8k output transformer. Sep 11, 2019 · You've got high output impedance in many cases, a gapped transformer with DC flowing through it, and no distortion cancellation. Ideal for 6V6 or EL84 push-pull amplifiers. 6k deluxe reverb OT or oversized Princeton OT at around 8k (I’m looking for a little more bandwidth, not necessarily more volume or headroom although I wired up a Champ for my son recently using Hammond's new 1760CP output transformer, which is their 1760C with a paper bobbin. In fact I built my Vox AC-10 using a Apr 15, 2021 · The transformer is simply going to reflect the output impedance to the tubes at the primary based upon it's turns ratio. Apr 8, 2016 · I'm using audio grade 29M6 laminations and bobbin wound construction. Secondary (Output)The output impedance is designed for speakers. Ready for shipment in 56 days Shipping time: 57 - 58 workdays 10W, push-pull tube output transformer for 8K Ohms to 600 Ohms. Magnet WireAll The early JTM45's used the RS "De-Luxe" output transformer which had 6. A mate of mine very This upgraded transformer features both 4 ohm and 8 ohm taps on the secondary. CXPP100-1. ), how does primary impedance on output transformers affect output level and tone? I’m considering putting an oversized output transformer in my Princeton reverb build. 3 days ago · K-12G revisited: output transformer upgrade Page 1 of 2 [ 19 posts ] Go to page 1, 2 Next Page 1 of 2 [ 19 posts ] Go to page 1, 2 Next. May 19, 2021 · Hammond transformers: Power transformer 372JX, output transformers 1650HA (Digikey UK) Hammond Aluminium Chassis 1444-30, 432 x 254 x 51mm (e-bay UK). Mar 10, 2024 · I've been reading a lot about primary impedance choices for a 5F1 Champ OT, with candidates running from 5K (supplied in a number of kits) to 7 or 8K (supplied in other kits) up to 17K (as was seen in the reverse-engineered "tiny" 5F1 OT built by Classictone -- RIP). GXSE10-5K - 10W, 5K Ohms single ended guitar tube output transformer. Find many great new & used options and get the best deals for Sansui H10-8 8K P-P Output Transformer Set of 2 Used Push-Pull 6V6/45 at the best online prices at eBay! Free shipping for many products! Feb 11, 2014 · Transformers are always specifically designed to work for some tube (the trick being to figure out which one!) Assuming they actually are tube output transformers, it might be easier to select some commonly-used tubes, then consult those tubes data sheets? They normally give typical operating conditions and load. com FREE DELIVERY possible on eligible purchases Feb 10, 2012 · Edcor Electronics updated website shows two new output transformers, CXPP25-MS-8K and CXPP25-MS-8K/23%. 0 (Ubuntu) 301 Moved Permanently nginx/1. Great for new builds, upgrades or replacement. Magnet WireAll All Mojotone Transformers are made in the USA. Oct 1, 2020 · What effect does having a higher primary impedance have on the tone of an amp? From my research I have found that output power will be lowered. Please note that the transformers are not a drop through replacement. 6K, and used KT66's at around 440-460V. Maybe larger than original transformer. Anyone got any tips or advice? I'd like to Microphone, Line Input and Output, Split or General purpose transformers. Schumacher output transformer for Fender Champ. CXPP10-15K - 10W, 15K Ohms push-pull tube output transformer. Magnet WireAll units are wound with the finest virgin copper Mar 17, 2010 · Hi, I am looking at the various Edcor output transformers. As I usually do, I scoped out the primary leads (~400 ohms Mar 17, 2025 · I am researching the practicality of constructing a pair of Melvin Sprinkle "Maestro" amplifiers and was curious to know if Mike had in his files the detailed data/drawing for the Peerless S-268-Q 8K output transformers used in this design, and, if so, if this information could be made available. It sounds amazing, btw On AliExpress, we present a wide range of high-quality audio output transformer 8k solutions tailored to fulfill your unique audio needs, ensuring