UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Chris55000 · 5th Nov 2018, 11:12 pm

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

5th Nov 2018, 11:12 pm	#1506
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,869	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 __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!