Search String: Display: Description: Sort:

Results:

References: [ +from:km1h@juno.com: 1318 ]

Total 1318 documents matching your query.

101. [AMPS] commercial plate choke (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Thu, 11 Mar 1999 13:14:50 -0500
Ameritron sells any of their parts. The choke used in the AL-1500, etc works well on all 9 bands. Dahl lists a few big ones but not sure about WARC's. The GDO is a big help. Witout getting into anoth
/archives//html/Amps/1999-03/msg00234.html (9,229 bytes)

102. [AMPS] Re: Tuned Input for Clipperton (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 09:11:37 -0500
On Thu, 11 Mar 1999 16:38:48 -0500 "Steve Iezzi" <siezzi@aeronix.com> writes: Answer is sometimes. Commonly available disc ceramics have poor temperature tolerance at the higher values. At the 100W l
/archives//html/Amps/1999-03/msg00248.html (10,772 bytes)

103. [AMPS] Re: Tuned Input for Clipperton (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 11:22:44 -0500
NPO disc are rarely available above 220pf or so in 500V size. The 1KV units are most likely to be Y5P or SL Mica caps, OTOH, have been historically used in tuned circuits where RF heating is expected
/archives//html/Amps/1999-03/msg00254.html (9,555 bytes)

104. [AMPS] Re: Tuned Input for Clipperton (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 10:58:34 -0500
I have never had to replace an input network silver mica in a commercial amp that was driven with <200W. Case size is important, the CD15 and CD19 500V units work very well. The smaller CD10 is not a
/archives//html/Amps/1999-03/msg00255.html (9,922 bytes)

105. [AMPS] Chokes and Dipping chokes? (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 10:47:16 -0500
On Thu, 11 Mar 1999 22:44:06 PST "Bill Murphy" <zuluhe@hotmail.com> writes: There should be no reason to use a coupling loop. The most accurate method is to hold the GDO as far away and still get an
/archives//html/Amps/1999-03/msg00256.html (10,347 bytes)

106. [AMPS] Re: Tuned Input for Clipperton (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 11:42:16 -0500
The ARCO 4200 and 4600 series are just fine at the 100-200W level Peter. The 300 series that I used to stock for higher power levels have been dropped for lack of sales and a relatively high price. 7
/archives//html/Amps/1999-03/msg00257.html (8,672 bytes)

107. [AMPS] WTB: HF directional coupler (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 15:46:28 -0500
Needed for USA FCC certification tests of the Acom 2000A. Buy, borrow or rent a 2-30MHz useable directional coupler, Bird or otherwise with a -30 to -50dB port. Others considered. Either an in-line o
/archives//html/Amps/1999-03/msg00261.html (7,132 bytes)

108. [AMPS] tetrode conversions/construction (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 16:00:45 -0500
I agree George. Did a conversion to my own 6M NCL-2000 last year and IMD improved by 6dB. Just finishing up a conversion for MR 6M, WA1OUB's, old Johnson 6N2 T-Bolt. A big improvement with Ians board
/archives//html/Amps/1999-03/msg00262.html (8,491 bytes)

109. [AMPS] Re: Solenoid Plate Chokes (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Fri, 12 Mar 1999 16:54:57 -0500
On Fri, 12 Mar 1999 13:56:39 -0600 "Roy Koeppe" <royanjoy@ncn.net> writes: An excellent hint Roy. Translated: Too little choke L to get all the RF going in the wanted direction. Thats a problem with
/archives//html/Amps/1999-03/msg00263.html (8,156 bytes)

110. [AMPS] re: commercial plate choke (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Sat, 13 Mar 1999 14:52:27 -0500
On Sat, 13 Mar 1999 06:58:12 -0800 Rich Measures <measures@vc.net> writes: Ameritron dumped a bunch of old chokes on the market a few years ago, wonder if you got one of them. Why not buy a current A
/archives//html/Amps/1999-03/msg00272.html (8,219 bytes)

