I'm very surprised to hear this. Here's a counterargument: since the internal filament, cathode, and grid structures of an external anode tube dissipate very little heat, compared to the anode itself
All the large ceramic/metal tubes that I use require a cool-down period after the filament is completely extinguished, before fans blowing through the base of the tube, and anode water stop. I've des
Not all tubes do this and my experience is limited to just a few. The filament and cathode are probably the most massive structures in there other than the anode which has plenty of cooling. If I kil
I'm very surprised to hear this. Here's a counterargument: since the internal filament, cathode, and grid structures of an external anode tube dissipate very little heat, compared to the anode itself
When I said, "It cant hurt anything" My Father would say, "It cant do it any good." Why not err on the side of caution and run the fan a few minutes after shut down? Charles Harpole k4vud@hotmail.com
When I said, "It cant hurt anything" My Father would say, "It cant do it any good." Why not err on the side of caution and run the fan a few minutes after shut down? Charles Harpole k4vud@hotmail.com
I run an Amp Supply LK-500ZB. While it isn't a problem, being a VERY well built and designed amplifier, I have used nylon screws and nuts to place a muffin fan over the top of the 3-500Zs. I have it
The Eimac data sheets of those tubes donīt say so. All the Henry amps with that tube donīt do so and the Racal TA1800 with its 4CX10000D doesnīt do it either. The data sheet of the 4CX15000A says air
Hi Charlie, I am in your corner and will continue running the amplifier cooling blower for a couple of minutes after removing plate and filament/heater voltage. This is not illegal or immoral so no t