- 1. [Amps] Alpha 77Dx Filament - No Free Lunch (score: 1)
- Author: "Paul Christensen" <w9ac@arrl.net>
- Date: Fri, 23 Jan 2009 13:58:32 -0500
- Earlier, I had posted a comment about being able to "bring life back" to my 8877 tubes where they had developed an intermittent short between cathode and filament. One astute observer thwarted my thi
- /archives//html/Amps/2009-01/msg00272.html (8,773 bytes)
- 2. Re: [Amps] Alpha 77Dx Filament - No Free Lunch (score: 1)
- Author: "Dan Hearn" <n5ar@air-pipe.com>
- Date: Fri, 23 Jan 2009 11:42:05 -0800
- Paul, a number of years back I installed a couple of mobile rigs in my car. The power leads were fused using the screw in type holders used in our radio gear. I measured the voltage drop in the holde
- /archives//html/Amps/2009-01/msg00273.html (9,682 bytes)
- 3. Re: [Amps] Alpha 77Dx Filament - No Free Lunch (score: 1)
- Author: "Carl" <km1h@jeremy.mv.com>
- Date: Fri, 23 Jan 2009 15:33:45 -0500
- What is the inrush current of a good filament or does the slow warmup process mitigate that? Ive never looked at that so havent an answer. Carl KM1H _______________________________________________ Am
- /archives//html/Amps/2009-01/msg00274.html (9,923 bytes)
- 4. Re: [Amps] Alpha 77Dx Filament - No Free Lunch (score: 1)
- Author: Steve Thompson <g8gsq@eltac.co.uk>
- Date: Mon, 26 Jan 2009 07:46:34 +0000
- Where the intermittent connection bring about a short across the heater supply, is it robust enough to carry the short circuit current and take out a 15A fuse? I'd guess that the arcing when the cont
- /archives//html/Amps/2009-01/msg00292.html (8,264 bytes)
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