Woodside Renaissance STA-35 circuit schematic

f456gt Rank: Duo Posts: 63	Woodside Renaissance STA-35 circuit schematic Aug 18, 2020 18:03:55 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by f456gt on Aug 18, 2020 18:03:55 GMT Hi Chaps, I am looking for the circuit schematic for a Radford STA-35 amplifier. There are many on the web images but of other models. Cheers, Horacio

wannarock2 Rank: Quartet Posts: 353	Woodside Renaissance STA-35 circuit schematic Aug 18, 2020 18:22:29 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by wannarock2 on Aug 18, 2020 18:22:29 GMT Something like this? www.valve-radio.co.uk/literature/radford-sta35-renaissance-amplifier/
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f456gt Rank: Duo Posts: 63	Woodside Renaissance STA-35 circuit schematic Aug 18, 2020 18:53:33 GMT via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by f456gt on Aug 18, 2020 18:53:33 GMT Excellent, thank you. Horacio

f456gt
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Woodside Renaissance STA-35 circuit schematic Aug 19, 2020 20:41:43 GMT

Quote

Post by f456gt on Aug 19, 2020 20:41:43 GMT

I noticed two different main transformers in the STA35, please see photos. I have no idea which one is better. Looks to me that the one in the bottom photo is an older version.

Radford by vignale.355f1, on Flickr

Rafdord STA 35_1 by vignale.355f1, on Flickr

Last Edit: Aug 19, 2020 21:49:52 GMT by f456gt

MartinT Administrator Posts: 54,788	Woodside Renaissance STA-35 circuit schematic Aug 20, 2020 7:27:06 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by MartinT on Aug 20, 2020 7:27:06 GMT Completely different PCB layout, too.
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ChrisB Administrator Posts: 19,717	Woodside Renaissance STA-35 circuit schematic Aug 20, 2020 7:47:48 GMT via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by ChrisB on Aug 20, 2020 7:47:48 GMT I reckon the output transformers are smaller (in thickness) on the one in the lower image too.
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Woodside Renaissance STA-35 circuit schematic

Post by f456gt on Aug 18, 2020 18:03:55 GMT

Post by wannarock2 on Aug 18, 2020 18:22:29 GMT

Post by f456gt on Aug 18, 2020 18:53:33 GMT

Post by f456gt on Aug 19, 2020 20:41:43 GMT

Post by MartinT on Aug 20, 2020 7:27:06 GMT

Post by ChrisB on Aug 20, 2020 7:47:48 GMT