Why not just try to deal with his request or otherwise stifle the urge to
reply.
Id suggest 3B28's in placeof 866A's however, a direct swap.
Carl
----- Original Message -----
From: "Jim Thomson" <jim.thom@telus.net>
To: <amps@contesting.com>
Sent: Tuesday, June 25, 2019 12:45 PM
Subject: [Amps] Need some amplifier advice
Date: Tue, 25 Jun 2019 01:48:47 +0000 (UTC)
From: Joe Herdler <joe.herdler@yahoo.com>
To: amps@contesting.com
Subject: [Amps] Need some amplifier advice
<Hi All,
<I am looking either for plans for an 80 meter mono-band amplifier
optimized for the RTTY portion of the band or an actual amplifier itself.
I want an all tube amplifier, including the power supply. I want no solid
state components at all in this amp. I would like <it to be very
"overbuilt" so that when I run it at 500 watts RF power, it is just
idling. Of course, this is for RTTY, so it would be continuous duty at 500
Watts. I do not want to operate any higher than about 5oo watts.
<I would like full metering. It does not need to be rack mounted, but I do
want a rugged chassis, and excessive ventilation to keep the tubes safe
and so that those tubes last a long time. I do want it to be fully
enclosed to keep four and two legged children safe <from the lethal
voltages.
<Any ideas or locations for plans would be greatly appreciated.?
<Thank you so much!
<73,
<Joe Herdler KB0TXC
## why mess with tube rectifiers ?? That implies using a full wave
center tap config.... which is a dead loss imo.
Then u would also require the mating fil xfmr for the tube rectifiers...
which has the B+ coming out of the CT of the fil xfmr.
Its not 1956 anymore. You cant blow up 6A10 diodes, nor
10A10.... or 10A07s.
Jim VE7RF
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