These guys did a great job designing this power transformer for me. Works and sounds great in the 35-ish watt guitar amps I'm building. Small enough to fit nicely in a compact combo cab. I'm very happy.
Great construction, works perfect for my custom version of the Dynaco ST-35
I build HiFi tube amps and these work well for more than just Guitar amp applications! They hold their own against much higher priced transformers.
Very well made transformer.
I've used quite a few EDCOR transformers, always top notch!
![](http://edcorusa.com/cdn/shop/files/Matching_small_4edd1e9f-4934-49db-869d-91fd4db34d48.jpg?v=1628544045&width=600)
Audio Matching Transformers
Microphone and line level matching transformers, combiners, and splitters.![](http://edcorusa.com/cdn/shop/files/Speaker_Distribution_2_6db37c9f-013f-43b0-8670-37a5eb98070c.jpg?v=1629406724&width=1200)
Audio Distribution Transformers
Audio distribution for amplifier and speaker systems.![](http://edcorusa.com/cdn/shop/files/Collection-Couplers-1320x700.jpg?v=1697637145&width=1320)
Stereo to Mono Coupling
Converts a stereo signal to a mono signal.![](http://edcorusa.com/cdn/shop/files/Tea_Tray_Amps_By_Douglas_De_Young2.jpg?v=1629749317&width=750)
Classic Tube Audio Transformers
Single Ended, Push-Pull, and interstage.![Power Transformers](http://edcorusa.com/cdn/shop/collections/Classic_Power_Transformers.jpg?v=1698774165&width=1970)
Power Transformers
Tube amplifier, solid state equipment, design, testing and development.![Parts](http://edcorusa.com/cdn/shop/collections/Vray1.png?v=1648559655&width=1920)
Parts
Transformer parts and components.![Amps/Kits](http://edcorusa.com/cdn/shop/collections/Slider-Jonokuchi-2160x1080.jpg?v=1698781538&width=2160)
Amps/Kits
Tube amplifier replacement transformers and kit transformers.![](http://edcorusa.com/cdn/shop/files/Ike_Chun_-_River_Table_-_2E26_PP_Stereo_Amp.jpg?v=1697731534&width=2160)
![](http://edcorusa.com/cdn/shop/files/Ike_Chun_-_Cedar_Slab_with_Bonsai_-_300B_SET.jpg?v=1697731564&width=2160)
![](http://edcorusa.com/cdn/shop/files/Ike_Chun_-_Harry_Potter_Wooden_Case_-_807_SE_MK-II.jpg?v=1697731583&width=2160)
![](http://edcorusa.com/cdn/shop/files/Ike_Chun_Valentine_-_807_PP_Mono_Block.jpg?v=1697731595&width=2160)
![](http://edcorusa.com/cdn/shop/files/Ike_Chun_-_The_Guitar_Body_-_807_SE_MK-II.jpg?v=1697731635&width=2160)
Multi-part blog series that will cover the basics of transformer design
Designing a Transformer
Hi-Tek Gadgeteer
![The Making of an EDCOR Transformer.](http://edcorusa.com/cdn/shop/articles/Fusion_360.jpg?v=1666642832&width=1600)
The Making of an EDCOR Transformer.
![What is Frequency Response?](http://edcorusa.com/cdn/shop/articles/Signwave.jpg?v=1633986470&width=1600)
What is Frequency Response?
![The Voltage Dilemma](http://edcorusa.com/cdn/shop/articles/The_Voltage_Dilemma_2.jpg?v=1629323108&width=1600)
The Voltage Dilemma
![](http://edcorusa.com/cdn/shop/files/USA_Flag_3.jpg?v=1697734024&width=2800)
Proudly designed and built in
<i>'MERICA</i>
Located in the southwest of the United States, EDCOR strives to purchase materials and parts from US manufacturers and try to support local businesses whenever possible.