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Old Bryston 3B transformers
Old Bryston 3B transformers
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Old 6th April 2016, 05:29 PM   #1
Max Plott is offline Max Plott  Canada
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Default Old Bryston 3B transformers

Hi I'm new here and have a question for you all, what transformer is in the 30 year old Bryston 3B? Turns out the one I bought as a youngster, (supposed demo model) doesn't have the proper transformers in it, it has 2B transformers. So what is the proper transformer and where can I buy them.
It would be nice to hear what Ive been missing for all these years.

Max Plott
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Old 6th April 2016, 05:33 PM   #2
llwhtt is offline llwhtt  United States
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I would contact Bryston as a first step, they should be able to answer your questions and possibly have the xfmrs.

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Old 6th April 2016, 06:08 PM   #3
gpapag is offline gpapag  Greece
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Old Bryston 3B transformers
Welcome Max

To answer your question
One PLITRON 673853-04 per channel. See page 20 here:

It was a 225VA transformer
Primary 2x115V 50/60Hz
Secondary 2x41V

Go to PLITRON site
225VA Power Transformer

From their current models, the one that is the closest to the old one, is ID: 067026201
Primary 2x115V 50/60Hz
Secondary 2x40V, 2.81A

["Second Law is a bitch." - SY]
["I insist on respecting the means of the average person working in their garage/basement." -Scott Wurcer]
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Old 6th April 2016, 11:03 PM   #4
Max Plott is offline Max Plott  Canada
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Join Date: Mar 2016
Default Old 3B transformers

Talk about fast, you guys are great thanks y'all.
I had this old bugger at bryston and they said they don't have the part and considering cost and all that it's not worth refurbing.
The amp is in good shape no doubt considering it only had 1/3 the power going through her for thirty years.
You know I always wondered why it never got warm, DOA!

Thanks again guys
Great reading on this site.
Guy P
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