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Old 8th Apr 2018, 9:59 am   #1491
David G4EBT
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Join Date: Feb 2003
Location: Cottingham, East Yorkshire, UK.
Posts: 5,737
Default Re: The "Sussex" Homebrew Valve Tester.

Quote:
Originally Posted by G4WYZ MikeyP View Post
The excellent info David G4EBT on meter suppliers.

Unfortunately Asia Engineer does not supply to the UK anymore.

There is another supplier on EBay called 365-Bestseller http://stores.ebay.co.uk/365-bestsel...p2047675.l2563
The supply all three meters.

ie
https://www.ebay.co.uk/itm/3-1-2-Blu...wAAOxy7rdRERLb

73's Mike g4wyz
Just a point worth reiterating, which isn't always made clear in the description of digital panel meters, (whether measuring Voltage or Current), is that the supply which powers the meter must not share a common ground with the circuit being measured. At the link above it does mention that requirement in the description, but not, for example, with the 500V DC one here:

http://vi.vipr.ebaydesc.com/ws/eBayI...1&secureDesc=0

I've no personal experience of the Sussex but discovered this requirement when I built the Capacitor Reformer which initially featured in Radio Bygones, and later in the BVWS Bulletin, the circuit of which had an error showing a common ground. I've mentioned this before but it might be worth reiterating.

Hopefully, when the meters arrive they do have a datasheet, but if anyone is unclear, I've attached a copy of the sheet which came with my meter, and others that I've bought since.

What a wonderful project this has turned out to be, with many stunning examples of completed testers, (many more yet to be finished!), and such commitment by so many forum members in developing the original design.
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