Mail Archive Search: <+from:wc6w@juno.com>

Results:

References: [ +from:wc6w@juno.com: 561 ]

Total 561 documents matching your query.

101. [AMPS] Wanted: Screen Capacitors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 1 Sep 2001 07:53:15 -0700; Hi, I'm looking for a pair of 4CX250 family screen bypass rings. Either Johnson 124-113 or Eimac SK-655 will do just fine. Any out there? 73 & Good morning, Marv WC6W 310 649 3111 * _________________; /archives//html/Amps/2001-09/msg00006.html (6,907 bytes)
102. [AMPS] Bandswitch ramblings... (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 5 Sep 2001 13:55:19 -0700; Hi everyone, I've been contemplating the bandswitching for a new amplifier project with a Pi-L output network and I'm just not enthused by the traditional solutions. The input will also be tuned with; /archives//html/Amps/2001-09/msg00065.html (8,312 bytes)
103. [AMPS] Oil Filled Capacitors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 10 Jul 2001 09:11:16 -0700; Hi Ken, A 1974 GE capacitor catalog (GEP-1798A) denotes the 28F series as a design for SCR commutation, with very high reliability, high current capability and very low ESR. No de-rating would be req; /archives//html/Amps/2001-07/msg00141.html (8,785 bytes)
104. [AMPS] Vacuum Cap Voltage rating (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 16 Jul 2001 18:53:51 -0700; On Mon, 16 Jul 2001 13:46:33 -0400 "KD4LYH" <kd4lyh@earthlink.net> writes: = to = Hi Jeff, Most of the glass vacuum caps are rated for peak RF voltage at 60% of their test voltage. There are a few of; /archives//html/Amps/2001-07/msg00185.html (7,904 bytes)
105. [AMPS] Label Stock for Laser Printers (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 16 Jul 2001 18:36:12 -0700; etc homebrew I was considering something along those lines for a little thing I just built. To protect the lettering, I'm going to try printing it with mirrored text on the "backside" of the clear ma; /archives//html/Amps/2001-07/msg00186.html (8,950 bytes)
106. [AMPS] Water dielectric? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 30 Jul 2001 10:41:35 -0700; Yes! ... and that brings to mind an old thought that I never fully explored. Water has a dielectric constant of about 80! I don't know the dissipation constant or loss factor. It seems, on the surfa; /archives//html/Amps/2001-07/msg00370.html (7,973 bytes)
107. [AMPS] Water dielectric? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 31 Jul 2001 07:41:30 -0700; One more thought for the morning... A fixed plate capacitor could be made variable by immersing it in a combination of (pure) water and silicone. Those fluids won't mix. And by controlling the level; /archives//html/Amps/2001-07/msg00379.html (7,706 bytes)
108. [AMPS] Water dielectric? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 31 Jul 2001 07:33:22 -0700; Assorted combined replies... variables. Hi Pete, Yep. I've seen them too. I think used for airborne applications to avoid the de-rating that would otherwise occur at high altitudes. ** made the water; /archives//html/Amps/2001-07/msg00380.html (12,104 bytes)
109. [AMPS] ?: Aerovox type 14-36 voltage rating (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 7 Jun 2001 09:21:08 -0700; Anyone happen to know the voltage rating, either test or working, for the Aerovox type 14-36 mica (bakelite encapsulated )capacitor series? These are probably 1940-50's vintage. 73 & Thanks in advanc; /archives//html/Amps/2001-06/msg00064.html (6,928 bytes)
110. [AMPS] Data on triodes? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 9 Jun 2001 10:16:13 -0700; On Fri, 8 Jun 2001 17:52:56 +0100 "Steve Thompson" <g8gsq@qsl.net> writes: 3-500s grooves. for Hi Steve, My 1984 Eimac catalog cross references those to the 4-250A -- a tetrode. Those ceramic sockets; /archives//html/Amps/2001-06/msg00084.html (7,816 bytes)
111. [AMPS] FS: Other things (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 27 Jun 2001 10:16:11 -0700; Hi everyone, I have some other items available from the estate I've been redistributing though they aren't as applicable to the amplifier area. Such as some homebrew things, keys and keyers, crystals; /archives//html/Amps/2001-06/msg00295.html (6,923 bytes)
112. [AMPS] FS: Coax Connectors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 27 Jun 2001 10:07:45 -0700; ** Used Coax Connectors ** These are mostly used, fairly clean, (at least 80%) Amphenol parts. There are anywhere from about 4 to 25 of each type available. PL259's UHF male cable connectors (new) --; /archives//html/Amps/2001-06/msg00296.html (8,021 bytes)
113. [AMPS] FS: Coils (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 27 Jun 2001 10:11:13 -0700; ** Roller Coils ** B&W 3853 72 uH NOS but, a mite tarnished from age. $60 Johnson 229-202 18uH used good, $50 La Pointe L-0201 406-1 (identical to a Johnson 229-201) 10 uH. used good, $30 ** B&W Air; /archives//html/Amps/2001-06/msg00297.html (8,206 bytes)
114. [AMPS] FS: Capacitors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 27 Jun 2001 10:09:50 -0700; ** Air Variable Capacitors ** Johnson T9-5 minature vertical PC mount trimmers 1.9-15.7 pF, Silver Plated machined plates -- NOS 2/$1 Johnson 154-506 Dual 153pF 3KV air variable used, good ¼"; /archives//html/Amps/2001-06/msg00298.html (8,606 bytes)
115. [AMPS] FS: Test Equipment that may be of some use around amplifiers... (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 27 Jun 2001 10:06:36 -0700; ** Test Equipment -- all functional!! ** Data I/O Unipack 2, PROM progamming fixture for 29A/B programmers. $50 DataPulse (Systron Donner) Model 101, 10 MHz Pulse Generator, 10 Hz TO 10 MHz in 6 Rang; /archives//html/Amps/2001-06/msg00299.html (14,720 bytes)
116. [AMPS] RMS Power (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 27 Jun 2001 22:28:26 -0700; Hi Billy, subject there some or voltage the respectable (True) RMS power is probably best measured with a caloric instrument. If you are dealing with anything besides a single tone signal, the peak t; /archives//html/Amps/2001-06/msg00301.html (10,476 bytes)
117. [AMPS] RMS Power (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 28 Jun 2001 07:20:27 -0700; Hi Billy, No, they usually aren't. For a sine wave, average voltage is equal to .9 * RMS voltage. The factor is different for other waveshapes. Try figuring the numbers on a triangle wave for... fun.; /archives//html/Amps/2001-06/msg00306.html (9,020 bytes)
118. [AMPS] RMS Power (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 28 Jun 2001 20:50:33 -0700; then you are Marv was Hi Mike, Yes! The point being that a (continuous) sine wave (or any other sufficiently continuous waveform) whose average (absolute) value is .9 of its RMS value will read corre; /archives//html/Amps/2001-06/msg00322.html (14,455 bytes)
119. [AMPS] EER Amplifier Technique (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 16 May 2001 11:58:19 -0700; Restoration" Kahn. EER Hi Michel, One of my favorite... hobbies. There is the original reference, "Single Sideband Transmission by Envelope Elimination and Restoration" by Leonard Kahn -- pp 803-806; /archives//html/Amps/2001-05/msg00317.html (9,026 bytes)
120. [AMPS] SB220 & 4-400s (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 4 Apr 2001 11:22:48 -0700; Hi John, This is from long ago memory... First, I recall you have to wire the grid pins together (2,3 & 4) on the bottom of the sockets as only one of them has a DC return in a stock SB-220. And then; /archives//html/Amps/2001-04/msg00072.html (9,043 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]