To: | <amps@contesting.com> |
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Subject: | [AMPS] Diodes |
From: | philk5pc@tyler.net (Phil Clements) |
Date: | Tue, 22 Feb 2000 12:16:42 -0600 |
> I was reading the HF amps section the other day, and was surprised to read > the flat statement that the filament choke is not necessary in > grounded-grid amplifiers at HF. Or did I misunderstand? > > 73, Pete N4ZR > That is true if you are talking about indirectly heated tubes with a separate cathode pin(s). The old glass tubes still need one. BTW, I see lots of ridiculously high bids for B&W FC-15's and FC-30's on E-Bay. Bear in mind that these do not cover 160 meters when you are bidding! (((73))) Phil, K5PC -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm |
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