mobyd

AKG Solid Tube power transformer kaput.
« on: June 22, 2020, 08:41:56 PM »
From casting around, it would appear that these transformers are less than stellar in the reliability stakes.
AKG, in their infinite wisdom, have dropped the part (0022E0036) from their spares list. What to do?
230v -> 270v + 23v transformers are a bit of a rarity, and the incumbent one is potted, hence unrewindable.
Not enough room for a pair of back to back 230->24v units.
Cheers
Mike


gyraf

Re: AKG Solid Tube power transformer kaput.
« Reply #1 on: June 23, 2020, 03:29:14 AM »
..perhaps ask your local transformer winding guys - you'd be surprised of what they sometimes can do at decent cost..

/Jakob E.
..note to self: don't let Harman run your company..

Rob Flinn

Re: AKG Solid Tube power transformer kaput.
« Reply #2 on: June 23, 2020, 03:53:50 AM »
Where do I join the (massive) queue of people who have replaced the transformer in Solid Tube PSU's before ......
regards Rob

mobyd

Re: AKG Solid Tube power transformer kaput.
« Reply #3 on: June 23, 2020, 04:00:05 PM »
Gyraf, we used to have half a dozen people around Auckland who could do this sort of work. They have all died and nobody has taken their places.

radardoug

Re: AKG Solid Tube power transformer kaput.
« Reply #4 on: June 23, 2020, 04:12:47 PM »
Moby, talk to George and Thin. Also Transformer Specialties in Henderson will wind anything you want.

mjrippe

Re: AKG Solid Tube power transformer kaput.
« Reply #5 on: June 24, 2020, 01:55:53 PM »
Over here (United States of Ashamed to live here) Edcor will make custom transformers for a reasonable price.  I had them wind new power transformers for the LOMO 19A19 tube mic power supply which is also notorious for failing over time.  I had them made with a 120VAC primary for use here.  I believe it was under $100USD for a pair including the initial design fee.  Now that they have the design, I can order them for even less.

Whoops

Re: AKG Solid Tube power transformer kaput.
« Reply #6 on: June 26, 2020, 10:17:19 PM »
Not enough room for a pair of back to back 230->24v units.

With creativity you can install 2 transformers inside the PSU box


 

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