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1. [AMPS] L-4B (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Mon, 08 Sep 1997 12:43:48 +0000; Esteemed Reflectees: Don't see much commentary on the L-4B, but mine just cratered. Was in standby when a crack and long fizzle sound came out of the RF section. The grid resistor opened up, and the; /archives//html/Amps/1997-09/msg00162.html (7,483 bytes)
2. [AMPS] L-4B meter (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Tue, 09 Sep 1997 00:44:35 +0000; Esteemed Reflectees: Per my earlier query about the amp failure, Drake further advises no more 200uA movements are available. I'd kind of like to get the Ol' Girl working again, so does anyone know w; /archives//html/Amps/1997-09/msg00179.html (6,798 bytes)
3. [AMPS] L-4B grid ckt shorts (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Sat, 20 Sep 1997 16:51:34 +0000; Oh Powerful Reflectees: Ok I am now stymied. I replaced the 1-ohm 10w resistor and the multimeter that blew. Put new tubes in it, and it came right up working fine. Could not determine for sure if on; /archives//html/Amps/1997-09/msg00326.html (8,328 bytes)
4. [AMPS] SB-220s and Grandchildren (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Sun, 21 Sep 1997 16:09:24 +0000; That certainly beats throwing the baby out with the bath water... 73 de Jim, KF7E Jim Henderson jhenders@zianet.com jhenders@tdrss.wsc.nasa.gov kf7e@k5di.nm.usa.noam -- FAQ on WWW: http://www.contes; /archives//html/Amps/1997-09/msg00336.html (6,940 bytes)
5. [AMPS] adding a second tube (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Sun, 10 Aug 1997 15:28:39 +0000; Esteemed Reflectees: The comments expressed recently regarding adding a second tube to the existing one in the Alpha 77 series, without altering the tank, has made me thing about the practice as it a; /archives//html/Amps/1997-08/msg00087.html (7,564 bytes)
6. [AMPS] Henry 3KD on 160m (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Sun, 10 Aug 1997 15:28:45 +0000; Esteemed Reflectees: Have a 3KD that won't load to over 400w into a known good load, works FB (1500w) elsewhere. Seems to run out of tune/load range on 160m. Consulting the schematic, I find it calls; /archives//html/Amps/1997-08/msg00088.html (7,506 bytes)
7. [AMPS] Re: grave DX situation (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Tue, 1 Apr 1997 19:08:34 -0700; Bill though this probably belongs on the DX reflector, the answer is YES! That famous Russian radio pioneer R1P did............. 73 de Jim, KF7E Jim Henderson jhenders@zianet.com jhenders@tdrss.wsc.; /archives//html/Amps/1997-04/msg00024.html (6,770 bytes)
8. [AMPS] Re: acrimony (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Mon, 21 Apr 1997 09:06:47 -0600; And I second that. Technical disagreement is educational for the general readership, acrimonious personal commentary is disrespectful the the readers and belongs on back-channel e-mail. Engineering; /archives//html/Amps/1997-04/msg00303.html (6,940 bytes)
9. [AMPS] The 3CX3000 - Why not? (score: 1): Author: jhenders@ZIANET.COM (Jim Henderson); Date: Wed, 23 Apr 1997 08:47:12 -0600; The 8160's anode cooler design is so efficient that MMMM, with a filament running 94 to 104 amps at 7.5v, I can see why people are warming up to these tubes...... Jim, KF7E Jim Henderson jhenders@zia; /archives//html/Amps/1997-04/msg00346.html (7,235 bytes)
10. [AMPS] Swan MK2 (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Fri, 25 Apr 1997 08:55:27 -0600; Any of the reflectees with Swans know where to buy a replacement power relay? This is the one with the Magnecraft dual-pole reed relay. How about a substitute or reliable mod? Jim, KF7E Jim Henderson; /archives//html/Amps/1997-04/msg00394.html (6,509 bytes)
11. [AMPS] solid-state power relays (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Fri, 25 Apr 1997 13:21:32 -0600; Have any Esteemed Reflectees had and experience using s/s relays with the zero-crossing detectors in them for use as part or all of a step/start AC input on amp supplies? Jim, KF7E Jim Henderson jhen; /archives//html/Amps/1997-04/msg00399.html (6,764 bytes)
12. [AMPS] PL-8432 tubes. (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Sat, 26 Apr 1997 12:39:22 -0600; Oh Gurus of Amperstan: Found some unused Penta Labs PL-8432s in a garage sale. No handles, but has anyone got a circuit for HF with these? Late 1966 date code, appear unused. Jim, KF7E Jim Henderson; /archives//html/Amps/1997-04/msg00413.html (6,527 bytes)
13. [AMPS] www page (score: 1): Author: jhenders@zianet.com (Jim Henderson); Date: Sat, 26 Apr 1997 15:54:53 -0600; Lost the URL given last week for the web page with all the power tubes' data sheets on line. Anyone with it pse send direct? Thanx! Jim, KF7E Jim Henderson jhenders@zianet.com jhenders@tdrss.wsc.nasa; /archives//html/Amps/1997-04/msg00419.html (6,437 bytes)

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