letterbeacon

Output transformer suggestions for solid state Pultec
« on: May 25, 2019, 06:43:10 PM »
I am going to build a solid state pultec clone using the 2520 DOA as the gain make-up stage.

I have the HS56 for the input, but don't have a second one for the output and I wondered what the options were, or what people would recommend.

The original used an HS56 wired in reverse, using the 250r tap so it's a 2:1 step up.

I was thinking the UTC A20 - anyone have any experience with that? Does anyone recommend any others?

It doesn't have to be vintage, I'm happy to use a modern transformer too.

Thanks.
« Last Edit: May 25, 2019, 06:53:37 PM by letterbeacon »


Re: Output transformer suggestions for solid state Pultec
« Reply #1 on: May 25, 2019, 10:58:27 PM »
The original used an HS56 wired in reverse, using the 250r tap so it's a 2:1 step up.
1:1.55 step-up.
In my opinion, should have been a 1:2 unless one thinks the sound of original Pultec SS is perfection.
I was thinking the UTC A20 - anyone have any experience with that?
sonically a dog.
and I am a UTC lover, the big LS-30's aren't much better.
Does anyone recommend any others?
fed from "zero" impedance, and please, lets not quibble as to what constitutes exactly 0 ohms,
the UTC A-22 get rave reviews.
It doesn't have to be vintage, I'm happy to use a modern transformer too.
any of the suitable Edcors, step-up.

letterbeacon

Re: Output transformer suggestions for solid state Pultec
« Reply #2 on: May 26, 2019, 09:35:00 AM »
Thanks, I'll look into the Edcors and also maybe Carnhill as I'm based in the UK.

Interesting that you say the A20 is a dog - it seems to get good reviews on here, especially used in Pultec circuits.


 

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