superior sound quality that can elevate your listening experience. They were touted by the Ebay seller as transformers compatible with EL84/6BQ5 outputs, which would place them at 8K optimum plate-plate impedance. I have two 6L6GC output tubes, I will probably grid-bas them and I'd like to get around 30W output. Our Part# OEM Part# Type Rating APD-8039H HTS-7751-8K Output 45W -8K to 4/8/16 Ohm Alternates: None Reference#: 45W Output Transformer 784-103 40-18039 '65 JTM45, '65,66 JTM45 MKII Apr 8, 2016 · I'm using audio grade 29M6 laminations and bobbin wound construction. Screen/Grid TapThis unit has a 40% screen/grid tap. Poor/lightweight bass performance is not Nov 28, 2019 · All else being equal (and I guess it never is. Get your DMM out, calibrate to see what it reads with the probes shorted; then with a 4 Ohm load resistor; then measure the loudspeaker terminals. This makes it well suited for other type of push-pull tube amplifier. 414 = 353VDC unloaded, with 200mA load current capacity. It uses a high-quality steel core with about a 20% larger core than most champ output transformers giving it better frequency response. Marshall, by design or accident, wired them as 6. If using the amp with a full range driver or if the crossover is simple (such as a supertweeter with a single cap) then use a 5 or 6K transformer. Shop with confidence. GXSE10-8K - 10W, 8K Ohms single ended guitar tube output transformer. Push Pull 8K:4/8R 15W EndBells Vertical Ultralinear Output Transformers (Pair) Core material: high quality grain oriented silicon steel M6 (19Kilogauss) Winding Wire: Double coated Grade 2 enamelled copper wire Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength. All units are wound with the finest virgin copper magnet wire. Any reasons for This transformer may be used in any push-pull design where an anode to anode impedance is 8000 Ohms. That gapped transformer with DC flowing through it is a big part of the "Neve sound", which generally isn't considered to be low-distortion. The usual clones have only 4 and 8 ohm taps, but I need a 16 and Edcor offers that. Jun 26, 2010 · I've been doing some reading in old threads, and is often the case now I'm more confused than before I started. 7% positive Output Transformers Single Ended Power Amp Output ( Orient Core Hi-B ) 25W, push-pull tube output transformer for 8K Ohms to 4, 8 and 16 Ohms. Items that are faulty beyond the description given on our auction site, please contact me. High Quality, Reliability, and Excellence are what make our transformers the best around. 3v tap, which I reckon is more then enough to build a small amp. It's 2:1 sectionalization scheme ensure clarity 15W 8K: 0-4-8Ω push-pull output transformer, 6v6 EL84 6P1 6P14 6V6 vacuum tube amplifier transformer Color: 8K of 0-4-8 Customer Reviews Specifications Description Store More to love Output transformer upgrade for the Fender® part numbers 125A35A, 125A3A, and 022905 as used in the: Bronco (AA764, AB764, Blackface, Silverface) Champ (Tweed, 5C1 Oct 10, 2021 · There seems to be a lack of reasonable priced 10K/8K push-pull 30W+ output transformers. (for instance 2x EL84) Primary impedance : 8000 ohm Secondary impedance : 0 - 4 - 8 - 16 ohm Power rating : 25W Frequency range -3dB (1mW) : 4Hz - 60kHz Full Power bandwidht starting at : 50Hz (25W) Download datasheet Optionally this transformer can be potted in an aluminum shell with a nice blach textured finish (dimensions : 106 x 55mm) Jul 6, 2025 · Transformer, Output, 5W, 5k & 8k Primary Options, Upgrade for Fender® Champ Amplified Parts (47405) 99. I'm looking at doing a 15W version of a Matchless DC30 (only 2 x EL84's), and I have an old 5. The new factory has done a great job on production for the past year. something like a 20w 6. Material used & design specs. It's a 2x1 interleaved winding with two input impedances and three output impedances. Physically, parts were designed to look similar to original factory units (where possible). 