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21. Re: [Amps] RE : DIN stands for....? (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Mon, 27 Feb 2006 16:10:58 -0500; Got 7 pin, band data, and 8 pin, accessory, DIN connectors for my Icom from DigiKey. Is there a difference between Icom and Yaesu DIN connectors? 73, Mike, K4GMH _____________________________________; /archives//html/Amps/2006-02/msg00643.html (10,553 bytes)
22. [Amps] Var. Cap. Identify (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Thu, 02 Mar 2006 23:46:57 -0500; Hello, Need info. on an E. F. Johnson, split stator variable capacitor. The Johnson label is damaged and all the information that can be obtained from it is: 0.125" spacing, Model No. 1X3-906 (the "X; /archives//html/Amps/2006-03/msg00030.html (6,570 bytes)
23. [Amps] Centralab JVN-10 (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Sat, 04 Mar 2006 17:36:10 -0500; Hello, Need to find out the current capability of a couple of switch sections? Both are the same, DP8T, and one has JVN-10 marked on it. My first guess is the switch sections were made by Centralab.; /archives//html/Amps/2006-03/msg00079.html (6,257 bytes)
24. Re: [Amps] Microwave Oven Autopsy (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Mon, 13 Mar 2006 10:42:59 -0500; Got a couple of microwave oven xfmrs. Would like to build a hi-pot tester using one of these. Any reason one couldn't be used with a quadrupling circuit? 73, Mike, K4GMH _____________________________; /archives//html/Amps/2006-03/msg00325.html (13,709 bytes)
25. [Amps] Two Amps, Single Power Supply (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Sat, 15 Apr 2006 19:41:56 -0400; Hello, Two amps (GS-35B), one power supply - Can one amp. be used to control the HV for both amps even if the second amp's filament hasn't come up to full temp. without damaging the second amp? The s; /archives//html/Amps/2006-04/msg00275.html (6,543 bytes)
26. [Amps] GS35B Amp 15 m Situation (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Sun, 02 Jul 2006 23:45:29 -0400; Hello, Having an issue with a homemade GS35B operationon 15 and 17 m. When keyed, the power seems to hesitate before going up to 1.5 KW output. CW is a mess on these bands due to this situation. On R; /archives//html/Amps/2006-07/msg00064.html (7,693 bytes)
27. Re: [Amps] GS35B Amp 15 m Situation (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Mon, 03 Jul 2006 07:34:37 -0400; Hello Will, Thanks for the suggestion on checking the bandswitch as each band has a separate position. I'll do that and get back to you. Each band has a separate pi input circuit matched to the tube; /archives//html/Amps/2006-07/msg00087.html (9,721 bytes)
28. Re: [Amps] GS35B Amp 15 m Situation (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Mon, 03 Jul 2006 07:56:37 -0400; Hello Tony, Thanks for the suggestions on where to look. I haven't monitored the drive signal. The IC746 does have an overshoot on the leading edge as its internal ALC catches up. The IC746, as obser; /archives//html/Amps/2006-07/msg00088.html (10,794 bytes)
29. [Amps] Kilovac HC-2 Mounting Nut (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Thu, 14 Sep 2006 23:25:09 -0400; Hello, Need a couple of the mounting nuts for a pair of Kilovac HC-2. Tried M14x1.5mm nuts, but none work on the HC-2. The threads on the M14x1.5 nuts I could find were too coarse for the fine thread; /archives//html/Amps/2006-09/msg00199.html (6,441 bytes)
30. [Amps] HV Turn On Delay (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Tue, 26 Sep 2006 23:34:16 -0400; Hello, Planning on using a single power supply for two GS35-B amplifiers. Only one amp. will control the HV power supply. This amp. has a three minute delay from the time the filament applied before; /archives//html/Amps/2006-09/msg00316.html (6,520 bytes)
31. [Amps] Need Groth Type Knobs (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Thu, 23 Nov 2006 21:30:26 -0500; Hello, Needed a couple of knobs suitable for use with Groth dial mechanisms. I have the Groth dial mechanisms other than the knobs. Knobs with spinners are preferred. The knobs are for vacuum variabl; /archives//html/Amps/2006-11/msg00256.html (6,630 bytes)
32. Re: [Amps] METER PROGRAM (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Thu, 30 Nov 2006 11:37:49 -0500; Agree with Bob's comments 100%. 73, Mike, K4GMH _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-11/msg00283.html (8,879 bytes)
33. Re: [Amps] is selling amps parts OK...? (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Thu, 30 Nov 2006 17:57:37 -0500; Agree with Jim regarding dealing directly with the seller via the reflector. You can establish a nice working relationship that extends past the purchase. In my case bought a couple of GS35-B tubes J; /archives//html/Amps/2006-11/msg00287.html (8,944 bytes)
34. [Amps] PiL Output Network Adjustment (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Thu, 14 Dec 2006 23:05:05 -0500; Hello, Just finished(?) a homemade GS35-B amp. for 80, 40, 20, 15 and 10 meters. All the control, metering, input and filament circuits are working the way they should. Unfortunately, the PiL output; /archives//html/Amps/2006-12/msg00092.html (8,365 bytes)
35. Re: [Amps] PiL Output Network Adjustment (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Sun, 24 Dec 2006 19:23:01 -0500; Hello, Status of the Pi-L in the amp. The L2 toroid was replaced by an air core coil and the Pi-L can be adjusted to for a SWR of ~ 1 to 1 at 50 Ohms output with 2700 Ohms across the tube (no voltage; /archives//html/Amps/2006-12/msg00212.html (7,878 bytes)
36. [Amps] Amp 10 m Output Fold Back (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Mon, 15 Jan 2007 17:35:50 -0500; Hello, Need help with figuring out why 10 meters doesn't work properly on a homemade GS35-B amp. when the pi network input circuit is used. Symptoms: without the 10 meters pi network input circuit co; /archives//html/Amps/2007-01/msg00162.html (8,147 bytes)
37. [Amps] Amp 10 m Output Fold Back Also on 15 m (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Tue, 16 Jan 2007 16:38:19 -0500; Just found the same problem on 15 meters, except it occurs when the power output reaches 1100 W. The output then drops to 400 W until the drive or any other control that can influence the output (C1; /archives//html/Amps/2007-01/msg00172.html (10,244 bytes)
38. [Amps] Triode amp. Problem - Low output (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Sat, 19 Jan 2008 16:50:08 -0500; Hello, Need help in trying to isolate the problem with a homemade GS-35B amp. The amp. worked okay 6/7 January in the ARRL RTTY Round-Up. Today, the symptoms are: * SWR varies as the load capacitor (; /archives//html/Amps/2008-01/msg00117.html (8,211 bytes)
39. Re: [Amps] liquid cooled Amplifier coolant recommendations (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Fri, 16 May 2008 14:45:33 -0400; Here is a URL for a site titled: "Vacuum Tube Liquid Cooling System" by Bill Jones, K8CU,: http://www.realhamradio.com/liquid-cooling.htm He discusses cooling fluid, etc. -- 73, Mike, K4GMH _________; /archives//html/Amps/2008-05/msg00110.html (10,381 bytes)
40. Re: [Amps] RF Choke At Amp Output ?? (score: 1): Author: Mike <k4gmh@arrl.net>; Date: Sat, 22 Aug 2009 07:49:48 -0400; Hello, Unfortunately, I've had a failed blocking cap. and the choke on the output did save a bunch of ant. switching relays and other parts. The choke did work as Bill, W6WRT, said it should. The cho; /archives//html/Amps/2009-08/msg00382.html (9,877 bytes)

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