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1. [Amps] Filament Suppy, Info for G8WRB (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Sun, 03 Jul 2011 08:49:15 +0800; David, I've deleted the emails on the switchmode filament supply thread but here is some info which may or may not be helpful. Go to http://f1frv.free.fr/ Scroll down to AMPLIFIERS SLOW RISE HEATER R; /archives//html/Amps/2011-07/msg00005.html (7,007 bytes)
2. Re: [Amps] Filament Suppy, Info for G8WRB (score: 1): Author: "Dr. David Kirkby" <david.kirkby@onetel.net>; Date: Sun, 03 Jul 2011 04:51:05 +0100; Thank you. It's a bit hard to make use of, as I only know English. I see the link to eBay for 5 V SMPS, but any I've found can only be trimmed +/- 10%, so giving a maximum output voltage of 5.5 V, so; /archives//html/Amps/2011-07/msg00010.html (7,759 bytes)
3. Re: [Amps] Filament Suppy, Info for G8WRB (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Sun, 3 Jul 2011 12:17:00 -0700 (PDT); Hi David, I've tweaked two commercial 5 volt SPS's up to 6 volts in this application. The only caveat is that the crowbar point needs to be run up in concert. I'd surmise that an old (1990's vintage); /archives//html/Amps/2011-07/msg00016.html (9,140 bytes)

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