30WSEOT $129. In many posts, speaker Hello all, Been looking through my vox schematics AC-15/AC-10 and they are listed as 8k for the primary for the OT. But I am somewhat confused as to which to choose. Any help or opinions? Thanks Sep 8, 2019 · I have 3 Hammond 1760H Output transformers with a 6600 impedance. Sep 19, 2017 · I would pick the 10k instead of the 8k output transformer. There are plenty of cheap and good valves like GU-29, GU-50 and the likes that enjoy high anode voltages. May 19, 2021 · 1) If you use the 500VCT 200mA transformer as full-wave rectified with its center tap connected to ground you'll get 250VAC (half the secondary) * 1. Apr 19, 2010 · Re: Brownface Deluxe by Structo » Wed Apr 29, 2015 3:06 pm I think what he said is, 8K or 6. 6K, 8K and 9K primary windings. When the production numbers increased Marshall switched to Drake output transformers. 4K transformer. 0 (Ubuntu) Single Ended 8K Output Transformer 10W ultralinear for guitar amplifiers. When searching for the perfect transformer to optimize your audio setup, the 10k single output transformer, transformer 6p1, hifi audio output transformer, transformer and output are May 23, 2019 · So, this required buying the proper fitting transformers. Please use caution when referencing these wiring diagrams. The CXPP series was designed as a high quality output transformers push-pull tube amplifiers. If you put 16k on the output, the tube will see a *higher impedance. The first el34 amps had jtm45 faceplates November of 1965 to mid 1967 jtm 45 used the 784-103 output Jul 2, 2013 · Friend I use a Edcor output transformer in my 2E25 proyotype and this transformer sound really nice !!! Very recommended !!! Edcor model GXSE10-8-8k Pair Luxman Lux Luxkit OY-36-8K Output Transformer Transformers Pp Cars Description Condition : USED Message 100% Guaranteed 100% Authentic my goal is to make your experience with me as stress free as possible. The chassis is reinforced with an angular aluminium strip to be able to handle the transformers' weight. I build a champ AA764 amp. You usually use the plate resistance to figure out what an appropriate OT would be. It's surface mounts to your chassis by a an "X-mount" with four screws. Mojo transformers have undergone various changes over the years and these wiring diagrams are meant to aid in the purchasing Tube amplifier output transformers All OPTs are built in our dual coil single C-core style and can be ordered with a choice of core air-gap for Push-Pull or Single-Ended applications. Find great deals on eBay for 8k Push-Pull Output Transformers. I've looked through the forums, books, internet, etc. Primary Multi section winding, for reduced leakage inductance. The EL84 datasheet examples say 8k primary. 6% positive Apr 8, 2016 · Heyboer Transformers® Premium guitar amplifier power transformers, output transformers and chokes. 8K Ohms impedance source. Magnet WireAll Apr 20, 2025 · Luxman CSZ-36 8K Constant Inductance Output Transformer Pair F/S From Japan gyro store (1070) 96. 8k output tapped. TECHNICAL FEATURES: Primary Impedance: 8K (Anode to Anode) Ultralinear Jan 7, 2007 · A transformer doesn't have any set impedance, just the turns ratio. The input is designed for a 8K Ohms impedance source. OT20PP-HF-8K-USA PAIR- Hi Fi version of the OT20PP-8K with oversized lam as a pair. 00 Tue, Jun 10, 09:51 PM See original listing 301 Moved Permanently nginx/1. The schematic calls for 8k and I need 8 ohm output, with a 4 ohm output being nice to have but not strictly needed. product & prices Single ended output transformers with 4/8/16 Ohm secondary UL taps, CFB as an option on your request at extra cost all models can be ordered with nano-X core material Dec 13, 2023 · A while ago, I was sorting out a transformer for a build and had a few output transformers from Marshall (Origins 20 & 50) and old Hammonds that where not labeled, so I wanted to get a grip on transformer function beyond just needing the right one. Also the output transformer is a single ended 10w, 8k primary/16 ohm secondary ratio. Leakage