- 1. Re: [Amps] HN connectors (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Mon, 29 Sep 2003 08:44:06 -0600
- I've been using them for several years on my "universal" power supply to run HV to two amps, one for 6M and one on 2M. I've run as high as 6500 volts through them with no problem. I usually run 4200
- /archives//html/Amps/2003-09/msg00204.html (8,221 bytes)
- 2. Re: [Amps] H2O cooled tubes (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Thu, 30 Oct 2003 19:09:18 -0700
- John: Several years ago I ran a single 3CX100 in a cavity for 1296. The tube was/is fitted with a water cooling device. On the recommendation of "someone", I used mineral oil instead of water. The th
- /archives//html/Amps/2003-10/msg00302.html (10,334 bytes)
- 3. Re: [Amps] Jennings Vacuum Variable Capacitor (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Thu, 30 Oct 2003 19:22:01 -0700
- Rich: Could you explain this recommendation a bit further? I have 1/4" tubing in my HB 6M 8877 amp. Is this not enough? Remember, I'm really old and really dumb, so use small words. Barrie, W7ALW __
- /archives//html/Amps/2003-10/msg00303.html (7,453 bytes)
- 4. Re: [Amps] Anyone ever use a 6C21? (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Wed, 5 Nov 2003 20:00:29 -0700
- Mark: I built an AM "transmitter" using a pair of 6C21in push-pull several years ago. The tube is very much the same as the 450. Eimac specs call for 8.3 volt filament voltage, but that was for pulse
- /archives//html/Amps/2003-11/msg00067.html (8,435 bytes)
- 5. Re: [Amps] Anyone ever use a 6C21? (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Thu, 6 Nov 2003 20:18:43 -0700
- That's interesting, Rich. Previously, you mentioned a plate voltage of something on the order of 8 KV for linear service. I'm thinking that the 6C21/450 would be a "fun" 160M only amp. Given that I
- /archives//html/Amps/2003-11/msg00074.html (8,057 bytes)
- 6. Re: [Amps] Anyone ever use a 6C21? (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Fri, 7 Nov 2003 20:18:39 -0700
- Rich: Leaning on your expertise further, I have several 450THs. Would these be easier to drive, or yield greater output for given drive, in GG? 73, Barrie, W7ALW KV __________________________________
- /archives//html/Amps/2003-11/msg00088.html (9,762 bytes)
- 7. Re: [Amps] Anyone ever use a 6C21? (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Sun, 23 Nov 2003 19:42:37 -0700
- Mark: I just found an "Eimac amateur service newsletter", authored by Bill Orr, W6SAI, with the recommended ratings for the 6C21. I could scan it, or copy it for you. Interesting that the filament cu
- /archives//html/Amps/2003-11/msg00332.html (9,169 bytes)
- 8. Re: [Amps] WTB: 2000pF, 3000-5000 V vacuum variable cap. (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Sun, 30 Nov 2003 11:25:52 -0700
- Rich: Have a Jennings CVCD-3000 @ 5000 volts. 11" by 4.5". Is this what you're looking for? 73, Barrie, W7ALW _______________________________________________ Amps mailing list Amps@contesting.com htt
- /archives//html/Amps/2003-12/msg00003.html (7,705 bytes)
- 9. Re: [Amps] Home built Amp (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Fri, 12 Dec 2003 20:42:53 -0700
- In street racing (my favorite hobby), a car such as this would be called a "sleeper". 73, Barrie, W7ALW _______________________________________________ Amps mailing list Amps@contesting.com http://li
- /archives//html/Amps/2003-12/msg00220.html (8,158 bytes)
- 10. Re: [Amps] Shelf life of 3CPX800A7 tubes (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Sat, 27 Dec 2003 18:42:26 -0700
- The 3CPX is a direct drop-in replacement for the 3CX. Usually more expensive, too. Do you have a lower-than-3CX price for them? If so, let me know! The advantage of the 3CPX is it's higher plate volt
- /archives//html/Amps/2003-12/msg00420.html (8,263 bytes)
