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Total 11 documents matching your query.

1. [Amps] amp supply lk500 za (score: 1): Author: "DAVID MILLER" <davidbmiller@sbcglobal.net>; Date: Fri, 17 Feb 2012 12:01:17 -0600; I have an used lk500za amp and although it works great the fan noise is deafing does any one have a mod for it? David Miller KB5DNR _______________________________________________ Amps mailing list A; /archives//html/Amps/2012-02/msg00213.html (6,370 bytes)
2. Re: [Amps] amp supply lk500 za (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 17 Feb 2012 16:25:36 -0500; Later models added a 350 Ohm 20W series resistor and a Hi/Lo toggle switch on the front panel. Others have added a relay to switch the speed between RX and TX. I use headphones and the noise is not e; /archives//html/Amps/2012-02/msg00214.html (7,549 bytes)
3. Re: [Amps] amp supply lk500 za (score: 1): Author: Ken Nicely <ken@nicelyweb.com>; Date: Sat, 18 Feb 2012 00:19:30 -0500; I replaced my fan with the AL80B fan from Ameritron. It is a little under capacity compared to the original. I supplement it with a 23 volt computer fan when I am contesting. Ken KE3C _______________; /archives//html/Amps/2012-02/msg00216.html (7,525 bytes)
4. Re: [Amps] amp supply lk500 za (score: 1): Author: Charlie Young <weeksmgr@hotmail.com>; Date: Sat, 18 Feb 2012 07:43:27 -0600; Just make sure the replacement blower makes enough air to keep the tube socket filament pins cool. I picked up an LK500Z at an estate sale. It came with several 3-500 tubes which had desoldered fila; /archives//html/Amps/2012-02/msg00217.html (8,344 bytes)
5. Re: [Amps] amp supply lk500 za (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sat, 18 Feb 2012 09:43:14 -0500; Ive had my 500ZC since new in 1986 and it still has the original Eimacs that have been thru lots of contests and DX pileups. For regular laid back CW and SSB I run on LO speed and havent lost anythin; /archives//html/Amps/2012-02/msg00218.html (9,884 bytes)
6. Re: [Amps] amp supply lk500 za (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Sat, 18 Feb 2012 10:32:18 -0600; How common is the LK550? What do they usually sell for? tnx Rob K5UJ _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo; /archives//html/Amps/2012-02/msg00219.html (8,017 bytes)
7. Re: [Amps] amp supply lk500 za (score: 1): Author: Richard Solomon <dickw1ksz@gmail.com>; Date: Sat, 18 Feb 2012 10:17:31 -0700; I have only seen 2 of these "in the flesh". One owner told me that the last ones out the door had the LK-500 Tank Circuit installed. I haven't seen or heard of one in several years. 73, Dick, W1KSZ _; /archives//html/Amps/2012-02/msg00220.html (9,123 bytes)
8. Re: [Amps] amp supply lk500 za (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sat, 18 Feb 2012 15:32:16 -0500; The nice thing about them is that they come with the PAC-5 and vacuum relay. Performance isnt so efficient on 10M so its often easier to pull a tube and realign the input as for a LK-500. The differe; /archives//html/Amps/2012-02/msg00222.html (9,423 bytes)
9. Re: [Amps] amp supply lk500 za (score: 1): Author: "Sam Carpenter" <Sam@OwensCommunication.com>; Date: Mon, 20 Feb 2012 08:46:11 -0500; I had one of these early in production. I ran it very very hard on 20 and 75m. As I remember, it had 4 fans with the lower tier below chassis floor to cool pins and socket underneath. I always ran fa; /archives//html/Amps/2012-02/msg00227.html (11,074 bytes)
10. Re: [Amps] amp supply lk500 za (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Mon, 20 Feb 2012 11:48:17 -0500; _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2012-02/msg00230.html (12,805 bytes)
11. Re: [Amps] amp supply lk500 za (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Mon, 20 Feb 2012 11:53:35 -0500; Many PAC-5s and 8's had a dual voltage transformer so it could be used several ways. Ive converted standard 800A's to QRO by using a couple of spare cable wires to a vacuum relay to select either vol; /archives//html/Amps/2012-02/msg00231.html (12,990 bytes)

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