inductance 16mH Bandwidth Wide bandwidth, 20-30KHz. Dynaco St35 /SCA-35 Output Transformer Upgrade (Pair). They were (obviously) designed to be used with the EL34, which has a load resistance of 6500 ohms in a P-P DesignThe CXPP series was designed as a high quality output transformers push-pull tube amplifiers. Solid bass performance required to 20Hz. Input-8000 or 6600 Ohm. So, my question is: Is it better to get an 8K to 16 ohm transformer or would I be better off with a 5K to 8 ohm transformer? GXSE15-5K - 15W, 5K Ohms single ended guitar tube output transformer. This makes it well suited for other type of single ended tube amplifiers. Primary (Input)The input is designed for a 3. Apr 8, 2016 · OT20PP Standard version (unshielded)- Made In MexicoThis is a new 15 to 25VA Push-Pull model OT20PP Output transformer for tube guitar circuit applications (50Hz to 10KHz) using power tube pairs such In stock! Shipping time: 1 - 2 workdays 10W, single ended tube output transformer for 8K Ohms to 6 Ohms. Nov 13, 2020 · I know, I know! Another output transformer thread. Secondary (Output)The outp May 19, 2021 · What should I build with a 8K 10W PP transformer with available 40% UL taps? the simpler the better. 0 ohm secondary taps. Apr 10, 2023 · I want to build a simple push pull amplifier with some rather nice Sansui 8k output transformers I picked up a few days ago. About this listing Carl's Custom Amps uses these in their Classic Tweed Champ and other custom 5 Watt amps. 8 turn @ 9. Pair of 18 VA Push-Pull HiFi Output transformers for tube audio circuit applications (30Hz to 20KHz) using power tube pairs such as EL84 or 6V6. 1 pair 100W 120W 150w Z11 transformer tube amplifier KT150 KT120、KT88 Push Pull Output Transformers 5K 8K 12K,Push Pull Output Transformers, Sold AT6123 output transformer for push-pull tube amplifiers 8k to 4,8,16 15W US $168. Oct 22, 2020 · Hi, I recently found some edcor transformer locally, the power transformer is a 275-0-275v (200ma) with a 5v and a 6. CXPP10-10K - 10W, 10K Ohms push-pull tube output transformer. Now, if one of you more literate tube guys can explain what Sep 20, 2023 · Product Description Power Transformers Luge 6V6, 6P6P, 6P3P, 6P14, 6P1, 6P15 and other electronic tubes with 8K push-pull 10W output transformer. The latter seems like a perfect OPT for a ST-35 Dynaco clone. In so doing, I ended up with an OT that has both the 5K PI that I'm used to, as well as an 8K PI option, which I believe it similar to what the OE amp used. Secondary (Output)The output impedance is designed for Great audio output transformer for 5W single ended Champ**, Tweed Champ**, Tweed Princeton**, Vibro-Champ**, Harvard**, Bronco** type amplifiers. This transformer is designed for wide bandwidth and the result is a rather clean and transparent sound. It has a 17k to 4ohm ratio as opposed to the normal 5k to 4 or 8k to 4. com FREE DELIVERY possible on eligible purchases Heyboer Transformers® Premium guitar amplifier power transformers, output transformers and chokes. 5 ohm and 3. Nov 26, 2023 · I'm looking for recommendations for ouput transformers for an EL84 push-pull amplifier. What could be an acceptable, readily available replacement transformer with the same specs (if I don't worry about quality just want to start tinkering)? Find great deals on eBay for 8k Output Transformers. RCA says 10k for 6V6 pp, but my two options for 8 ohms are a 33. and haven't come across a "this is how to select an output transformer" instruction. Keep in mind that the wattage a tube can handle is determined by the voltage and current applied to it just like ohms law states. Get Fast Delivery and Discover More from CE Distribution at Opentip. All Mojotone Transformers are made in the USA. It's great upgrade for just about any 5W single ended tube amp 7K Primary with 4 and 8 ohm speaker outs. Shop CE Distribution P-TGO-001 Transformer - Output, 5W, 5k & 8k Primary Options, Upgrade for Fender® Champ at Wholesale Price. Apr 3, 2024 · I have a set of potted output transformers, purportedly from a Sansui amplifier/receiver. Schumacher is one of the original Fender transformer suppliers. Features 45x45mm mounting, EI66 core, Z11 silicon steel, oxygen-free… I'm using audio grade 29M6 laminations and bobbin wound construction. I am considering the XSE or GSXE series. I have some power transformers from the Sony tape players that should do OK and a pair of chassis that I’m hacking up at the moment. The primary has two impedance options for lower voltage (5K) and higher voltage (8k) models. 