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G6Tanuki · 28th Feb 2020, 2:11 pm

I've got loads of those CV9507 transistors here. All made by Texas Instruments Bedford according to the code.

The ubiquitous diode I remember from exchange-days was the 1N2071 - we had millions of the things and coerced them into all sorts of unusual applications [imagine hundreds of the things wired in series-parallel to use the 0.6v-per-diode forward-voltage-drop and let us use 115V equipment on 230V mains! I have STC New Southgate to thank for learning that one]

28th Feb 2020, 2:11 pm	#8
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,995	Re: TXE2 Exchanges I've got loads of those CV9507 transistors here. All made by Texas Instruments Bedford according to the code. The ubiquitous diode I remember from exchange-days was the 1N2071 - we had millions of the things and coerced them into all sorts of unusual applications [imagine hundreds of the things wired in series-parallel to use the 0.6v-per-diode forward-voltage-drop and let us use 115V equipment on 230V mains! I have STC New Southgate to thank for learning that one]