Interesting information! I learned something new. It seems as though there are still plenty of the 807s around while the 837 is a little more scarce. Think I'll keep the dozen or so I have as spares for the art13s and the TBW xmtr here.
de KA4JVY Mark --- Brian Carling <[EMAIL PROTECTED]> wrote: > Don't believe the specs on the 837. > I had one of those P&H linears with four 837s and two 816s. > They will put out plenty of power. It was rated for > 800W p.e.p. input and would do it. Don't try that with 807s. > Oh you could... I am just saying that the 837 is a > very decent power tube! > > On 9 Oct 2004 at 5:03, Mark Foltarz wrote: > > > Thats the problem with this hobby. It cost too much OONEY... > > HI > > > > Mark > > > > > > --- Glen Zook <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> 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 > > > > > > Web sites > > > > > > http://home.comcast.net/~k9sth > > > http://home.comcast.net/~zcomco > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Tired of spam? Yahoo! Mail has the best spam protection around > > > http://mail.yahoo.com > > > > > > > > > > > > > _______________________________ > > Do you Yahoo!? > > Declare Yourself - Register online to vote today! > > http://vote.yahoo.com > > ______________________________________________________________ > > AMRadio mailing list > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > Help: http://mailman.qth.net/mmfaq.html > > Post: mailto:[email protected] > > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail
