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Audio Transformers - Roger Russell
http://www.roger-russell.com/autran.htm
ELECTROSTATIC SPEAKER TRANSFORMERS. WE DESIGN AND BUILD TRANSFORMERSFOR THE FOLLOWING TUBES: 813~845~211~300B~2A3~6C33C-B~KT-88/99. Contact Dennis "Doc"Hoyer at: PHONE. 414-774-6625. FAX. 414-774-4425. EMAIL.
dennis hoyer - Owner - Audio Transformers | LinkedIn
https://www.linkedin.com/in/dennis-hoyer-51757742
View dennis hoyer’s profile on LinkedIn, the world’s largest professional community. dennis has 1 job listed on their profile. See the complete profile on LinkedIn and discover dennis ...
Audio Classics 9B Tube Power Amp -- A Modern Day …
https://forums.stevehoffman.tv/threads/audio-classics-9b-tube-power-amp-a-modern-day-marantz-9.515768/
Yeah, Doc Hoyer has been the authority on output transformer rewind for as long as I can remember. Now, even if he is able to rewind a Marantz transformer successfully, then comes the daunting task of adjusting the feedback network to the transformer, as no two transformers were alike in this regard.
The Quest for the Ultimate
https://worldradiohistory.com/hd2/IDX-Audio/Vacuum-Tube-Valley-IDX/IDX/Vacuum-Tube-Valley-03-OCR-Page-0018.pdf
Eventually, I contacted 'Doc' Hoyer; sole proprietor of Audio Transformers, near Milwaukee, Wisconsin. The Doc is prob-ably the only man who can do the MI-200 transformer rewind. 'That will cost you a grand', he said. I packed the bad transformer up and shipped it to Wisconsin. Revival of the Fittest With the larger problems of getting
MC275 Transformers | diyAudio
https://www.diyaudio.com/community/threads/mc275-transformers.184646/
Hi Everyone, I'm looking to build an McIntosh MC275 and I know its quite a project, but I'm up to the challenge. I'm looking for the transformers. I talked to Doc Hoyer who can build them for me, but for $2000 which is a bit out of my range. Does anyone know where I can find some or if there...
Audio Asylum Thread Printer
https://audioasylum.com/cgi/t.mpl?f=tubediy&m=238162
Doc Hoyer is probably one of the biggest authoritarians on transformer technology in the country.I don't think McIntosh would have him winding their project transformers along with the Mi350 and 3500 transformers if he was a schmuck.I'm going to give the .32hy a try and execute it the way he told me just to see the measured results.
Cloning transformers | diyAudio
https://www.diyaudio.com/community/threads/cloning-transformers.124076/
Electra-Print, Magnequest, Doc Hoyer, Sowter, Heyboer, Bud Purvine, etc. As far as I know, the only times people have made clones for personal use (who haven't done it themselves for experiment) it has been at great expense through these …
Citation Series Resources (Under Construction)
http://www.mcshanedesign.net/specs.htm
The author of that quote is Doc Hoyer, the owner/operator of my recommended rewinder, Audio Transformers. No, it isn't inexpensive, but if you have a Citation that needs an output transformer, you have had little or no hope until now. The typical fee for a rewind is $450.00 (as of 12/00) plus shipping, but it's worth every penny in my opinion.
Audiogon Discussion Forum
https://forum.audiogon.com/discussions/options-info-for-bad-scott-lk-150-power-transform
I did contact Doc Hoyer who was recommended for a rewind of the existing transformer. He had not wound one of these units in the past. He would have to do a little reverse engineering along with the winding so his estimate was on the expensive side.
Suppliers for Vintage Electronics, Radio Parts, Tubes, etc.
https://www.radiomuseum.org/forum/north_american_suppliers_for_vintage_electronics_28_nov_11.html
The list below shows suppliers in North America for parts and restoration supplies for antique radios, electronic phonographs, tape decks, and TVs. This list is intended for suppliers that serve unique needs in the vintage electronics community, so the big modern electronics supply houses like Mouser, Newark, and Digi-Key are not included.
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