111. [AMPS] Plate Solenoid Chokes (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Sun, 14 Mar 1999 08:40:30 -0500
On Sat, 13 Mar 1999 13:40:21 -0600 "Roy Koeppe" <royanjoy@ncn.net> writes: Why? I think that was an excellent post Roy. A question I have is : Is there a problem with too much of a good thing? I wind
/archives//html/Amps/1999-03/msg00281.html (10,694 bytes)

112. [AMPS] Output power 8877 (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 09:30:52 -0500
Ferrite?? Or powdered iron? What part # toroid? 6 mills what?? Grid? Thats pretty low. What is the plate current and grid current at key down A0 ? 73 Carl KM1H 10/15 meters are on a reg _____________
/archives//html/Amps/1999-03/msg00305.html (8,900 bytes)

113. [AMPS] Output power 8877 (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 08:57:14 -0500
On Sun, 14 Mar 1999 13:59:38 -0600 "Roy Koeppe" <royanjoy@ncn.net> writes: I should think not! B&W used a 3 stack of T225-2A in the PT-2500A ( 2x 3-500's at 3500V) for 160M and a seperate 2 high stac
/archives//html/Amps/1999-03/msg00306.html (11,028 bytes)

114. [AMPS] Re: Solenoid Chokes (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 09:27:59 -0500
On Sun, 14 Mar 1999 08:44:36 -0600 "Roy Koeppe" <royanjoy@ncn.net> writes: Thats what happens when you get interrupted while typing. I had meant to say placing the series resonance above 70MHz in one
/archives//html/Amps/1999-03/msg00307.html (10,936 bytes)

115. [AMPS] Chokes and Dipping chokes? (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 18:02:49 -0500
On Mon, 15 Mar 1999 11:08:18 -0700 "Richard W. Ehrhorn" <w4eto@rmii.com> writes: Nope you didnt miss a thing Dick...I just kept quiet for once and was waiting for the groupies to comment. Agreed. I u
/archives//html/Amps/1999-03/msg00325.html (10,833 bytes)

116. FW: [AMPS] 87A Ip Meter Problem (long) (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 17:32:26 -0500
On Mon, 15 Mar 1999 11:57:38 -0700 "Richard W. Ehrhorn" <w4eto@rmii.com> writes: God, I'm glad you responded Dick. I was getting a bit frustrated with the comments from outer space and maybe even bey
/archives//html/Amps/1999-03/msg00326.html (12,005 bytes)

117. [AMPS] Chokes and Dipping chokes? (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 19:03:44 -0500
On Mon, 15 Mar 1999 14:16:06 -0800 Rich Measures <measures@vc.net> writes: Not at all. The chap who suggested disconnecting the output tank was much more on track. Your method is a pure hit or miss a
/archives//html/Amps/1999-03/msg00331.html (10,835 bytes)

118. [AMPS] CW amplifier progress (well, daydream progress) -- long (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 19:50:16 -0500
On Mon, 15 Mar 1999 16:27:41 -0700 "Michael J. Baker" <K0qz@primenet.com> writes: Except the added cost/complexity of a bias and screen supply. Then what do you do years down the road with a tube tha
/archives//html/Amps/1999-03/msg00332.html (11,633 bytes)

119. [AMPS] CW amplifier progress (well, daydream progress) -- long (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Mon, 15 Mar 1999 19:23:29 -0500
On Mon, 15 Mar 1999 14:29:34 -0800 Vic Rosenthal <rakefet@rakefet.com> writes: $190 for a guaranteed full output pull is expensive ?? If you really intend to run at low voltage and 1200-1500W the tub
/archives//html/Amps/1999-03/msg00333.html (12,655 bytes)

120. [AMPS] CW amplifier progress (score: 1)
Author: km1h@juno.com (km1h@juno.com)
Date: Wed, 17 Mar 1999 09:55:28 -0500
Not a good choice for a starting project. The added cost of 5KV PS and RF components may also limit the use to many. For 1500W on CW there are many, many choices at <2500V. 73 Carl KM1H _____________
/archives//html/Amps/1999-03/msg00369.html (7,469 bytes)

Current List: 101 - 120
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu