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Alistair D · 8th Oct 2019, 11:31 pm

I recognise your PSU from the fact that there are 2 internal pots for adjusting the voltage range. I had one that was very similar internally, alas I gave it away many years ago. As far as I remember the series pass valves were KT66s. What ever they were they did not have top caps.

Al

8th Oct 2019, 11:31 pm	#7
Alistair D Nonode Join Date: Jan 2010 Location: Edinburgh, UK. Posts: 2,008	Re: Solartron SRS153 information I recognise your PSU from the fact that there are 2 internal pots for adjusting the voltage range. I had one that was very similar internally, alas I gave it away many years ago. As far as I remember the series pass valves were KT66s. What ever they were they did not have top caps. Al __________________ I won't tell you how I discovered that.