8k, is one better? Is being UT HIFI Push-Pull output transformer, 8K/4-8ohm, 15W. Can I put (2) GXSE15-8K output transformers literally stacked on top of each other on opposite sides of a chassis skin without creating flux interference? Said another way, I would like to mount OT's to the same spot on the chassis in a DesignThe GXPP series was designed originally for guitar tube amplifiers. Apr 8, 2016 · Part Number: 1608A Output transformer, push-pull, 10W , primary 8,000 ct, 100 ma. These work well with the 6V6 'Deluxe' style amps I currently build but it appears the 6BQ5's prefer something around the 8K area. The output impedance is designed for speakers. Couple this compression with the voltage sag caused by the undersized power transformer and the Deluxe Reverb sounds a little spongy and more "tubey" than the other AB763 amps. Secondary (Output)The outp DesignThe GXPP series was designed originally for guitar tube amplifiers. Which one should I use and why would they want to put two of them if it’s made for a champ as a replacement? Feb 27, 2007 · Use a 8k primary output transformer with kt66 tubes 784-128 output transformer is for el34 in the jtm 45/50 or jtm50 (3. (-1dB) Secondary Output impedance - Multitap 4,8,and 16 May 28, 2017 · I have a great sounding and looking little rebuilt Magnavox 8802 that really is limited by the output transformers, I also have an old pair of 30w PP transformers laying around, so I think to myself project time. Taking that Edcor, for example. EL84's, 6BQ5's, 7189's, 7189A's and Russian substitutes can be used. Output-4/8/16 Ohm outputs. Magnet WireAll units are wound with the finest virgin copper Nov 9, 2010 · I have a simple question that puzzled me and after doing some research I am still not sure. Feb 24, 2024 · Buy 8K 20W Push-Pull Output Transformer no Super Linear tap Frequency Response 25HZ -26KHZ Suitable for Tube EL84 6P14: Power Transformers - Amazon. I have a dozen of the Russian 6v6 Oct 29, 2016 · As far as the impedance of the output transformers, I'd use the 8K impedance if the speaker being used has a passive crossover, especially if the crossover is fairly complex. 1k or 40 turn @ 12. Neon sign transformer burns more lichtenberg tree details, easily control burning than microwave oven transformer due to high voltage and lower amperage. S. 8000 Ohms Anode to anode 40% UL taps Inductance Inductance approx 50H at 1000Hz. For SE transformers, the primary inductance variation due to signal level is less than 7%. The 18 Watt group elected to have the transformer tweaked to provide for 16 ohm, 8 ohm, and 4 ohm secondary taps. Mojo transformers have undergone various changes over the years and these wiring diagrams are meant to aid in the purchasing Wide bandwidth, push pull ultralinear Output transformers,60W (pair) Designed for EL34, KT88,6550 (or others with similar impedance) push-pull amplifiers Maximum output power : 60W Frequency Response: 10Hz-48Khz -3dB Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance, low parasitic capacitance and Determining Output Transformer Impedance When replacing the audio output transformer on a radio, the replacement should match the impedance of the original as close as possible. Lead wire lengths: 400mm Color code of lead wires White :Anode 1 Buy OP664409 8K 20W Push-Pull Output Transformer for EL84 6P14 Tube Amplifier Audio DIY: Low-Voltage Transformers - Amazon. Proudly manufactured in the U. Magnet WireAll units are wound with the finest virgin copper Sep 9, 2023 · 6P1 6P6 6P14 6P15 EL84 Tube Amplifier Push-Pull Output Transformer, 15W 8K or 10K with or Without Super Linear tap (Color : 10K Version) Nov 20, 2018 · The component list calls for a 10W single-ended EDCOR GXSE10-5K (5K ohm primary, 8 ohm secondary) output transformer with a 40% tap, but those are made to order, and I am impatient. Secondary (Output)The output impedance is designed for The AB763 Deluxe Reverb's slightly undersized output transformer creates output volume compression at high volume levels which adds to touch sensitivity and sustain. 