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Total 11 documents matching your query.

1. [AMPS] 4-1000A amp design (score: 1): Author: odin@webspan.net (Steve Bermudez); Date: Mon, 10 Aug 1998 01:26:29 -0400; This is a multi-part message in MIME format. --=_NextPart_000_0009_01BDC3FD.E643FF00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Greetings to the Group,; /archives//html/Amps/1998-08/msg00078.html (12,146 bytes)
2. [AMPS] 4-1000A amp design (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 10 Aug 98 09:25:52 -0500; Hi Steve, As someone who is fighting this tube right now in an amp design, I would say that if this is your first HF PA design, it's not going to be easy. I didn't believe others about this at first; /archives//html/Amps/1998-08/msg00079.html (9,374 bytes)
3. [AMPS] 4-1000A amp design (score: 1): Author: W6RU@aol.com (W6RU@aol.com); Date: Mon, 10 Aug 1998 14:36:50 EDT; One very important fact in the stability of the 4-1000A amp in "grounded grid" is to use the plastic Eimac socket and run the 3 grid connections through the side slits in the socket to chassis ground; /archives//html/Amps/1998-08/msg00081.html (9,594 bytes)
4. [AMPS] 4-1000A amp design (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 10 Aug 98 14:06:05 -0500; This all depends on wether or not you are using parasitic supressors and fuse resistors in the grid leads. Also, it is sometimes helpful to actually ADD a little inductance in the screen so as to mo; /archives//html/Amps/1998-08/msg00082.html (8,836 bytes)
5. [AMPS] 4-1000A amp design (score: 1): Author: sbookout@mnsinc.com (Steve); Date: Mon, 10 Aug 1998 16:44:08 -0400; So, John, (and all) what is the story on the aluminum socket for those of us in the dark and in the possession of the Alum type socket. Why am I now in deep Kim-chee (sp?) Tks 73 de Steve, NJ4F ** P; /archives//html/Amps/1998-08/msg00083.html (8,077 bytes)
6. [AMPS] 4-1000A amp design (score: 1): Author: bob.sutton@xtra.co.nz (Bob Sutton); Date: Tue, 11 Aug 1998 09:09:07 +1200; I've "been there" with the aluminium sockets and cured the instability (in my case a VHF ocillation) with a VHF series tuned circuit from one of the cathode/filament pins to chassis (or from a cathod; /archives//html/Amps/1998-08/msg00084.html (12,028 bytes)
7. [AMPS] 4-1000A amp design (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 10 Aug 98 16:49:52 -0500; Is this grid driven or cathode driven? Impressive! 73, Jon KE9NA -- Jon Ogden jono@enteract.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW: http://www.contesting.co; /archives//html/Amps/1998-08/msg00085.html (8,143 bytes)
8. [AMPS] 4-1000A amp design (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 10 Aug 98 16:51:49 -0500; There is something about the inductance of that socket that is very bad. I don't know for sure since I have never used it (my PA came with the plastic one). But from all I have heard, GET RID OF IT!; /archives//html/Amps/1998-08/msg00086.html (8,182 bytes)
9. [AMPS] 4-1000A amp design (score: 1): Author: bob.sutton@xtra.co.nz (Bob Sutton); Date: Tue, 11 Aug 1998 09:47:27 +1200; For those who haven't seen it, there is a collection of e-mail(?) comments about experiences with 4-1000 tubes and amplifiers (and other tubes/amps), including tips to stabilise the 4-1000A at ... ht; /archives//html/Amps/1998-08/msg00087.html (8,081 bytes)
10. [AMPS] 4-1000A amp design (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 10 Aug 98 17:11:02 -0500; IMHO, some of those posting were facetious. The 4-1000A is not spec'd for anywhere near 12KV! And at 12KV, I would line my RF cabinet with lead as x-rays are prevelant at voltages about 10KV. So to; /archives//html/Amps/1998-08/msg00088.html (8,093 bytes)
11. [AMPS] 4-1000A amp design (score: 1): Author: bob.sutton@xtra.co.nz (Bob Sutton); Date: Tue, 11 Aug 1998 12:50:49 +1200; Cathode driven. I tried it as a grid driven pair of 4-1000's but gave up in frustration ... all those power supplies and mediocre results! I know others who have succeeded with grid driven, but the c; /archives//html/Amps/1998-08/msg00091.html (9,188 bytes)

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