- 1. Re: [Amps] Stripping Litz (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Tue, 16 May 2017 17:56:35 -0400
- Lowe's or Home Depot have paint strippers with methylene chloride in them... just used some of it. <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_cont
- /archives//html/Amps/2017-05/msg00160.html (8,488 bytes)
- 2. Re: [Amps] Impedance Match Calculator (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Sat, 2 Feb 2019 16:37:27 -0500
- Any Smith Chart program will help you visualize it. From load side, shunt 360 pF then series 1100 pF. 73, Dave N3AC _______________________________________________ Amps mailing list Amps@contesting.c
- /archives//html/Amps/2019-02/msg00010.html (8,487 bytes)
- 3. Re: [Amps] Impedance Match Calculator (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Mon, 4 Feb 2019 08:49:27 -0500
- Correction: In my haste (yikes!), I erred and grabbed the first 2 values for X+jY... ...so in hindsight, from the load side a series inductor or transmission line and then shunt capacitor works easil
- /archives//html/Amps/2019-02/msg00017.html (9,122 bytes)
- 4. [Amps] Alpha 87A Fault 20 Problems and General Questions (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Sat, 9 Feb 2019 15:24:05 -0500
- When powering up, we get a Fault 20. After clearing with Stby/Operate, it recurs from from time to time and switches the amp to Standby. The unit has date code 9408, s/n 0614. Software is version UPX
- /archives//html/Amps/2019-02/msg00027.html (8,527 bytes)
- 5. [Amps] Alpha 87A Fault 20 Problems and General Questions (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Sun, 10 Feb 2019 08:57:22 -0500
- When powering up, we get a Fault 20. After clearing with Stby/Operate, it recurs from from time to time and switches the amp to Standby. The unit has date code 9408, s/n 0614. Software is version UPX
- /archives//html/Amps/2019-02/msg00030.html (9,348 bytes)
- 6. Re: [Amps] Alpha 87A Fault 20 Problems and General Questions (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Mon, 11 Feb 2019 07:39:20 -0500
- Sounds like it's almost certainly oxidized connectors... thanks for all the help, and also pointing out the Yahoo reflector. We have some "snake oil", and will work over the contacts this morning. re
- /archives//html/Amps/2019-02/msg00032.html (10,633 bytes)
- 7. Re: [Amps] Second Fan for 87A (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Wed, 27 Feb 2019 18:40:24 -0500
- Jim, We just went through this with a friend's 87A. Best resources were amps on contesting.com and alpha 87a on yahoo.com which had lots of info but seems inactive now. Here are my notes: 1. An Alpha
- /archives//html/Amps/2019-02/msg00059.html (9,911 bytes)
- 8. Re: [Amps] TL-922 FAN REPLACEMENT (score: 1)
- Author: Dave Haring <dcharing@gmail.com>
- Date: Thu, 11 Apr 2019 11:21:35 -0400
- fans: I'd suggest picking something from Orion, supplied by Arrow (free shipping, too). Use the 80-120? VAC selections, maybe a little more power than what yours does or you've seen posted... the hig
- /archives//html/Amps/2019-04/msg00033.html (10,921 bytes)
- 9. Re: [Amps] Distilled water in a dummy load ? (score: 1)
- Author: Haring family <dcharing@gmail.com>
- Date: Mon, 22 Feb 2021 12:43:30 -0500
- Jim, Not speaking to corrosion, but to heat exchange: the water clearly will be better, presuming you have corrosion control managed (i.e. no fouling/corrosion products which reduce heat transfer. re
- /archives//html/Amps/2021-02/msg00029.html (10,505 bytes)
- 10. [Amps] back wafer for band switch on SB220 (score: 1)
- Author: Haring family <dcharing@gmail.com>
- Date: Sat, 14 Aug 2021 06:48:43 -0400
- I recently got a 220 with vaporized contacts on the 10 and 15M positions. Does anybody have a spare one which they would sell? Or a source? thanks, Dave N3AC Forest, VA ______________________________
- /archives//html/Amps/2021-08/msg00034.html (6,432 bytes)
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