Im going to be setting up single band amplifiers for a contest station. How would you go about metering them? They will use an 8877 tube. Currently the amplifiers have Ians (GM3SEK) triode boards in
-- ORIGINAL MESSAGE --(may be snipped) REPLY: In modern amps. both the B- and B+ are NOT connected to ground, but left floating. The grid current meter is connected from B- to ground. The plate curre
REPLY: In modern amps. both the B- and B+ are NOT connected to ground, but left floating. The grid current meter is connected from B- to ground. The plate current (actually cathode current) meter is
Running multiple RF decks simultaneously from one HV power supply is a bit trickier than it might seem at first, especially if you want individual metering on each RF deck. Grid-driven tetrode amps w
triode amps, its not really an issue, provided the same tube / B+ is used on all the RF decks. What I have learned..the hard way, is when using HV in one box, and the RF deck in another box, the B-
I have a 6 meter GS31B amplifier that I am running on a single power supply currently. The plan is to run a GS31B 2 meter amp and a GS31B70cm amp from the same supply. 2Meter amp is in design stages
Can the IP not be metered with a modern magnetic DC current sensor, directly in the anode line? That would at first glance dodge all the metering and PSU complexity. I accept the safety reasons IP ha
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Complexity? It's hard to imagine anything simpler (and safer!) than the B- measuring scheme. 73, Bill W6WRT _____________________________________________