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References: [ 11 ]

Total 11 documents matching your query.

1. [Amps] LK 500 ZA heat (score: 1)
Author: dave arruzza <>
Date: Mon, 13 Aug 2007 08:44:29 -0700 (PDT)
Hello to all? My LK 500 ZA gets very hot when operated for any length of time. I do not think that the stock fan is adequate for the job. I am planning on adding at least one fan externally to pull o
/archives//html/Amps/2007-08/msg00045.html (6,822 bytes)

2. [Amps] LK 500ZB - R2 and R3 across plate current meter (score: 1)
Author: dave arruzza <>
Date: Thu, 11 Oct 2007 10:00:01 -0700 (PDT)
Hello group, Does anyone know the values of R2 and R3 (resistor across the plate current meter and in series to ground)? The manual that I have says that these are "factory specified". Since there is
/archives//html/Amps/2007-10/msg00134.html (6,896 bytes)

3. [Amps] LK 500 ZA bandswitch (score: 1)
Author: dave arruzza <>
Date: Thu, 25 Oct 2007 11:22:33 -0700 (PDT)
Hello all... Has anyone found a replacement bandswitch for this amp? Once while talking to Bill @ Omega Electronics he told me his was drilling out the rivets on old bandswitches he had and retrofitt
/archives//html/Amps/2007-10/msg00241.html (7,132 bytes)

4. [Amps] LK 500 ZA Plate Choke (score: 1)
Author: dave arruzza <>
Date: Tue, 30 Oct 2007 19:16:55 -0700 (PDT)
What is the value of this component? The manual does not give a value. Are there any other plate chokes that can be substituted without a problem? Thanks, Dave W1CTN _________________________________
/archives//html/Amps/2007-10/msg00282.html (6,382 bytes)

5. [Amps] LK500 tank coil needed (score: 1)
Author: dave arruzza <>
Date: Sun, 9 Mar 2008 20:56:34 -0700 (PDT)
160/80/40 tank coil needed. Mine is charred around the 40 meter tap. Need a replacement. 73 Dave W1CTN -- Looking for last minute shopping deals? Find them fast with Yahoo! Search. __________________
/archives//html/Amps/2008-03/msg00107.html (6,395 bytes)

6. [Amps] LK 500 ZA Plate voltage drop (score: 1)
Author: dave arruzza <>
Date: Mon, 23 Jun 2008 18:30:04 -0700 (PDT)
Hello all... Noticed this loading the LK into a dummy load on 160 m. Plate voltage drops from 2700 volts, no load to 2000 volts under load. Is this normal? This amount of voltage drop does not occur
/archives//html/Amps/2008-06/msg00200.html (7,005 bytes)

7. [Amps] lk 500 za 160 meter padded caps (score: 1)
Author: dave arruzza <>
Date: Mon, 23 Jun 2008 18:35:39 -0700 (PDT)
Hello all... Is the 940 pf ( 2 x 470 pf ) sufficient or should I increase the value. The Load control seems to want a hair more capacitance. It is at full capacity when tuned. Thanks, Dave W1CTN ____
/archives//html/Amps/2008-06/msg00201.html (6,592 bytes)

8. [Amps] LK 500 ZA on 17 meters (score: 1)
Author: dave arruzza <>
Date: Thu, 24 Jul 2008 09:35:47 -0700 (PDT)
Hello group... I have completed all repairs on the tank circuit of my LK 500 ZA. Thanks for all the input from the group, it really made the repair a success.   I tried loading the LK on 17 meters, u
/archives//html/Amps/2008-07/msg00227.html (6,625 bytes)

9. [Amps] LK 500 ZA W/Yaesu ft 897D (score: 1)
Author: dave arruzza <>
Date: Thu, 9 Oct 2008 10:21:48 -0700 (PDT)
Hello all... Main transceiver (FT1000mp Mk5) down at W1CTN.   Backup is a FT 897D.   Does anyone know if a buffer interface is needed with my backup rig? Main rig works fine with no buffer interface.
/archives//html/Amps/2008-10/msg00046.html (6,672 bytes)

10. [Amps] L4B hints wanted (score: 1)
Author: dave arruzza <>
Date: Fri, 19 Feb 2010 09:39:50 -0800 (PST)
To all: I recently acquired a nice L4B. It is fully operational with no apparent problems.   Since the amp is a little old and components look original, I would just like some hints on what preventat
/archives//html/Amps/2010-02/msg00571.html (6,573 bytes)

11. [Amps] LK500ZA BLOWING FUSES (score: 1)
Author: dave arruzza <>
Date: Mon, 3 Jan 2011 00:41:54 -0800 (PST)
To all: When I turned the amp on today it blew the fuses. An ideas where to start looking for the culprit part/parts? 73 Dave W1CTN _______________________________________________ Amps mailing list A
/archives//html/Amps/2011-01/msg00020.html (6,263 bytes)

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