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Old 5th Nov 2018, 11:12 pm   #1506
Chris55000
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Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
Posts: 707
Default Re: The "Sussex" Homebrew Valve Tester.

Hi!

The Sussex Construction & Operating Manual states "Ed Dinning can manufacture transformers with an additional 6V winding for a fourth meter on request" and I ordered mine with this in mind, but for any Mamber who only had a standard three–meter transformer made, then a 3W dc–dc isolated converter module rated for 9 or 12V dc output can be connected to the Sussex's positive LT supply for the control circuits or rectified (W01 bridge and 1000u 25V) from one of the low voltage heater supply windings to power a fourth meter – these converters are rated 1kV isolation so the meter module's supply requirements are correctly catered for!

Chris Williams
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