transformer is a large blocky metal device mounted on the chassis of a guitar amplifier. Fender Part no. If the transformer is a power transformer, watch out for connections to filament windings or solidstate rectifiers. The Pro reverb has a smaller OT than other 6L6 BF/SF amps like Super Reverb and Vibroverb. Few people working in transformer winding companies have a knowledge of electronics or valve amps. Includes: Power Transformer, Output Transformer, & Choke. Fender installed casters on some larger amps and cabs beginning in 72. As used in the Gibson GA5 Les Paul JR. I do need to measure it and see if it is at least the same size as the standup OT's in my JCM800 50W amps, as it looks small to me. The Plus Series offers Fender* and Marshall* type amplifier transformers for general replacement, upgrades and additional features such as international voltage taps. Fender used two kinds of silver/blue grill cloth, first version, as with your amp, the blue stripe fades away to red, then brown and eventually disappears. Equivalent to #050438. anyone have a transformer list of newer fender transformers that might have these listed and their specs. Replacement reverb driver for Deluxe Reverb, Pro Reverb, Super Reverb, and Twin Reverb. Generally speaking the larger the output transformer the more low end and clean headroom (in the power stage) the amp will have. Yes, the power transistors give up earlier than the transformer but if the transformer is too small right from the start you are calling for trouble. As with most gear. Then you can measure it and fit your simulation models to actual measurements on the real transformer. Best Prices on Fender Transformers, Power Transformer, Output Transformer, Call For Assistance Fender Power Transformer, Bullet 15 DSP, 0025413000 Submitted by gpadmin on Tue, 01/05/2016 - 22:20. Discover the sound of Fender, the spirit of rock-n-roll since 1946. So the output transformer ought to work for my amp. When amp is pushed hard and close to the amp's maximum clean headroom, the OT will not be able to transfer all energy ideally from the power tubes. Fender Style Output Transformers. An example of this is the H/T or B+ fuse on Marshall and other amplifiers. Amplifier Transformers: Magnetic Components, Inc. Yes, the power transistors give up earlier than the transformer but if the transformer is too small right from the start you are calling for trouble. Without a load the DC output of the power supply would be 354V, the peak output voltage for a 250V RMS power transformer secondary. "Start" and "finish" are arbitrary terms with respect to this configuration. Another example: a speaker code of 220820, in a Tweed era Fender amp (1950's - early 1960's), would be Jensen (220), manufactured in 1958 (8) in the 20th week (20) VINTAGE FENDER TRANSFORMER USAGE CHART. I used this amp because it works very well and has excellent 5K transformers. Driving circuitry for line output transformers should have low output impedance. Modulus - UK Guitar Amp Parts and Kits's items for sale in TRANSFORMERS AuctivaInternalLink. The stock output transformer is small and cheap. This allows a clean, neutral sound with a wide variety of signal sources. There are more transformers being offered now with two or three different impedance options, and for this discussion we'll use the 5E3 D-Lux for an example as I do carry some tweed Deluxe output transformers with 4/8/16 ohm output taps. Tube Guitar Amplifier Transformers & Chokes Home > Transformer Index > Tube Guitar Amp Xfmrs & Chokes - INDEX. FENDER CHAMP STYLE 5W OUTPUT TRANSFORMER TF103-48 Single Ended Ultra-Linear 4 / 8 Ohm MADE IN USA $29. I would seriously consider multiple output transformers. It is time to enter the murky world of IF transformers (I can’t wait to make a “Wobbulator”) and Harry’s design looks like a good learning opportunity. FENDER POWER TRANSFORMER FOR BXR200, $85. And then what about those early 90's Drake output transformers in the first JCM900 amps? Are they as well built as the 70's and 80's versions? Worse? I have an SL-X 50W amp that has a laydown Drake output transformer. The reason I'm asking is that the amp (with a JA code on the tube chart) has what looks like a Fender replacement output transformer. Transformer winding is an extension of the fitting and turning industry. Home Reverb Transformer - Fender Replacement, Output, 3. I once designed a few transformers with an older transformer guru who I discovered was a musician as well. were kept as close as possible to the original part to preserve the stock "tone". There is an untapped (single impedance) output transformer, rated for the intended cabinet (or combo speaker setup). Not all distributors or resellers are alike! Many offer various other brands besides ClassicTone. Fender Hammond Fender Hammond Fender Hamond Fender Hammond Fender - Hammond Transformer Chart POWER OUTPUT CHOKE REVERB 6G15 68319 NA 125C3A 194A 125A12A 6G15 125P24A N/A 125C3A 194A 125A12A 6G14 67233 45550 125C1A 194B N/A AA763 125P34A 290FX/291FX 125A30A 125C1A 194B N/A Dual Showman AB763 125P34A 290FX/291FX 125A29A 1750W/1760W 125C1A 194B N/A. Mercury offers Transformer Restoration Services for rare and vintage transformers that are failing or underperforming. If it's an output transformer, make sure the speaker is not connected and there is no minimum load resistor on the output jack or diode from plate to ground, as is found in some amps. Western Electric - $1,750. Wiring Diagram. They’re integral to the nuances of your guitar amp’s sound. Besides a 1962 Blonde Showman amp, this just may be the nicest bass amp that Fender has ever produced. Transformer Amplifier Tube Output Audio 1kg Oxygen-Free Z11 Single-Ended Copper Copper Single-Ended Z11 Transformer Audio 1kg Amplifier Oxygen-Free Output Tube. The output transformer is the most closely related to the tone of the amplifier. Best Regards CE. My amp tech has what is probably the best sounding amp that I've ever played through; a 1961 Fender Bassman with a tube rectifier and 4 ohm output transformer.