- 11. [Amps] 7/16 Din Relay (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Thu, 15 Jan 2004 20:25:08 -0700
- Anyone know of a source for QRO RF relays with 7/16 DIN connectors, suitable for 6M? Prefer 4 port, but two 3 port would do. 73, Barrie, W7ALW _______________________________________________ Amps mai
- /archives//html/Amps/2004-01/msg00150.html (6,615 bytes)
- 12. [Amps] Re: [AMRadio] request for info on using the 6C21 (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Wed, 28 Jan 2004 20:14:19 -0700
- I do. I've had several requests recently for information on that tube. I said I'd scan the spec sheet, but due to blah,blah,blah, I have not done so yet. The specs are not much different than the 450
- /archives//html/Amps/2004-01/msg00330.html (8,580 bytes)
- 13. Re: [Amps] Trouble with LK500-ZB (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Thu, 20 May 2004 20:02:52 -0600
- There are padding caps switched in on 160. And worse, if the amp is stock, they are disc ceramic. Check there. 73, Barrie. W7ALW This amp uses a pair of 3-500's in grounded grid. Power output on a Bi
- /archives//html/Amps/2004-05/msg00182.html (8,406 bytes)
- 14. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Wed, 25 Aug 2004 20:45:59 -0600
- Comes in real handy for checking header temperature on a QRO Chevy big-block to detect which sparkplug is fouled and causing a miss. 73, Barrie, W7ALW -- [This E-mail scanned for viruses by CENTRIC I
- /archives//html/Amps/2004-08/msg00323.html (13,871 bytes)
- 15. Re: [Amps] New Panasonic Tube Radio (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Mon, 6 Sep 2004 17:47:20 -0600
- There's a heap of small manufacturers building tube gear. A few companies are selling at more-or-less realistic prices, but most are selling their tube products for enormously high prices. There's a
- /archives//html/Amps/2004-09/msg00135.html (9,395 bytes)
- 16. Re: [Amps] New Panasonic Tube Radio (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Mon, 6 Sep 2004 18:02:36 -0600
- If they sound "different" then solid state then one or the other is distorted. A real amplifier reproduces 100% of what is put in to it. Tube audio is a bunch of BS for the un-educated. Oh, my! And t
- /archives//html/Amps/2004-09/msg00137.html (11,212 bytes)
- 17. Re: [Amps] New Panasonic Tube Radio (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Mon, 6 Sep 2004 18:36:29 -0600
- Yes, and an expensive novelty at that. Barrie, W7ALW -- [This E-mail scanned for viruses by CENTRIC INTERNET SERVICES] _______________________________________________ Amps mailing list Amps@contestin
- /archives//html/Amps/2004-09/msg00143.html (10,760 bytes)
- 18. Re: [Amps] My, my, what one can do with an 833A (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Mon, 22 Nov 2004 19:42:51 -0700
- I'm going to buy it. Then, put it on E-Bay with a reserve of $425,000. Somebody is bound to buy it. Barrie, W7ALW -- [This E-mail scanned for viruses by CENTRIC INTERNET SERVICES] ___________________
- /archives//html/Amps/2004-11/msg00386.html (8,625 bytes)
- 19. Re: [Amps] LK-800A (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Wed, 12 Jan 2005 20:11:05 -0700
- Sorry I don't have exact details, but . . . a fellow named Bill has an amplifier repair company named "Alpha", something. It's in 4-land. Bill was production manager for Amp Supply/International Amp
- /archives//html/Amps/2005-01/msg00236.html (8,788 bytes)
- 20. [Amps] 8171 (score: 1)
- Author: "Barrie Smith" <barrie@centric.net>
- Date: Wed, 26 Jan 2005 20:47:02 -0700
- I'm still muddling about trying to find a workable solution for getting an 8171 on 6M. The tube's internal capacitance is a big problem. I've posted this whine previously, and have not gotten any rea
- /archives//html/Amps/2005-01/msg00531.html (6,808 bytes)
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