|[AMRadio] Re: [Boatanchors] 1625 tube, 807, 837|
Foltarz at rocketmail.com
Sat Oct 9 08:03:55 EDT 2004
Thats the problem with this hobby. It cost too much OONEY...
--- Glen Zook <gzook at yahoo.com> wrote:
> From the P&H Electronics advertisement on page 144 of
> the November 1960 issue of QST:
> NEW modern styling! NEW high efficiency 3 element
> band-switching pi net. Puts more power into any
> antenna or load from 50-70 ohms. For SSB, DSB, Linear
> AM, PM, CW and FSK. All bands 80-10 meters. May be
> driven to 800 WATTS PEP with popular 100 watt SSB
> exciters. Uses four modified 1625's in grounded grid.
> On customers order, will be furnished with 837's.
> (note: 1625's and 837's are not directly
> interchangeable, since sockets are different.)
> Typical P&H Low Z untuned input. TVI suppressed.
> Parasitic Free. Meter reads grid drive, plate
> current, RF amps output. Heavy duty power supply
> using 816's. NEW modernistic grey cabinet measures
> approx. 9" x 15" x 10 1/2". Panel is recessed. WANT
> TO SAVE OONEY? BUY IT IN KIT FORM. It's a breeze to
> assemble and wire. BEFORE YOR BUY - SEE THE NEW
> LA-400 AT YOUR DEALERS.
> P&H was out of Lafayette, Indiana (Purdue University
> is in West Lafayette).
> The 837 was definitely used in linear amplifiers in
> place of the modified 1625s.
> Also, the punctuation, spelling, etc., in the above
> quotation is exactly from the advertisement although
> they did violate some rules of English writing!
> Glen, K9STH
> --- Mark Foltarz <Foltarz at rocketmail.com> wrote:
> I don't think it was the 837 however.
> I recently had to look up specs on the 837 for a TBW
> transmitter I put on the air.
> I was suprised to see how weak the 837 is compared to
> the 807 - much less power from a 837.
> Glen, K9STH
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