>-----Original Message-----
>From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
>Behalf Of Mike Baker
>Sent: Wednesday, October 10, 2001 10:37 AM
>To: AMPS REFLECTOR; Jean-Michel Bombar
>Subject: Re: [AMPS] Help building mono band amp
<snip>
For any band up to 20 meters they kick butt and love high voltage.
<snip>
The 813's typical operation is to 30 MHz. I ran a pair on 10 meters
with 3350VDC on the plates.
Drove them with a Swan 500cx until the carbon plates many red
hues...Couldn't burn them out.
1983 "The Radio Amateur's Handbook"
Freq.: 30 Mc.
Plate V. 2500
Plate MA 125
Screen ma. 20
fil 10v 5A
Screen Volts 800
Cin PF 16.3
C gp PF .025
C out PF 14
Typical output AB2 two tubes is 650 W
Regards,
Geo W7LFD
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