[Amps] Need some amplifier advice

[Carl]

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 at telus.net>
To: <amps at 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 at yahoo.com>
> To: amps at 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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