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References: [ +from:dezrat@outlook.com: 433 ]

Total 433 documents matching your query.

381. Re: [Amps] Plate coupling capacitor value (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Thu, 7 Sep 2017 22:45:00 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: What's the Russian's name? Seriously, the Russian doorknob caps are hard to beat. They are made to military specs and are built like a tank. I use them i
/archives//html/Amps/2017-09/msg00039.html (7,425 bytes)

382. Re: [Amps] Plate coupling capacitor value (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sat, 9 Sep 2017 01:47:23 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: OOPS, forgot you were not in the Stone Age. :-) 73, Bill W6WRT -- This email has been checked for viruses by Avast antivirus software. https://www.avast.
/archives//html/Amps/2017-09/msg00047.html (8,710 bytes)

383. Re: [Amps] Plate coupling capacitor value (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sat, 9 Sep 2017 17:08:51 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: There is a better way to tune 10 and 12 meters despite high tube output and stray capacitance. A small coil in the anode lead will create an "L" network
/archives//html/Amps/2017-09/msg00054.html (8,950 bytes)

384. Re: [Amps] Amplifier lifetime (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Thu, 5 Oct 2017 02:32:30 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Baby your amp, run it below its ratings, don't hot switch it and watch your SWR and it should last nearly forever. Electronic parts do fail, just don't h
/archives//html/Amps/2017-10/msg00051.html (8,227 bytes)

385. Re: [Amps] Amplifier lifetime (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Fri, 6 Oct 2017 03:53:07 +0000
One thing a person can do to extend relay lifetime is to verify there is no hot switching going on. Many modern rigs have a built in delay between amp keying and actual RF output, but many older rig
/archives//html/Amps/2017-10/msg00071.html (8,895 bytes)

386. Re: [Amps] Using 813 tubes on 17 meters and above... (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sat, 2 Dec 2017 15:26:57 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: The problem of excess tube capacitance is discussed in any recent ARRL handbook in the amplifiers section. A simple coil in the anode lead will create an
/archives//html/Amps/2017-12/msg00004.html (7,278 bytes)

387. Re: [Amps] Stuck setscrews (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sat, 9 Dec 2017 01:17:28 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Allen head set screws sometimes develop a crack from the torque of the wrench. If so, they are all but impossible to get out except by drilling. I hope t
/archives//html/Amps/2017-12/msg00068.html (7,839 bytes)

388. Re: [Amps] NXP 65V LDMOS 1K80H-1800W (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sun, 24 Dec 2017 01:01:39 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: I checked the website for SPE, looking for duty cycle specs but didn't see any. Does anyone know what they are? 73, Bill W6WRT __________________________
/archives//html/Amps/2017-12/msg00136.html (8,147 bytes)

389. Re: [Amps] NXP 65V LDMOS 1K80H-1800W (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sun, 24 Dec 2017 23:16:13 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Before anyone gets too enraptured over SS amps, you might want to reconsider the advantages of tube type amps: 1. With a pi or pi-L tank, no antenna tune
/archives//html/Amps/2017-12/msg00143.html (9,280 bytes)

390. Re: [Amps] NXP 65V LDMOS 1K80H-1800W (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Mon, 25 Dec 2017 02:21:53 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: No need to buy Eimac. I have a Chinese Pride brand 8877 in my homebrew amp, been there for four years of heavy RTTY contesting with almost no problems. W
/archives//html/Amps/2017-12/msg00146.html (9,465 bytes)

391. Re: [Amps] NXP 65V LDMOS 1K80H-1800W (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Mon, 25 Dec 2017 02:27:28 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: The key word there is "future", like it or not. 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http
/archives//html/Amps/2017-12/msg00148.html (8,819 bytes)

392. Re: [Amps] NXP 65V LDMOS 1K80H-1800W (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Mon, 25 Dec 2017 10:29:12 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Cheaper only if you pay yourself zero. :-) 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http://li
/archives//html/Amps/2017-12/msg00152.html (8,244 bytes)

393. Re: [Amps] Defining CCS (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Mon, 1 Jan 2018 19:17:44 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: RTTY contesting may not be true CCS but it's not exactly ICAS either. I have had many amps rated 1500 watts ICAS (Ameritron, Command, ICOM, SPE, ACOM and
/archives//html/Amps/2018-01/msg00002.html (7,564 bytes)

394. Re: [Amps] Defining CCS (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Thu, 4 Jan 2018 07:19:20 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: The solution is not to tap them. Wind a separate coil for each band and orient them 90 degrees to each adjacent coil. Takes up only a little more space t
/archives//html/Amps/2018-01/msg00038.html (8,650 bytes)

395. Re: [Amps] Sad State of the Hobby (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Fri, 19 Jan 2018 20:55:14 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: That's true and there is a reason for that. Building a legal limit solid state amp is not for beginners. A tube amp is much easier and more forgiving of
/archives//html/Amps/2018-01/msg00097.html (8,554 bytes)

396. Re: [Amps] Sad State of the Hobby (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sat, 20 Jan 2018 00:09:39 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: His work is truly impressive but I still maintain it is a bit much for a beginner. 73, Bill W6WRT _______________________________________________ Amps ma
/archives//html/Amps/2018-01/msg00101.html (8,863 bytes)

397. Re: [Amps] Sad State of the Hobby (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sat, 20 Jan 2018 14:14:18 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Actually there is one: http://www.dishtronix.com/prometheus.html#fragment-1 But it is very expensive, about $11,000 and up depending on options. It's bey
/archives//html/Amps/2018-01/msg00108.html (7,831 bytes)

398. Re: [Amps] Contacts Cleaner (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Tue, 23 Jan 2018 13:11:10 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: WD40 works well and won't harm any plastic. 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http://l
/archives//html/Amps/2018-01/msg00129.html (7,358 bytes)

399. Re: [Amps] Commander HF 2500 (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Wed, 24 Jan 2018 17:06:55 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: If you have the time and inclination, replacing them is a good idea. Filtering a HV supply for a legal limit amp is pretty heavy duty use due to ripple c
/archives//html/Amps/2018-01/msg00135.html (8,241 bytes)

400. Re: [Amps] Commander HF 2500 (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Sun, 28 Jan 2018 19:49:50 +0000
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Excellent advice. Do NOT be tempted to use carbon resistors. They are notorious for changing value over time. Metal Oxide Film is your friend. 73, Bill W
/archives//html/Amps/2018-01/msg00143.html (8,095 bytes)

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