- 1. [Amps] Amp Supply LK-500 metering (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Wed, 14 Feb 2018 07:56:32 -0500
- I am working on an amp supply lk-500 that has a strange metering problem. The *plate current meter* reads in the reverse direction. If I reverse the meter leads I see current of only 100 MA and it do
- /archives//html/Amps/2018-02/msg00019.html (7,065 bytes)
- 2. [Amps] Amp Supply LK-500 metering (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Wed, 14 Feb 2018 10:57:44 -0500
- Thanks for the help but I finally found it. Someone had wired the return from the bias zener to the HV neg and not to the plate current meter so meter was not in plate current path. The rect board on
- /archives//html/Amps/2018-02/msg00024.html (7,370 bytes)
- 3. [Amps] Amp Supply LK-500 no tune manual (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Thu, 15 Feb 2018 18:51:14 -0500
- I have been restoring an Amp Supply LK-500 no tune amp but cant find a schematic or manual for anything but the standard LK-500 Does anyone have an idea where I can find a proper manual for this mode
- /archives//html/Amps/2018-02/msg00033.html (6,403 bytes)
- 4. [Amps] Amp Supply LK-500 no tune manual (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Fri, 16 Feb 2018 12:48:50 -0500
- Thanks so much that helped me locate that manual. I now have exactly what I need thanks to the helpful folks here. Thanks to all Gary K4MT _______________________________________________ Amps mailing
- /archives//html/Amps/2018-02/msg00037.html (6,903 bytes)
- 5. [Amps] Last question on Amp Supply LK-500 no tune (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Sun, 18 Feb 2018 09:19:58 -0500
- I now have the amp working perfectly with one exception. 160 meters has no output. When I looked at the schematic they had a fixed loading capacitor for 160 that says it was factory selected. Well th
- /archives//html/Amps/2018-02/msg00041.html (7,294 bytes)
- 6. [Amps] Last question on Amp Supply LK-500 no tune (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Sun, 18 Feb 2018 19:02:14 -0500
- Thanks all for the answers. I found the problem. The plate tuning cap for 160 M has 5 100PF 5 KV caps padding it. One of them was shorted out and even had a piece blown out of it. Replaced them with
- /archives//html/Amps/2018-02/msg00043.html (7,654 bytes)
- 7. [Amps] Plate Loading Padding Caps (score: 1)
- Author: Ham H <kghams@gmail.com>
- Date: Fri, 21 Dec 2018 18:43:55 -0500
- I see this has been talked about before but I have not found the information I need. I have an Amp Supply LK-500 that has bad load padding caps on 80 Meters. The factory caps were 470Pf 5 Kv N3300. I
- /archives//html/Amps/2018-12/msg00099.html (6,955 bytes)
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