need advice

hello all, been reading the forum for a while but never posted before. so excuse my ignorance as im a newbie to this.

there's a local guy here selling a st70 that he was building but now needs to sell. it needs the power and both output transformers replaced. he has them but has not wired them in so that would be on me. however I just want to confirm that these are the correct units since its a brand I've never heard of before.

https://edcorusa.com/products/xpwr052-400v400-385-375-365-0-400ma?_pos=1&_sid=e9d3422c8&_ss=r

https://edcorusa.com/collections/tube-amplifier-push-pull-output-transformer/products/cxpp60-4-2k-60w-4-2k-ohms-push-pull-tube-output-transformer?variant=41513497362619

any help would be greatly appreciated

Mazen0822 wrote:hello all, been reading the forum for a while but never posted before. so excuse my ignorance as im a newbie to this.

there's a local guy here selling a st70 that he was building but now needs to sell. it needs the power and both output transformers replaced. he has them but has not wired them in so that would be on me. however I just want to confirm that these are the correct units since its a brand I've never heard of before.

https://edcorusa.com/products/xpwr052-400v400-385-375-365-0-400ma?_pos=1&_sid=e9d3422c8&_ss=r

https://edcorusa.com/collections/tube-amplifier-push-pull-output-transformer/products/cxpp60-4-2k-60w-4-2k-ohms-push-pull-tube-output-transformer?variant=41513497362619

any help would be greatly appreciated

No. It's not the transformers for a Dynaco ST70 clone. It might work in a EL34 type-amp
but NFB and other circuit details might need adjustment.

That power transformer doesn't even have windings for bias, 6.3v filament, and 5v filament! It's certainly not a replacement. The output transformers might work, but as previously stated might require circuit tweaking.
I'd avoid this- it sound like the seller doesn't know what's what, and that's the real reason for selling...