18. There are plenty for 1020W, but slim pickings (other than in China) above that. 7K - 100W, 1. Apr 8, 2016 · The US supplier of the OT20PP doubled prices at the end of 2019. 5k to 4k primary) 784-103 output transformer is for the kt66 amps. It is also true that mismatching output impedance does affect tone. If you put an pure 8 ohm load on the outputs, the tube will "see" 5k. Feb 16, 2019 · Question: I am assembling a stereo tube amplifier. I have a push-pull amp schematic that calls for an output transformer with 4K ohm primary and an 8 ohm output. The transformers are built in a bigger core to ensure improved overall performance. The transformers are suitable for upgrading dynaco ST35 /SCA-35 amplifier or build a project based on ST35 topology. DesignMathematically designed to produce exact plate and screen voltages. My investigations of 15W-ish EL84 powered amps show; * Marshall 18W amps use 8. were kept as close as possible to the original part to preserve the stock "tone". 7K Ohms push-pull tube output transformer. 6K to 8K ohm output transformers and can be run in triode, pentode or ultralinear mode. Screen/Grid TapThis unit has a 40% screen/grid tap depending on model. If the wrong transformer is used, the results can be low output and loss of tone quality. This is a "hi-fi" rated transformer and can be pushed above the rated wattage for guitar use -- for comparison, the "45 watt" 5F6A Tweed Bassman transformer is the same weight as this "25 watt" Edcor. CXSE5-5K - 5W, 5K Ohms single ended tube output transformer. This ver The original transformer had an 8K ohm primary with 15 ohm, 7. 6K primary resistance output transformer for 6V6GT power tubes. (8k primary) The 128 makes it a 67 jtm50 or 45/50. Mar 25, 2019 · Product Description YaeCCC 8KV 30mA Neon Light Transformer Power Supply Electronic Neon Supply UL Listed Exposed grounding output, light board ground mounting easy. Replacements for Fender Amps Designed for drop in replacement of original units. 100% customer satisfaction guaranteed. 4k primaries, and * Classic tone and Hammond replacement 'vintage' spec DesignThe GXSE series was designed originally for guitar tube amplifiers. Design The CXPP series was designed as a high quality output transformers push-pull tube amplifiers. It's surface mounts on an X-Mount above a chassis with (4) screws. Primary (Input)The input is designed for a 8K Ohms impedance source. 95 ClassicTone # 40-18115, Fender Champ Style, 5W, Single Ended, Output Transformer, 8K Ohm Primary to 4 Ohm Secondary 40-18115 40-18113 ClassicTone # 40-18113, Fender Style, 100W, 2K to 4 / 8 Ohm, Output Transformer with Vintage Style Raised & Offset Mounting OP664409 8K 20W Push-Pull Output Transformer for EL84 6P14 Tube Amplifier Audio DIY The transformers are suitable for upgrading dynaco ST70 amplifier or build a project based on ST70 topology. DesignThe CXPP series was designed as a high quality output transformers push-pull tube amplifiers. CXSE25-5K - 25W, 5K Ohms single ended tube output transformer. TECHNICAL FEATURES: Primary Impedance: 8K (Anode to Anode) Secondary Impedance: 4/8 Ω Ultralinear taps : 50% Primary Inductance Lp=133H @17Vrms/50hz Leakage inductance : 6mH Primary Dc resistance: 186 Ohm Max Dc current per tube :120mA (Anode to CT) Maximum output power 10W Frequency Response: 8hz-54Khz -3bB at 1W output power. This audio output transformer is a 25W, push-pull tube output transformer for 8K Ohms input impedance with 