DAVE MADE DAVE MADE DAVE MADE
Sincerely,
Dr. William J. Schmidt, II K9HZ
Trustee of the North American QRO - Central Division Club - K9ZC
"Collector of Edison Wind-up Phonographs... Do you have one for me?"
Email: bill@wjschmidt.com
Alternate Email: wmschmidt@charter.net
WebPage: www.wjschmidt.com
----- Original Message -----
From: "Will Matney" <craxd1@ezwv.com>
To: <amps@contesting.com>
Sent: Tuesday, May 25, 2004 10:04 AM
Subject: [Amps] 12 tube 3-500Z
> That 12 holer on ebay using (12) 3-500Z's is a piece of work aint it?
> You would need at least 1 Kw to drive the thing where no standard radio
> could ever drive it. Although, it is possible to do this, I seen several
> flaws to this amp. First is the cooling as I only caught 5 muffin fans
> on the top, and what looked like 3 more blowing in at the bottom. I
> believe it were me, I would have used a couple of large blowers in the
> bottom, then chimneys around the tubes. We all know the heat these
> things create, especially around the tube pins at the bottom. Next, if
> this is what I was seeing, the filament transformer was in the bottom?
> If it was it, it kinda looked awful small to me! It about had to be it
> as the leads for the filaments choke was tied directly to it. Third, I
> never noticed hardly any bypass capacitors in the bottom of this beast.
> Forth, you can notice in the top that it was used in high frequency only
> with no band switch. Last, the plate choke looks awful small to me too!
> I think I'm just bad to knit-pick. Anyhow, it was an attempt wasn't
> it........
>
> Will Matney
> US Amp
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|