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Old 5th Nov 2018, 6:31 pm   #1505
Chris55000
Nonode
 
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
Posts: 2,853
Default Re: The "Sussex" Homebrew Valve Tester.

Hi!

Further to my above post earlier today I have now chosen two inexpensive modules, currently about £10 total, that will (hopefully!) provide a simple economical series-heaters valve expansion for the Sussex Valve Tester suitable for 100mA, 150mA, 200mA, and 300mA valves.

Only one simple 12V isolated supply is needed, I'll provide exact details, drawings and specs when I've tested the circuit - the modules have to come from China!

(I know you've got "X" and 'L' series valves if you really do want to push the boat out but the number of times I've come across a 450mA or a 600mA valve in my lifetime is nil!)

Chris Williams
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