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61. [AMPS] Shunt regulated high voltage psu (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 09:58:22 -0800; On Sun, 27 Jan 2002 09:43:47 +0000 "Ian White, G3SEK" <G3SEK@ifwtech.com> writes: <snip> unregulated Hi Ian, The IRF840 should be fine in a properly designed shunt regulator at 350V, as the transisto; /archives//html/Amps/2002-01/msg00197.html (9,356 bytes)
62. [AMPS] FS: Coils (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 10:01:39 -0800; ** 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/2002-01/msg00198.html (7,937 bytes)
63. [AMPS] 8295A any good? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 09:54:28 -0800; Hi Seli, Well, if the price is right! Sure, buy them all! Never know when you might need a spare and I don't believe that those are still made. That tube is the later version of the old Penta PL-172.; /archives//html/Amps/2002-01/msg00199.html (8,699 bytes)
64. [AMPS] FS: Coax connectors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 10:04:25 -0800; ** 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. UHF female - UHF female barrel connectors; /archives//html/Amps/2002-01/msg00200.html (7,954 bytes)
65. [AMPS] FS: Meters that may be of some us in amplifiers... (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 10:00:08 -0800; ** Panel Meters ** Alps Keiki SU-55 series 3A DC 3.4" x 2.4" rectangular NIB -- $20 100uA DC 3.4" x 2.4" rectangular NIB -- $20 15 V DC 3.4" x 2.4" rectangular NIB -- $20 Analog Devices AD2004 4&frac; /archives//html/Amps/2002-01/msg00201.html (10,811 bytes)
66. [AMPS] Anode cooler question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 11:40:11 -0800; Hi Jim, Removing the 2C39 cooler should be fairly easy. The ones I've seen either unscrew or are held on by a couple of set screws. The question is... Is there enough material to drill a hole big eno; /archives//html/Amps/2002-01/msg00204.html (8,264 bytes)
67. [AMPS] Anode cooler question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 27 Jan 2002 12:51:20 -0800; Then, they might just unscrew. -- If you do that you'll have to make some kind of threaded bushing. The inside of the loose 2C39 cooler I have here is threaded 3/8" x 16. Hmmm... my experience typica; /archives//html/Amps/2002-01/msg00206.html (7,897 bytes)
68. [AMPS] Shunt regulated high voltage psu (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 28 Jan 2002 10:56:52 -0800; On Mon, 28 Jan 2002 14:31:06 +0000 "Ian White, G3SEK" <G3SEK@ifwtech.com> writes: <snip> I've been running my 4CX1500B like that for... 15 years. The low end of the plate supply bleed (50K from 3 KV); /archives//html/Amps/2002-01/msg00231.html (10,242 bytes)
69. [AMPS] Shunt regulated high voltage psu (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 28 Jan 2002 13:36:53 -0800; On Mon, 28 Jan 2002 19:58:55 +0000 "Ian White, G3SEK" <G3SEK@ifwtech.com> writes: end source. the wires Hi Ian, The shunt regulator consists of a venerable uA723 regulator IC driving a FET. The FET i; /archives//html/Amps/2002-01/msg00235.html (13,053 bytes)
70. [AMPS] Shunt regulated high voltage psu (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 28 Jan 2002 17:32:16 -0800; <snip> at 4cx250B for Hi Rich, Well, it may be cute to tile a vectorboard with those but, it isn't economic at $16. A suitable power FET costs a $1 these days. Add another $1 for a voltage regulator; /archives//html/Amps/2002-01/msg00242.html (10,298 bytes)
71. [AMPS] found connectors but now : cable ? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 29 Jan 2002 15:15:57 -0800; <snip> transformer TVs companies). Hi Traian, Are you sure the coax shield was grounded? I've seen that arrangement used on a number of TV's but, the center conductor & shield are for the Anode V and; /archives//html/Amps/2002-01/msg00312.html (9,279 bytes)
72. [AMPS] Shunt regulated high voltage psu (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 30 Jan 2002 08:52:13 -0800; Assorted snips from the last 24 hours of the regulator discussion... On Tue, 29 Jan 2002 11:49:58 -0000 "Steve Thompson" <g8gsq@qsl.net> writes: <snip> event of of many for there's a The FET is self; /archives//html/Amps/2002-01/msg00313.html (12,026 bytes)
73. [AMPS] Shunt regulated high voltage psu (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 30 Jan 2002 10:39:53 -0800; On Wed, 30 Jan 2002 17:40:50 -0000 "Steve Thompson" <g8gsq@qsl.net> writes: <snip> Hi Steve, about 40A couple of ms. and, frequencies, plenty of a the the to The screen bypass caps would necessarily; /archives//html/Amps/2002-01/msg00322.html (11,389 bytes)
74. [AMPS] 1:3 150W wideband RF transformer (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 31 Jan 2002 09:25:13 -0800; <snip> Hi Rich, Did you ever try a (ferrite loaded) coaxial line transformer for that spot? Three sections of coax (150 ohm or as close to it as you can find) with the input ends connected in paralle; /archives//html/Amps/2002-01/msg00379.html (7,536 bytes)
75. [AMPS] found connectors but now : cable ? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 31 Jan 2002 09:21:25 -0800; Hi Traian, OK. I learn something new almost every day now! <snip> my burn), Yes, that will firm up the memory! My most modern set is about 15 years old, but it is a Sony studio monitor with a separat; /archives//html/Amps/2002-01/msg00380.html (9,146 bytes)
76. [AMPS] 1:3 150W wideband RF transformer (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 31 Jan 2002 10:41:34 -0800; that spot? in If you happen to find one of the correct dimensions... otherwise, just string a handful of beads on the coax. I have a couple of references on those... somewhere... not within handgrasp; /archives//html/Amps/2002-01/msg00386.html (7,842 bytes)
77. [AMPS] Another Stupid Question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 2 Dec 2001 10:47:36 -0800; This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --__JNP_000_6fcc.1fc3.572e Content-Type: text/plain; charset=us; /archives//html/Amps/2001-12/msg00005.html (14,508 bytes)
78. [AMPS] Another Stupid Question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 3 Dec 2001 08:01:36 -0800; of of "A dog is not just for Christmas, there may be some left for sandwiches on Boxing Day" -- Vladimir Illich Ulyanov (Lenin) 1920 73 & Good morning, Marv WC6W * ___________________________________; /archives//html/Amps/2001-12/msg00022.html (9,795 bytes)
79. [AMPS] Another Stupid Question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 3 Dec 2001 07:55:02 -0800; On Mon, 3 Dec 2001 09:11:25 +0000 "Ian White, G3SEK" <G3SEK@ifwtech.com> writes: to Hi Ian, That is perhaps better stated. I was considering that the coupling cap had become part of the network due i; /archives//html/Amps/2001-12/msg00023.html (11,392 bytes)
80. [AMPS] Another Stupid Question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 2 Dec 2001 17:11:20 -0800; This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --__JNP_000_034e.2f9f.0bde Content-Type: text/plain; charset=us; /archives//html/Amps/2001-12/msg00024.html (11,875 bytes)

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