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Old 4th April 2011, 03:58 PM
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pre65 pre65 is offline
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Join Date: Jan 2006
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Default Re: WAD Transformer Numbers Help Please

Can anyone tell me any specifications on D8773 which were output transformers on Pre 2.

I have acquired a pair and wonder what use I can put them to.

Everything in this post is my honest opinion based on what i thought I knew at that very moment in time.
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Old 6th February 2017, 09:56 AM
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Desmodromic Desmodromic is offline
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Default Re: WAD Transformer Numbers Help Please

Originally Posted by audiopete View Post
Hi all,

just to add the following for WAD Kel34

Mains Tx - Gold Seal Tor 251

Output Tx - D8530
I suspect that these part numbers relate to the E/I version. I have the earlier toroid output transformers on the amp that I'm currently restoring. The part nos are:

Mains Tx - as above Gold Seal Tor 251
Output Tx - YE620PB (mine are also marked B/N 19319

Hope this helps someone someday
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Old 22nd May 2018, 02:58 PM
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Phil Y Phil Y is offline
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Location: Bristol, UK
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Default Re: WAD Transformer Numbers Help Please

I have a 6550 here with:

Mains 7546 batch 11/04
O/P 7731 Hi88 4.5 P-P/4R batch 11/04
Choke 7500 6550/34 batch 07/04

Commission for Dark Skies (CfDS)
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Old 10th June 2021, 01:47 PM
greg2010 greg2010 is offline
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Location: Accrington
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Default Re: WAD Transformer Numbers Help Please

I have a pair of 300B PP mono's in bits.

Mains: D8756

Output: Design No. 7636 4K / 6R

Choke: D8755 10H 150mA

All dated 2003 with gold writing on black paper.
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