On 3/28/2011 3:38 PM, Diane & Edward Swynar wrote:
> Hi Roger et al,
>
> I use a pair of 813s in parallel grounded-grid service here in my homebrewed
> KW amplifier, and---I'm blushing as I type this!---but I have NEVER EVER
> purchased any of the jugs that are in it, or the spares that I have here,
> brand new...
>
I forgot the old 813. I have 3 of them up on the shelf and keep looking
for more.
I used to run the "old legal limit" with a pair of them as you
describe. I ran into a guy on 40 a while back who claimed he could get
2400 PEP out of 4 of them. I don't know if his amp was a monoband or
covered all of the HF bands.
I see the GS-31 (1KW), GI-46 (1KW), and little GI-7B are at reasonable
prices and seem popular. With the removable anode coolers on this
series and the popularity of converting the old Dentron MLA2500B to a
pair of GI-7Bs that no one has machined a transverse version of the
cooler to make them even more compatible with the old 8875s I think they
used.
> They are all either Hamfest finds, or freebies from friends.
>
> Life's far too short to pay-off a retiree's ransom for new& exotic
> tubes---
AMEN!
> and I have yet to hear anyone at the DX end of my QSOs asking me (or
> expressing any care whatsoever) which tube(s) I might be using! Hi Hi
There does seem to be a lot of interest in what tube(s) are in homebrew
amps though.
73
Roger (K8RI)
> ~73~ de Eddy VE3CUI - VE3XZ
>
>
> **********************************************
>
> ----- Original Message -----
> From: "Roger (sub1)"<sub1@rogerhalstead.com>
> To:<amps@contesting.com>
> Sent: Monday, March 28, 2011 1:11 PM
> Subject: Re: [Amps] Homebrew is back..
>
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