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Total 44 documents matching your query.

41. Re: [Amps] 3CX1200 tubes (score: 1)
Author: "Dick Hanson" <dick@dkhanson.com>
Date: Sun, 22 Mar 2015 09:34:04 -0500
Hi Randy.... The tubes are electrically identical, but there are some things you'd want to know if you're considering an amp. The A7 and D7 have 'long' grid leads that internally terminate in one of
/archives//html/Amps/2015-03/msg00055.html (8,147 bytes)

42. Re: [Amps] 3CX1200 tubes (score: 1)
Author: "Dick Hanson" <dick@dkhanson.com>
Date: Fri, 27 Mar 2015 05:53:57 -0500
These tubes are electrically similar, so they would have same IMD specs etc. That said, the Z7 would be the better choice; an even better choice is the YC229 which has a larger anode cooler = more di
/archives//html/Amps/2015-03/msg00069.html (9,148 bytes)

43. Re: [Amps] 3CX800 grid collet or SK1900 (score: 1)
Author: "Dick Hanson" <dick@dkhanson.com>
Date: Mon, 15 Jun 2015 10:50:14 -0500
Guys... I know in the Commander 2m single 3CX800 amps, the grid collets used had a full complement of 'teeth'. In other words, there were many contacts all around the collet. Same deal for the K1FO (
/archives//html/Amps/2015-06/msg00031.html (10,256 bytes)

44. Re: [Amps] Follow-up...re: Time to ask for help. (score: 1)
Author: "Dick Hanson" <dick@dkhanson.com>
Date: Mon, 27 Jul 2015 20:18:51 -0500
RF grounded screens (Eimac socket WITH bypass) + total 10K resistor(s) hung from screen to ground + swamped grid circuit = don't need no stinkin neutralization. Period. Especially at 6m. 73 Dick, K5A
/archives//html/Amps/2015-07/msg00167.html (10,864 bytes)


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