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References: [ +from:magoo@isp.ca: 19 ]

Total 19 documents matching your query.

1. [Amps] FLAKY AL-80A (score: 1)
Author: "Mr. and Mrs. Magoo" <magoo@isp.ca>
Date: Tue, 31 Mar 2009 16:19:13 -0400
I'm hoping someone can offer a suggestion on a problem I am having with a friend's amp. Initially it refused to turn on-the resistor in the step-start circuit was lumpy, discoloured and open so I rep
/archives//html/Amps/2009-03/msg00558.html (7,046 bytes)

2. [Amps] SWR & OPEN WIRE (score: 1)
Author: "Mr. and Mrs. Magoo" <magoo@isp.ca>
Date: Thu, 23 Apr 2009 19:25:43 -0400
Shortly after I was licensed in 1959 I built an 813 rig from the Handbook. My antenna was a 65 ft flat top fed with 450 ohm open wire. I had a very crude antenna coupler and my "output indicator" was
/archives//html/Amps/2009-04/msg00300.html (7,211 bytes)

3. [Amps] TRANSISTOR (score: 1)
Author: "Magoo" <magoo@isp.ca>
Date: Sun, 14 Jun 2009 08:27:50 -0400
Can anyone tell me the part number of the transistor used in the Harbach soft-key for the SB-200? It is not clear on the transistor in the amp in question. Bill, VE3NH _______________________________
/archives//html/Amps/2009-06/msg00066.html (6,240 bytes)

4. [Amps] TRANSFER SWITCH (score: 1)
Author: "Magoo" <magoo@isp.ca>
Date: Tue, 11 Aug 2009 07:07:07 -0400
Further complicating the choice of a transfer switch for generator/grid switching is the fact that generators come with either a floating neutral or neutral bonded to frame. The transfer switch you c
/archives//html/Amps/2009-08/msg00264.html (7,663 bytes)

5. [Amps] EBM Fan (score: 1)
Author: "Mr. and Mrs. Magoo" <magoo@isp.ca>
Date: Mon, 8 Feb 2010 16:35:32 -0500
I'm another one who is being driven crazy by the fan noise on my Clipperton L and would like to replace it with an EBM which, I am told, runs much more quietly. Can anyone give me an idea of how many
/archives//html/Amps/2010-02/msg00255.html (6,483 bytes)

6. [Amps] AL82 PICTURE (score: 1)
Author: "BY THE LAKE" <magoo@isp.ca>
Date: Sun, 22 Sep 2013 16:44:01 -0400
Would someone on the list happen to have an AL-82 apart and be able to take a closeup picture of the RF deck from the open side (bandswitch on left)? In doing some routine maintenance on an amp I pur
/archives//html/Amps/2013-09/msg00283.html (7,002 bytes)

7. [Amps] PARALLEL CAPS IN OUTPUT (score: 1)
Author: "Bill and Liz" <magoo@isp.ca>
Date: Wed, 4 Dec 2013 08:11:09 -0500
I read some time ago where W8JI had employed two mica "snubber" caps of 500 pf each in parallel to give added C in the loading of a TL-922 amp he was repairing. As far as I can discover, these are ra
/archives//html/Amps/2013-12/msg00019.html (6,687 bytes)

8. [Amps] WEIRD ONE! (score: 1)
Author: "Bill & Liz" <magoo@isp.ca>
Date: Sun, 20 Apr 2014 11:34:07 -0400
I just finished a GI7-B conversion of an FL2100 to 6M. Everything works fine with good output and no anti-social habits to this point. BUT there are two issues the solutions to which have eluded me s
/archives//html/Amps/2014-04/msg00180.html (7,455 bytes)

9. [Amps] WEIRD ONE SOLVED (score: 1)
Author: "Bill & Liz" <magoo@isp.ca>
Date: Thu, 24 Apr 2014 19:50:07 -0400
Thanks to Paul, WD7S, my problem has been solved. Paul kindly analyzed the original schematic of the amp and my conversion and determined that a wiring error in employing the W4ZT bias board had resu
/archives//html/Amps/2014-04/msg00218.html (6,763 bytes)