23% grid/screen tap to 4, 8, and 16 Ohms. I have a pair of Dynaco A470 OPTs with an output impedance of 4300 ohms. Matchless did this on purpose for some of their amps. both Power and Output. Find the right transformer for your project: Sowter, Lundahl Transformers, Edcor T 10pcs EE-14 Audio Transformer High Efficiency Audio Isolation Transformers 1300 : 8 Ohm for Voltage Amplification and Power Output 36 $699 FREE delivery Thu, Aug 7 on $35 of items shipped by Amazon Apr 8, 2016 · OT12PP+ standard version - 8K/10K: 4/8/16 OhmThis is a new 18VA Push-Pull model OT12PP+ Standard version Push Pull Output transformer for tube guitar amp circuit applications (50Hz to 15KHz). Will the frequency response change? More even harmonics? Mainly asking to investigate the odd 40-18110 classictone champ transformer. These transformers are precision gapped to adjust for unbalanced DC current. , secondary 4-8-16 Dec 26, 2021 · Hey group, I am still having some trouble understanding how to select an output transformer for my build project. I can't find an output transformer anywhere with those specs. Toroidal outputtransformer for push-pull amplifiers. Most of our OPTs can be configured for different primary and secondary impedances. The output impedance depends on model. Roughly 300 ohm primary dc resistance. Screen/Grid TapThis unit has a 23% screen/grid tap depending on model. The amp runs with a B+ of 320 to 340 volts using 6. Thus, whatever you attach the primary leads to will set the secondary impedance based on the turns ratio. I think the original Champs had an OT with an 8K PI and used a 4 ohm secondary with a 4 ohm 8" speaker. This unit has a 40% screen/grid tap. . 100 Volt line transformers as output transformers in valve guitar amplifiers. 8k to 8ohm output transformer (calculated). The use of C-cores with well-defined air-gap results in an almost constant […] Hammond's 1608-1650 series of tube output transformers are designed for push-pull tube output circuits and are ideal for triode, Ultra-Linear pentode, pentode, and tetrode connected audio output applications. I'm using audio grade 29M6 laminations and bobbin wound construction. CXPP10-8K - 10W, 8K Ohms push-pull tube output transformer. A. I think at first running KT66's at 8K before changing the design to EL34's into 3. 0 (Ubuntu) Apr 8, 2016 · It's using audio grade 29M6 laminations and bobbin wound construction. I just don't know which load would be the better option. I realize the original transformers are rare. 0 (Ubuntu) Aug 4, 2018 · In class A you will also need a output transformer spec'ed for class A and a power transformer of a good bunch more current output then if your output stage where class AB. I finally got a hold of a decent Hammond output transformer 1760CP, but it has two primary impedances 5000 and 8000. 301 Moved Permanently nginx/1. The use of C-cores with well-defined air-gap results in an almost constant inductance throughout the whole operating voltage range. The big plus, is 4, 8, and 16 ohm taps for 16 ohm horn drivers. Our Part# OEM Part# Type Rating APD-8030H HTS-13238 Output 5W - 5K & 8K Ohm Primary to 4/8 Ohm Secondary Alternates: None Reference#: 125A35A, 125A3A, 022905 - Plus Series Vi I wired up a Champ for my son recently using Hammond's new 1760CP output transformer, which is their 1760C with a paper bobbin. This feature 8K Ohm primary impedances and 4 Ohm secondary impedances. Let's say I would like to use an Edcor instead of a Hammond, then a XSE10-8-5k should be a suitable alternative to the 125CSE, correct? The Feb 7, 2024 · Has anyone used Edcor CXPP25-MS-8k/23% transformers on their ST-35’s? The specs seem similar but I wonder about the winding integrity compared to the original Z-565’s. DesignThe GXSE series was designed originally for guitar tube amplifiers. Gapped single ended output transformers for tube amplifiers. Push-pull output transformers for tube amplifiers. 7K primary, 4 ohm secondary. Must be ordered. mkrmk wpxky hcmd fszif ach qkw ufub owwsoe rnflp kpne