re: 813 supply voltage
One of the more infamous West Coast types used a
4 hole, then expanded out to 6 a tube 813 amplifier
with nearly 4KV on the plate.
This famous "Wescars Check-in Amplifier" is where
I learned that the mfgrs max supply voltage was not
a max value written in stone... and could easily
be "pushed up."
813's were so cheap back in the 80's he just kept
a couple of sets of spares around if required.
Using the amplifier SSB only, he never had a
problem and the amplifier still has the original
tubes on board (now retired as he's not as active
on 40 these days).
: --------- Forwarded message ----------
: From: "steve" <email@example.com>
: building new (to me) 3 hole 813 amp.
: about what kind of power out can i
: expect if running plate voltage at about
: 2800 to 2900 volts. driving with
: about 135 watts. just building for 160 to
: 20 mtr bands. tnx fer any info.
: steve firstname.lastname@example.org
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today! For your FREE software, visit:
FAQ on WWW: http://www.contesting.com/FAQ/amps
Administrative requests: amps-REQUEST@contesting.com