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References: [ +from:kennedyjp@cableone.net: 13 ]

Total 13 documents matching your query.

1. Re: [Amps] GI-7b issues (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Tue, 09 Sep 2008 14:55:46 -0800
Hi Bob, I can only echo what Larry and the rest have said about cooling GI-7B's. I converted my Henry 6&2 amp from the almost not existent 8874's to GI-7B's and dedicated 2 meter amp and found that t
/archives//html/Amps/2008-09/msg00097.html (10,066 bytes)

2. Re: [Amps] Doorknob quality (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Sun, 22 Feb 2009 09:45:03 -0800
Hi Evert, Not all doorknobs caps are created equal. This may be of some help, paying close attention to Type I and Type II materials. http://www.qsl.net/i0jx/capacit.html Jim W6OUU Hello, When using
/archives//html/Amps/2009-02/msg00647.html (8,227 bytes)

3. Re: [Amps] Silver plating (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Thu, 09 Apr 2009 13:27:13 -0800
Geeeez guys and gals I was just having a little fun. I new it was untrue from the beginning when I first posted it. I see now that the ARRL( of which I am a member) has stepped into this trivial subj
/archives//html/Amps/2009-04/msg00108.html (9,869 bytes)

4. Re: [Amps] Silver plating (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Thu, 09 Apr 2009 13:32:58 -0800
Sorry about the miss post guys-meant for another reflector Geeeez guys and gals I was just having a little fun. I new it was untrue from the beginning when I first posted it. I see now that the ARRL(
/archives//html/Amps/2009-04/msg00109.html (10,243 bytes)

5. Re: [Amps] 2000Vct 1.5KVA Toroid Tube Transmitter Amp Transformer (score: 1)
Author: "Jim kennedy" <kennedyjp@cableone.net>
Date: Sun, 18 Apr 2010 16:07:48 -0700
FWIW, I used their 8T800 in a portable 1 X GI7-b 6m amp and it worked fine. Nice transformers for the price IMHO. Jim W6OUU Speaking of toroid cores and what you can do with them, what are people's o
/archives//html/Amps/2010-04/msg00548.html (8,654 bytes)

6. Re: [Amps] MRF-150 Motorola, where to buy? (score: 1)
Author: "Jim kennedy" <kennedyjp@cableone.net>
Date: Wed, 25 Aug 2010 06:26:19 -0600
RF Parts has them. http://www.rfparts.com/transistors_MRF-TP.html#MRF134 Jim W7OUU Henry radio mr ted has many wayne k8lee In a message dated 8/25/2010 4:44:38 A.M. Eastern Daylight Time, pa7 two@hot
/archives//html/Amps/2010-08/msg00367.html (7,957 bytes)

7. Re: [Amps] DELCON T210 HF Amplifier Query (score: 1)
Author: "Jim kennedy" <kennedyjp@cableone.net>
Date: Tue, 14 Sep 2010 07:29:40 -0600
I am pretty sure that is one of the amplifiers we used in the MARS station AI8UN at Ubon Thailand (1970). It did have a separated power supply. Jim W7OUU HS3ACV (1970-71) Pair of 4CX250Bs 80-10 meter
/archives//html/Amps/2010-09/msg00168.html (9,520 bytes)

8. Re: [Amps] 3-500 z...g Impressions? (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Fri, 5 Aug 2011 13:15:37 -0600
I have been using a pair of RF Parts RFP 3-500ZG's in my mono band 6m SB-220 for the past 4 years with no issues. Daily use on 6 meter WSJT meteor scatter and heavy use during the E's season and they
/archives//html/Amps/2011-08/msg00005.html (7,893 bytes)

9. Re: [Amps] 50 volt power supply (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Sun, 5 Feb 2012 09:30:07 -0700
There are many 50v switchers available. I use one of these on my 6M Larcan SSPA. It works fine. If you have 220 in the shack this could be an option. Just type in 253232-001 on E-bay and you will see
/archives//html/Amps/2012-02/msg00015.html (9,581 bytes)

10. [Amps] SB-220 Flash/Bang (score: 1)
Author: "Jim Kennedy" <kennedyjp@cableone.net>
Date: Sun, 29 Jul 2012 21:47:29 -0600
Hi guys, I need some ideas. I have an SB-220 circa early 70s and am the original builder. I converted the amp to 6m about 4 years ago at which time I installed RFP 3-500ZGs. At that time I also insta
/archives//html/Amps/2012-07/msg00387.html (8,694 bytes)

11. Re: [Amps] SB220 step start blows fuses (score: 1)
Author: Jim Kennedy <kennedyjp@cableone.net>
Date: Wed, 5 Jul 2017 09:46:30 -0400 (EDT)
My SB220 with all Harbach modifications and converted to a mono band for 6m developed that same problem a few months later. The problem ended up to be a a diode on the capacitor bank on the Harbach b
/archives//html/Amps/2017-07/msg00009.html (13,874 bytes)

12. Re: [Amps] Machlett 3-500z (score: 1)
Author: Jim Kennedy <kennedyjp@cableone.net>
Date: Mon, 24 Jul 2017 19:26:40 -0400 (EDT)
FWIW I have been running a pair of RF Parts matched 3-500's for 7 years in an SB220 converted to 6m without any issues. They still have full output. Jim W7OUU Yep. There is nothing wrong with any of
/archives//html/Amps/2017-07/msg00100.html (15,332 bytes)

13. Re: [Amps] Nylon in RF Tank Circuits (score: 1)
Author: kennedyjp <kennedyjp@cableone.net>
Date: Mon, 10 Jun 2019 06:08:11 -0600
I have not heard that caution but have experienced the same effect. Pair of 4cx250's in a 2m amp with a horseshoe tank. Melted the solid nylon shaft that tuned the plate cap. Home brew of course.JimW
/archives//html/Amps/2019-06/msg00028.html (8,515 bytes)

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