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Top Cap · 18th May 2010, 11:48 pm

My Sussex is just waiting a panel meter and final connections between PCB and the rest of the circuitry. All switches and valve holders are wired but I did have a job trying to get everything into such a small sized case. Hopefully nothing will short out when it all comes together but it has indeed been a challenge. I have no proper workshop facilities here and the worst task was cutting the meter rectangular holes with a hand file, the aluminium must be at least 3mm thick! I decided to add a Blue Cathode Top Cap connection so that when I get a D series valve to test I can simply use a patch lead between it and the Blue External Heater Terminal post as this is un-switched. My camera has gone away for service so I can only repost the drawing I have sketched for it, but it is pretty close to what I have.
Les

18th May 2010, 11:48 pm	#363
Top Cap Octode Join Date: Mar 2006 Location: Watford, Hertfordshire, UK. Posts: 1,270	Re: The "Sussex" Homebrew Valve Tester. My Sussex is just waiting a panel meter and final connections between PCB and the rest of the circuitry. All switches and valve holders are wired but I did have a job trying to get everything into such a small sized case. Hopefully nothing will short out when it all comes together but it has indeed been a challenge. I have no proper workshop facilities here and the worst task was cutting the meter rectangular holes with a hand file, the aluminium must be at least 3mm thick! I decided to add a Blue Cathode Top Cap connection so that when I get a D series valve to test I can simply use a patch lead between it and the Blue External Heater Terminal post as this is un-switched. My camera has gone away for service so I can only repost the drawing I have sketched for it, but it is pretty close to what I have. Les Attached Thumbnails __________________ Whether the Top Cap is Grid or Anode - touching it will give you a buzz either way!