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References: [ +from:n0tt1@juno.com: 36 ]

Total 36 documents matching your query.

1. [Amps] QSK amp switching with a TS-940s (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Mon, 22 Apr 2002 03:14:30 +0100
Hi Paul, I have one of those Alpha amps...normally the a keyer keys the '86 amp and then the amp keys whatever transmitter one has. That allows the QSK circuits time to switch in the amp, thus avoidi
/archives//html/Amps/2002-04/msg00525.html (8,463 bytes)

2. [Amps] QSK amp switching with a TS-940s (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Mon, 22 Apr 2002 18:56:46 +0100
I normally don't operate SSB and the above would definitely apply to CW....HOWEVER, according to the manual, for SSB/VOX operation, the transmitter would "key" the amp. 73, Charlie, N0TT ___________
/archives//html/Amps/2002-04/msg00533.html (7,664 bytes)

3. [AMPS] Alpha 86 PIN Modification? (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Thu, 27 Dec 2001 04:54:12 +0000
hi Terry, There were some threads on that sometime back, but no specific remedies except that the '86 was just bypassed externally as I remember it. My Alpha has had all the latest mods, but the desi
/archives//html/Amps/2001-12/msg00496.html (8,348 bytes)

4. [AMPS] Chassis (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Mon, 31 Dec 2001 18:19:21 +0000
That might work for some, but not me!! Using a table saw IMHO to do that work can be very dangerous without a special jig to hold the work! It is MUCH safer to use a Radial Arm saw and CLAMP down bo
/archives//html/Amps/2001-12/msg00519.html (8,073 bytes)

5. [AMPS] Greasing roller inductor? (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Sun, 11 Nov 2001 04:41:17 +0000
Hi Gents, I have a roller inductor that is made of 3/8" wide silver-plated copper "ribbon". A shaft and the "pinch" roller that travels on it is lubricated with an unknown type of grease. The roller
/archives//html/Amps/2001-11/msg00175.html (7,180 bytes)

6. [AMPS] Cleaning aluminum variable capacitors (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Sun, 21 Oct 2001 04:21:39 -0700
Greeting gents, I bought a large variable capacitor for at a hamfest recently and the plates are somewhat corroded....something I knew about before I bought it for practically nothing. I have taken t
/archives//html/Amps/2001-10/msg00417.html (7,637 bytes)

7. [AMPS] Cleaning aluminum variable capacitors (score: 1)
Author: n0tt1@juno.com (n0tt1@juno.com)
Date: Mon, 22 Oct 2001 05:00:04 -0700
Greetings gents! Many thanks to those who commented about cleaning variable capacitor plates. Upon closer inspection, the plates are pitted...looks like a moonscape up close. So per the many suggesti
/archives//html/Amps/2001-10/msg00445.html (8,862 bytes)

8. Re: [Amps] Tl-922 plate meter protection (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Wed, 23 Apr 2008 14:27:11 +0000
Aron, A diode across the meter will usually work on sensitive meters. Connect the diode's cathode to the negative terminal so it will conduct if the voltage across the meter (and diode) exceeds about
/archives//html/Amps/2008-04/msg00270.html (7,283 bytes)

9. Re: [Amps] Chimney for GS-31B (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Thu, 1 May 2008 15:13:12 +0000
The idea was new to me Bob, and thanks for the tip. I looked it up on Google and found this site (among many others) http://www.kitchencollection.com/Temp_Products.cfm?sku=00231742 Looks like it's g
/archives//html/Amps/2008-05/msg00002.html (7,568 bytes)

10. [Amps] Higher power transmitting tubes for "portable" amps. (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Wed, 21 May 2008 22:25:39 +0000
Gents, suppose a guy wants to build a *portable* 1.5KW output amplifier. Would a 8877 be a good tube to use for that or is there something better, more rugged, etc? So, what do you guys recommend? Th
/archives//html/Amps/2008-05/msg00155.html (7,451 bytes)

11. Re: [Amps] How to safely clean an amplifier? (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Sun, 1 Jun 2008 01:08:58 +0000
Wow! Look out!! Some of the dishwashing detegents can just ruin the plates of variable capacitors and other things. Also, some detergents can darken aluminum....not a good thing. 73, Charlie, N0TT __
/archives//html/Amps/2008-05/msg00230.html (10,690 bytes)

12. Re: [Amps] Silver Strap (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Tue, 8 Jul 2008 22:40:34 +0000
If nothing else, there's a rub-on silver-plating powder available. Also, I remember seeing an article in QST on how to do your own real silver plating. I like the silver plating too, but to retard co
/archives//html/Amps/2008-07/msg00071.html (11,203 bytes)

13. Re: [Amps] Silicone Rubber Sheets (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Thu, 28 Aug 2008 15:41:35 +0000
My old Alpha 86 cooling chimneys are 1/8". But the thickness doesn't really matter for cooling as long as it forms the required shape. The thicker stuff might allow gluing/fastening it end-to-end ins
/archives//html/Amps/2008-08/msg00148.html (9,830 bytes)

14. Re: [Amps] 3-500Z glitch resistor (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Mon, 8 Sep 2008 23:17:47 +0000
It could be that the wirewound is better because it has inductance, enough to at least give a good protection circuit time to operate....just a thought. Charlie, N0TT _______________________________
/archives//html/Amps/2008-09/msg00054.html (8,315 bytes)

15. Re: [Amps] 3-500Z glitch resistor (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Mon, 8 Sep 2008 23:13:32 +0000
FWIW, and right or wrong, I've used ordinary 1 or 2 Amp 3AG fuses in the HV lead to an amplifier to protect the tubes. Of course one would NOT use an ordinary chassis mount fuse holder!! I placed th
/archives//html/Amps/2008-09/msg00055.html (8,577 bytes)

16. Re: [Amps] Vacuum relay adjustment? (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Thu, 11 Sep 2008 01:33:00 +0000
If the adjustment doesn't work as intended, you might try to reverse the coil connections....could be that the armature has become magnetized over time. Charlie, N0TT ________________________________
/archives//html/Amps/2008-09/msg00110.html (8,633 bytes)

17. Re: [Amps] HV wire (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Mon, 22 Dec 2008 16:42:59 +0000
I've always used the inner conductor of coax for that...never had a problem. 73, Charlie, N0TT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.conte
/archives//html/Amps/2008-12/msg00285.html (7,324 bytes)

18. Re: [Amps] High voltage wire (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Fri, 26 Dec 2008 03:13:31 +0000
Some years ago one of the "standard" SO239 coax connectors would short out the HV supply at the Amp. Then I switched to the HN series of connectors with RG-8 solid....never a problem after that, but
/archives//html/Amps/2008-12/msg00336.html (8,194 bytes)

19. Re: [Amps] Regulated DC heater (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Mon, 26 Jan 2009 16:09:38 +0000
Hi Gents, Just for some future info here....If I use regulated DC to power the filaments on any tube, and let's say the required voltage is 5 volts AC, shouldn't (or couldn't) the DC value be 5 x .70
/archives//html/Amps/2009-01/msg00297.html (9,022 bytes)

20. Re: [Amps] Regulated DC heater (score: 1)
Author: Missouri Guy <n0tt1@juno.com>
Date: Mon, 26 Jan 2009 17:05:47 +0000
D'Oh! You're right Bob...RMS=DC "heating" value...Shoulda thought about it some more before posting. Thanks, Charlie 73 Bob, WA2CKY Hi Gents, Just for some future info here....If I use regulated DC t
/archives//html/Amps/2009-01/msg00301.html (7,956 bytes)

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