10. [Amps] AL-82 (score: 1)
Author: "Bill and Liz" <magoo@isp.ca>
Date: Sat, 13 Dec 2014 11:06:12 -0500
After I purchased my AL-82 I discovered that someone had replaced the original parasitic suppressors with the nichrome wire/3 resistors per unit type. I have had no problems but the resistors become
/archives//html/Amps/2014-12/msg00054.html (7,224 bytes)

11. [Amps] AL-82 PARASITIC SUPPRESSORS (score: 1)
Author: "Bill and Liz" <magoo@isp.ca>
Date: Sat, 13 Dec 2014 17:22:38 -0500
After some of the posts I have read in the archives I think it prudent to put the parasitic suppressors back the way they were. Ameritron wants an arm, two hands and a leg for the board on which thes
/archives//html/Amps/2014-12/msg00056.html (6,527 bytes)

12. [Amps] THE SKINNY ON MY AL-82 (score: 1)
Author: "Bill and Liz" <magoo@isp.ca>
Date: Thu, 18 Dec 2014 09:49:21 -0500
I recently tracked down the ham who had done work on my AL-82 as well as a second one purchased at the same time by another fellow who was forced by health out of ham radio. I learned that right from
/archives//html/Amps/2014-12/msg00064.html (7,213 bytes)

13. [Amps] AL80A PROBLEM (score: 1)
Author: "BY THE LAKE" <magoo@isp.ca>
Date: Sun, 18 Nov 2018 21:53:12 -0500
My AL80A began acting up a few weeks ago...nothing serious but baffling. On 160 and 80 mainly, when I tune up with about 30W drive, after a second or two key down grid current jumps by about 50 ma, p
/archives//html/Amps/2018-11/msg00063.html (7,230 bytes)

14. [Amps] SEEKING MANUAL (score: 1)
Author: magoo@isp.ca
Date: Mon, 16 Sep 2019 11:59:06 +0000
I just acquired, from the estate of an SK, a SB2010 160-6M linear manufactured by HA2SB. It arrived with no manual and I wonder if anyone on the list might have one. The web page for HA2SB appears to
/archives//html/Amps/2019-09/msg00031.html (6,552 bytes)

15. [Amps] HIGH INPUT SWR PROBLEM (score: 1)
Author: "Bill McHugh" <magoo@isp.ca>
Date: Thu, 12 Dec 2019 01:34:44 +0000
I have a commercial amp from Europe running a pair of GI7B tubes. The amp works well and loafs along at 500W output with no problems on any band, but it has a very high input SWR on all bands. Design
/archives//html/Amps/2019-12/msg00015.html (8,477 bytes)

16. [Amps] HIGH INPUT SWR ON GI7-B AMP (score: 1)
Author: "Bill McHugh" <magoo@isp.ca>
Date: Wed, 18 Dec 2019 19:29:27 +0000
Problem solved! After much gnashing of teeth and scratching of head, I discovered that the tube impedance of my GI7-Bs is actually closer to 150 ohms per tube rather than the 100 ohms which everyone
/archives//html/Amps/2019-12/msg00036.html (7,605 bytes)

17. [Amps] HIGH INPUT SWR (score: 1)
Author: Bill <magoo@isp.ca>
Date: Thu, 19 Dec 2019 12:30:34 +0000
I had a query about my finding regarding the higher than expected input impedance of the pair of GI7B tubes in an amp I have been reworking.  I did some reading and found a post from Frank, W3LPL sev
/archives//html/Amps/2019-12/msg00038.html (7,020 bytes)

18. [Amps] INFO ON PROPER GROUNDING (score: 1)
Author: "Bill McHugh" <magoo@isp.ca>
Date: Wed, 05 Feb 2020 15:50:20 +0000
Unfortunately for all of us, there is so much mis-information floating around on the web about EVERYTHING that one must be careful choosing what source(s) to believe and what to reject. Thank God the
/archives//html/Amps/2020-02/msg00045.html (7,392 bytes)

19. [Amps] MANUAL (score: 1)
Author: magoo@isp.ca
Date: Thu, 13 Aug 2020 12:21:59 +0000
Still looking for a schematic and any other technical info for a SYGN-Tech linear by HA2SB. I believe all his amps run the same control board, PS and PA configuration using 2xGI7Bs. Any suggestions m
/archives//html/Amps/2020-08/msg00041.html (6,344 bytes)

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