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

Results:

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

Total 561 documents matching your query.

121. [AMPS] ?: Cooling (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 7 Apr 2001 11:24:02 -0700; A friend asked me this the other day... and, since I don't know, I thought I'd ask the list. If a 4CX250 (or similar) tube is mounted with the screen ring directly grounded by means of a flange (or p; /archives//html/Amps/2001-04/msg00162.html (7,357 bytes)
122. [AMPS] ?: 2C39A's & 7289's (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 7 Apr 2001 11:41:00 -0700; A couple (of easy) questions on these parts. 1. Is the warmup time the same for a 7289, as a 2C39 -- 1 second? 2. Does a low frequency test (curve tracer) provide any useful information about the con; /archives//html/Amps/2001-04/msg00163.html (7,245 bytes)
123. [AMPS] FS: Airflow Switches (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 10 Apr 2001 11:05:23 -0700; Commercially made airflow switch assembly consisting of a V4-16 (is that a Cherry number?) microswitch (250VAC 5A contact rating) with a 1-3/8" x 1-3/4" sheet metal vane soldered to the switch arm. T; /archives//html/Amps/2001-04/msg00236.html (7,141 bytes)
124. [AMPS] FS: Parts & Equipment that may be of some use in and aroundamplifiers ... (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 10 Apr 2001 10:43:15 -0700; ** Homebrew Radio things ** Many hams build things with a large investment in time & parts that are worth far less... later. Here are some items from the estate stuff I've been selling that fit that; /archives//html/Amps/2001-04/msg00237.html (39,554 bytes)
125. [AMPS] Zener screen supplies (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 14 Apr 2001 09:29:05 -0700; On Thu, 12 Apr 2001 09:13:55 +0100 "Steve Thompson" <g8gsq@qsl.net> writes: Hello Steve & the group, I finally got a moment to read all this screen mail... The original query was about how to protect; /archives//html/Amps/2001-04/msg00328.html (9,913 bytes)
126. [AMPS] FS: Pair of large parasitic suppressors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 15 Apr 2001 10:19:58 -0700; These are constructed with 3/8" wide silver plated strip wound two turns over Globar type CX 25 ohm (20-25 watt) bulk ceramic resistors 3" long by 5/8" diameter. The strap extends 1.5" and 2.5" from; /archives//html/Amps/2001-04/msg00345.html (7,527 bytes)
127. [AMPS] Zener screen supplies (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 15 Apr 2001 10:30:16 -0700; Hi Rich, And that is for why? Puzzled, Marv WC6W * ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less; /archives//html/Amps/2001-04/msg00346.html (9,869 bytes)
128. [AMPS] Zener screen supplies (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 15 Apr 2001 20:35:21 -0700; Hi Rich, Hmmm, I think there is a bit of a misunderstanding here. Indeed, the SCR gate may only require as little as a 1/4 volt to trigger. Let's see if I can describe a circuit with only 3 (importan; /archives//html/Amps/2001-04/msg00356.html (10,797 bytes)
129. [AMPS] Zener screen supplies (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 16 Apr 2001 08:42:54 -0700; have Good Morning Rich, True, 1500A would not make for a happy gate... but, that is not the case here. I'm guessing to arrive at that figure you have de-installed the glitch R, assumed some perfect p; /archives//html/Amps/2001-04/msg00364.html (10,221 bytes)
130. [AMPS] Zener screen supplies (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 16 Apr 2001 20:54:54 -0700; Hi Rich, Well, I've never had a string short either... mostly because I've never used that method. I do protect the screen cap, in the socket on my 4CX1500, with varistors, since that part is worth m; /archives//html/Amps/2001-04/msg00375.html (9,882 bytes)
131. [AMPS] Zener screen supplies (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 17 Apr 2001 08:38:47 -0700; Did they say anything about the rather bland LCD display in what must be a $2-$3K radio? Or that bulgey front panel?? Too much influence from the car radio department; methinks. Similar to when the "; /archives//html/Amps/2001-04/msg00393.html (9,564 bytes)
132. [AMPS] FS: Heathkit Cantenna (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 30 Apr 2001 18:04:46 -0700; A bit oily on the top... and I suppose it will be best if the inside oil is ... recycled... before shipping. $20...plus shipping, if necessary, naturally. Contact: Marv WC6W 310 649 3111 (reasonable; /archives//html/Amps/2001-04/msg00589.html (6,829 bytes)
133. [AMPS] FS: Power Resistors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 30 Apr 2001 18:07:49 -0700; Dale 1.5K 225W power resistors. $8 ea. 3 available. Eight Ohmite 3K, 225 Watt power resistors mounted to a 15" x 16" fiberglass (PCB material) panel. Currently wired in parallel but, easily reconfigu; /archives//html/Amps/2001-04/msg00590.html (6,995 bytes)
134. [AMPS] FS: Fans (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 30 Apr 2001 18:24:12 -0700; These are all serious squirrel cage types Redmond Model BL-6 115 VAC .8A 60Hz 3000 RPM 4" round intake, 2.5" square output flange, weighs 6lbs. used -- $20 ILG Electric Ventilation 17-18-022A encased; /archives//html/Amps/2001-04/msg00591.html (7,468 bytes)
135. [AMPS] FS: Coax Connectors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 30 Apr 2001 18:28:19 -0700; 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) SO-239's UHF female chassis m; /archives//html/Amps/2001-04/msg00592.html (8,068 bytes)
136. [AMPS] FS: Eimac and other large tubes (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 30 Apr 2001 17:33:29 -0700; These are all used... Eimac 100T -- Filament open, for looks only -- $5 Eimac 100TH -- Fil OK, hipot checked @15KV -- $15 Heintz&Kaufmann Gammatron JAN250TH/VT220 -- Fil OK, hipot checked @15KV -- $5; /archives//html/Amps/2001-04/msg00593.html (7,551 bytes)
137. [AMPS] FS: Miscellaneous Parts that may be of some use in amplifiers (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 13 Mar 2001 12:28:10 EST; ** MISCELLANEOUS ** Large Silver Plated 6uH (calculated) coil -- 12 turns of 3/8" diameter copper tubing, 4" diameter x 9" long overall. The ends are factory finished into flat tabs w/ 3/16" mounting; /archives//html/Amps/2001-03/msg00122.html (10,933 bytes)
138. [AMPS] Vacuum Capacitor Voltage Rating (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 13 Mar 2001 12:28:10 EST; On Tue, 13 Mar 2001 04:17:54 -0800 "Michael Tope" <W4EF@dellroy.com> writes: Hi Mike, Those parts run anywhere from 7.5KV to 15KV (depending on the precision of manufacture) and should be stamped on; /archives//html/Amps/2001-03/msg00123.html (8,819 bytes)
139. [AMPS] FS: VHF Power Amp, attenuators, 10M meter R (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 15 Mar 2001 12:15:48 EST; Good Morning everyone, I have written up a few more items from the bottomless estate sale... I have some kind late '70's vintage likely Military, probably airborne, VHF power amplifier assembly for s; /archives//html/Amps/2001-03/msg00142.html (9,273 bytes)
140. [AMPS] More parts that may be of some use in amplifiers (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 16 Mar 2001 19:52:09 EST; ** Vacuum relays ** I have a couple of the old "T" style vacuum relays for sale, where the coil slips over one leg of the glass enclosed contact assembly -- One of the contacts has a Penta Labs part; /archives//html/Amps/2001-03/msg00150.html (10,141 bytes)

Current List: 121 - 140
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]