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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment.

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Old 28th Aug 2013, 8:37 pm   #61
leakstereo20
Retired Dormant Member
 
Join Date: Oct 2011
Location: Herlev, Denmark
Posts: 94
Default Re: Michaelson and Austin TVA 1 Bias Help

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Originally Posted by AC/HL View Post
Depends on what you mean by off topic. Please confine the discussion to this amplifier or start a new thread.
I believed that this belonged to a little history and discussion that lay behind the creation of the amplifiers from Michealson & Austin, and thus did not follow the idea in this thread about improvement of these excellent amplifiers.
After having looked at the text a second time, it is certainly not that far away from the thread anyway,....I think

Kim
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Old 14th Oct 2014, 8:20 pm   #62
leakstereo20
Retired Dormant Member
 
Join Date: Oct 2011
Location: Herlev, Denmark
Posts: 94
Default Re: Michaelson and Austin TVA 1 Bias Help

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Originally Posted by robin coleman View Post
I will try and remember. The PCB's were made by Anglia PCB company in St. Ives most of the time. We copied a working sample to wire up. I did 12 hour shifts at Papworth but also took valve assemblies and who units to make at weekends. Wish I'd built myself some up.
Hi Robin,

I hope you have time for this? the old TVA-1 thread.

Winter is approaching, and I have not completed the renovation of my old TVA-1 with new components.
Ever since you wrote about your knowledge of the production of valve amps from Michaelson & Austin, I wondered whether you were keeping old records of the standard mounting of a TVA-1?
A hand drawing of the standard mounting model, some images, or other information described on printed paper, would be of great help to me?

Soon I shall start to rewire the groundpoint connections on the TVA-1 sample I bought, according to what you told me.

I hope to hear from you.

Sincerely,
Kim
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