Search String: Display: Description: Sort:

Results:

References: [ +from:R@contesting.com: 541 ]

Total 541 documents matching your query.

341. Re: [Amps] AL80A (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Thu, 30 Mar 2006 08:25:10 -0800
Yes, which is the usual case because series rectifiers are like dominoes. This is a possibility -- especially with an AL-80 because it uses no glitch R in the +HV to limit fault-I during an anomaly -
/archives//html/Amps/2006-03/msg00779.html (7,846 bytes)

342. Re: [Amps] "I gotta tell this" (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Thu, 30 Mar 2006 08:29:29 -0800
Indeed, Theo. Under certain daylight conditions on 80m and 40m, I have seen a 20db gain amplifier deliver a 23db increase in Rx signal strength. Rich Measures, 805.386.3734, AG6K, www.somis.org _____
/archives//html/Amps/2006-03/msg00780.html (10,596 bytes)

343. Re: [Amps] AL80A (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Fri, 31 Mar 2006 01:57:14 -0800
It is useful to have a 240v current-limiter to insert between the amp and the mains to facilitate troubleshooting HV PS problems such as this. Such a limiter requires a 240v plug, a 240v socket, a 10
/archives//html/Amps/2006-03/msg00793.html (11,090 bytes)

344. Re: [Amps] TL922A (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sun, 2 Apr 2006 03:21:25 -0700
What is the measured R on yours, Steve? Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.
/archives//html/Amps/2006-04/msg00008.html (7,983 bytes)

345. Re: [Amps] TL922A (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sun, 2 Apr 2006 03:41:29 -0700
Thanks. That one was virtually unused. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.c
/archives//html/Amps/2006-04/msg00010.html (8,197 bytes)

346. Re: [Amps] Replacement Cap Mounting Board Henry 2k-Classic Console (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sun, 2 Apr 2006 17:22:24 -0700
I use ABS sheet stock or un-clad G-10 epoxy/fibreglas board for mounting electrolytics. I mount them with a few dabs of silicone rubber adhesive sealant on the bottom and let it cure for 24-hrs. I le
/archives//html/Amps/2006-04/msg00014.html (8,462 bytes)

347. Re: [Amps] TL922A (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Mon, 3 Apr 2006 02:02:39 -0700
Indeed, Steve, and to improve the VHF suppressor's performance, replace the Ag-plated high-Q L with an L made from a more resistive material. For example, the measured Q of a 922's orig. suppressor i
/archives//html/Amps/2006-04/msg00019.html (8,962 bytes)

348. Re: [Amps] The ongoing 4CX250B verbage! (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Tue, 4 Apr 2006 04:52:19 -0700
The military typically used 4cx250Rs because they were Ruggedized and they could withstand mechanical shock better than the plain vanilla B version. 3db is about it. As I see it, a db is a db, whethe
/archives//html/Amps/2006-04/msg00037.html (8,845 bytes)

349. Re: [Amps] The ongoing 4CX250B verbage! (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Tue, 4 Apr 2006 05:22:04 -0700
An important precaution with 250Bs is to use a shunt regulator at the screen so that reverse screen current can not cause a runaway condition that destroys the tube. Also, in HF/MF service, it's not
/archives//html/Amps/2006-04/msg00038.html (8,828 bytes)

350. Re: [Amps] The ongoing 4CX250B verbage! (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Tue, 4 Apr 2006 05:27:21 -0700
In AB1, with heavy loading (little screen-I) and 2400v on the anode, I've measured a bit better than 30db TIMD below PEP. Rich Measures, 805.386.3734, AG6K, www.somis.org ____________________________
/archives//html/Amps/2006-04/msg00039.html (10,329 bytes)

351. Re: [Amps] tubes (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Tue, 4 Apr 2006 10:04:04 -0700
With the grid wired to the cathode would there not be zero grid current? Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contes
/archives//html/Amps/2006-04/msg00047.html (11,021 bytes)

352. Re: [Amps] The ongoing 4CX250B verbage! (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Tue, 4 Apr 2006 10:21:19 -0700
There are two ways of measuring IMD, and neither one is "proper". The Ham method is relative to PEP, which is more meaningful because it is what one sees - relatively speaking - on the air with an S-
/archives//html/Amps/2006-04/msg00052.html (10,127 bytes)

353. Re: [Amps] rolling your own (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Tue, 4 Apr 2006 11:00:26 -0700
Use soft Cu tubing. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo
/archives//html/Amps/2006-04/msg00056.html (8,043 bytes)

354. Re: [Amps] small signal diodes (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Wed, 5 Apr 2006 07:47:32 -0700
hot-carrier diodes. The last I heard NEC still makes them. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com http:
/archives//html/Amps/2006-04/msg00079.html (7,235 bytes)

355. [Amps] New vacuum relays (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Fri, 7 Apr 2006 05:44:26 -0700
Gentlemen and others: We are out of surplus Kilovac HC-1s and Jennings RJ-1A high-speed vacuum relays, but this week we received a shipment of 100, new, Kilovac/Gigavac relays. The price of the new r
/archives//html/Amps/2006-04/msg00101.html (6,516 bytes)

356. Re: [Amps] New vacuum relays (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Fri, 7 Apr 2006 18:23:12 -0700
At 1600w PEP, there is about 400v-pk from the contacts to ground. At 9000VDC, from the flange to the contacts, the new Kilovac/Gigavac relays measure 0uA of leakage. As I recall, hot-switch rated rel
/archives//html/Amps/2006-04/msg00107.html (10,230 bytes)

357. [Amps] Hotswitching (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sat, 8 Apr 2006 00:44:57 -0700
Some years ago when testing a 24vdc relay, I noticed a healthy spark whenever I disconnected the 24v PS from the coil. Curiosity led me to use my oscilloscope and a 10x probe to measure reverse poten
/archives//html/Amps/2006-04/msg00109.html (7,615 bytes)

358. Re: [Amps] Hotswitching (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sat, 8 Apr 2006 08:13:00 -0700
The Apollo's battery potential was 70v, NASA did this to reduce current so they could save on conductor weight. Motor vehicles are beginning to go to higher battery potentials to save on Cu expense a
/archives//html/Amps/2006-04/msg00114.html (10,366 bytes)

359. Re: [Amps] Hotswitching (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sat, 8 Apr 2006 08:20:09 -0700
Indeed, Bill, I've seen 50%. The fix is to use a resonant-choke instead of a fixed-choke. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing
/archives//html/Amps/2006-04/msg00115.html (9,088 bytes)

360. Re: [Amps] Hotswitching (score: 1)
Author: R@contesting.com;Measures <r@somis.org>
Date: Sat, 8 Apr 2006 08:22:03 -0700
D. C. should be defined as a PS potential which lasts until the end of the contest. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list
/archives//html/Amps/2006-04/msg00116.html (8,187 bytes)

Current List: 341 - 360
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu