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References: [ +from:zeitlel@cpr3.navy.mil: 35 ]

Total 35 documents matching your query.

1. Re: [Amps] Utilization of old TV transformer (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Fri, 19 Mar 2010 13:52:57 -0800
With this level of Ep I would consider 811As. I believe 813s work much better closer towards 3kvdc Ep. My Heathkit Warrior HA-10 project I am working on runs about 1600vdc on the plate and I am seein
/archives//html/Amps/2010-03/msg00434.html (9,927 bytes)

2. [Amps] B & W 800 plate choke (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Fri, 19 Mar 2010 15:30:57 -0800
Does a B & W model 800 plate choke have enough inductance to work on 160? I thought it did not. Lane Ku7i _______________________________________________ Amps mailing list Amps@contesting.com http://
/archives//html/Amps/2010-03/msg00435.html (6,493 bytes)

3. Re: [Amps] 91B problem in Paraguay (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Sun, 21 Mar 2010 07:11:15 -0800
In the past when I have had similar symptoms it was the plate xmfr shorted. Both of these instances were Henry desktop amps, one a 1KD-5 and the other a 2KD-5. You need to start unloading, ie, unload
/archives//html/Amps/2010-03/msg00444.html (8,739 bytes)

4. Re: [Amps] 91B problem in Paraguay (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Sun, 21 Mar 2010 09:06:16 -0800
Hi Dale, I am curious as to why your friend's Icom rig is only seeing 30 watts out on 10 meters. VSWR problem? Sounds like the rig is protecting itself and folding back rf output. Wonder if he has tr
/archives//html/Amps/2010-03/msg00445.html (11,051 bytes)

5. Re: [Amps] B&W 800 RF choke (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Sun, 21 Mar 2010 11:43:41 -0800
Thanks John, I think the company made a model 802 choke which was more suitable for "generic" applications at 1.8 mhz. Lnae Ku7i I used one as a screen choke at 2800 KHz, in a 100 kW amplifier at wor
/archives//html/Amps/2010-03/msg00446.html (8,156 bytes)

6. [Amps] how much C in PS is too much? (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Sun, 21 Mar 2010 12:11:21 -0800
I am curious. I see some 10,000uf 450volt electrolytic caps for sale on Ebay. 8 of these would give you 3600volt capability at more or less 1250uF total capacitance. Is this too much?. Are there any
/archives//html/Amps/2010-03/msg00447.html (7,138 bytes)

7. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Sun, 21 Mar 2010 16:17:55 -0800
I believe Swan/Cubic in the 1500Z model amp used a "T" input network vs a "pi". Not too many of these were made and are somewhat rare on the used market. I had one for a short time about 15 years ago
/archives//html/Amps/2010-03/msg00492.html (10,497 bytes)

8. Re: [Amps] 2A slo blow in step start (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Sun, 21 Mar 2010 22:22:18 -0800
Good question Jim. The two Henry amps I repaired BOTH had shorted xmfr windings. This was quite some years ago when I was still a electronics tech for the Navy (now an emergency room nurse with an af
/archives//html/Amps/2010-03/msg00493.html (9,766 bytes)

9. [Amps] choke - cap filter network in PS (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 04:36:19 -0800
I have noticed that the older amps that use a choke input filter network such as the old Henry amps use a small value for the filter capacitor. My old Henry 2K used something like a 10uf oil filled c
/archives//html/Amps/2010-03/msg00494.html (7,100 bytes)

10. Re: [Amps] choke - cap filter network in PS (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 09:23:11 -0800
Carl, Noted. The 3-400Zs have been replace with 3-500Zs already. The 3B28s have been replaced with K2AW units, I think 14kv 1 amp jobs. Lane Ku7i network a Nope it will work fine as the choke sets th
/archives//html/Amps/2010-03/msg00765.html (10,124 bytes)

11. Re: [Amps] B&W PT-2500A HF Amplifier (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 15:04:32 -0800
Sigma made a 3-500Z amp in the late 70's/early 80's that was very well done. They apparently did not import many to the states b/c you rarely see them for sale. I had one about 15 yrs ago, the weak l
/archives//html/Amps/2010-03/msg00766.html (11,836 bytes)

12. Re: [Amps] B&W PT-2500A HF Amplifier (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 20:41:45 -0800
Funny you mention the Yokogawa. I bought one as a project amp a few yrs back from Mark Ke9pq. If you have never checked out his site he has neat stuff for sale. Google his call for his website. Anywa
/archives//html/Amps/2010-03/msg00767.html (13,241 bytes)

13. Re: [Amps] B&W PT-2500A HF Amplifier (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 20:42:48 -0800
Neat way to get a BIG sig out on 160 Carl!! Lane Ku7i The way I heard it, maybe from Paul, is that Fred advanced the up front money for Viewstar. With a change in the Pi-L the 2500 bandswitch arcing
/archives//html/Amps/2010-03/msg00768.html (11,901 bytes)

14. Re: [Amps] Good engineering (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 20:45:27 -0800
Jim, Especially agree with you in regards to the airdux, what a shame. Lane Ku7i ORIGINAL MESSAGE: On Mon, 22 Mar 2010 19:31:09 -0700, "Jim Thomson" <Jim.thom at wrote: right, mating maybe delicate g
/archives//html/Amps/2010-03/msg00769.html (11,759 bytes)

15. [Amps] multiplex?? (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Tue, 23 Mar 2010 21:07:26 -0800
Carl got me thinking and this is mere curiosity.......could a power divider be made to where you split your xmtr output to two separate amps and send the output of those two amps to separate antennas
/archives//html/Amps/2010-03/msg00770.html (7,135 bytes)

16. Re: [Amps] 'Good engineering' (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Thu, 25 Mar 2010 06:41:48 -0800
I would to see data on failure rates of Chinese tubes. My personal experiences over the past 15 yrs or so with them have been 100% positive. 3-500, 572B, and two 8877, all Chinese. I have no objectiv
/archives//html/Amps/2010-03/msg00771.html (10,394 bytes)

17. [Amps] finding used parts to build (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Thu, 25 Mar 2010 21:57:34 -0800
Ebay but you have to check OFTEN and in multiple categories. Sometimes they appear with "Buy-It-Now" options and can be had for a song. There was a Dahl plate xmfr listed a few weeks ago that lasted
/archives//html/Amps/2010-03/msg00772.html (14,821 bytes)

18. [Amps] must read on eham "amplifiers" forum (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Thu, 25 Mar 2010 22:38:46 -0800
There is a fantastic thread on eham dot net amplifiers forum, here is the link: http://www.eham.net/forums/Amplifiers/17323 Lane Ku7i _______________________________________________ Amps mailing list
/archives//html/Amps/2010-03/msg00773.html (7,116 bytes)

19. Re: [Amps] Transformers for HB? (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Fri, 26 Mar 2010 09:57:07 -0800
Good points Carl. AG6K used to have a nice circuit design on his web site for an inexpensive yet effective hi-pot tester. Lane Ku7i Good points Lee. Now here Im going to offer a somewaht radical depa
/archives//html/Amps/2010-03/msg00774.html (15,617 bytes)

20. Re: [Amps] Why people don't build amps. (score: 1)
Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
Date: Fri, 26 Mar 2010 10:21:34 -0800
Hi Rich, I USED to be very fluent with amp design and theory. Probably not nearly as fluent as most of the common 'posters' to this reflector but I did successfully HB some amps in the early 90's. At
/archives//html/Amps/2010-03/msg00775.html (14,497 bytes)

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