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1. [Amps] Vac Variable shipping (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Sat Jul 19 08:08:17 2003; On Wed, 16 Jul 2003 20:36:55 +0800 Alek Petkovic <vk6apk@eon.net.au> writes: vacuum apart as positioning Hi Alek, Yes, it is. Though not for "balance", for the least moment arm on the "rotor". Comet; /archives//html/Amps/2003-07/msg00100.html (8,477 bytes)
2. [Amps] FS: Carborundum type SP resistors (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Mon Jun 2 08:07:37 2003; These may be useful for glitch R's, dummy loads, antenna termination or large passive grid driven amps. Carborundum type SP resistors 30 watt parts (2.5" long) 1 ohm 65 ohms 100 watt parts (6" long); /archives//html/Amps/2003-06/msg00001.html (6,876 bytes)
3. [Amps] G-G Amplifiers With No Tuned Input. (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Sat May 3 17:37:15 2003; <snip> <snip> Hi Rich, The idea was tried 40 years ago! See "Imporved Grounded Grid Operation" by Paul Barton, Sept. 1962, 73 Magazine, pp 34-36. The author used a 6X4 (rectifier tube), with both sec; /archives//html/Amps/2003-05/msg00014.html (9,946 bytes)
4. [Amps] Transformer question (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Fri May 9 08:47:26 2003; On Wed, 7 May 2003 11:56:54 -0400 "Jeffrey Madore" <K1LE@ARRL.NET> writes: <snip> Hi Jeff, Sounds like you have a constant voltage transformer. A modern relic. The extra winding with the capacitor is; /archives//html/Amps/2003-05/msg00068.html (9,326 bytes)
5. [Amps] 4-1000A Operating position (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Thu May 29 09:35:11 2003; Hi Jim, Nope. my chassis is only 6.5 Inches Isn't the tube itself around 10" high pins to plate cap? think this will work. 73 & Good morning, Marv WC6W _______________________________________________; /archives//html/Amps/2003-05/msg00224.html (7,467 bytes)
6. [Amps] 4-1000A Transmitting tube (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Sat Apr 12 19:19:53 2003; Hi Jim, In that time period (mid-60's), Raytheon owned Penta Labs (aka Machlett) so, they would have been able to make some tubes under their own name. The Eimac tubes I've seen include a letter as p; /archives//html/Amps/2003-04/msg00124.html (7,378 bytes)
7. [Amps] Toroidal Tank Coils (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Mon Mar 3 00:23:50 2003; Hi Eric, very that should Certainly true in this venue... proceed to fuzzy assumptions... there will value is of 2KV Say WHAT!!? A typical tube amplifier with a 4KVDC plate supply should exhibit some; /archives//html/Amps/2003-03/msg00040.html (19,098 bytes)
8. [Amps] Why hasn't solid state replaced tubes? (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Mon Mar 3 12:35:36 2003; On Mon, 03 Mar 2003 10:53:29 -0500 Pete Smith <n4zr@contesting.com> writes: Hi Pete, layman), very in Your spelling is correct... rather than phonetic! :-) amateur require a who 2000A so the Doubtful; /archives//html/Amps/2003-03/msg00059.html (10,141 bytes)
9. [Amps] Why hasn't solid state replaced tubes? (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Tue Mar 4 12:28:37 2003; On Mon, 3 Mar 2003 15:09:33 -0500 "Tom Rauch" <w8ji@contesting.com> writes: Hi Tom, Well, then, the state of the art hasn't advanced at all in the last 20 years... that's about what Helge's article u; /archives//html/Amps/2003-03/msg00110.html (10,448 bytes)
10. [Amps] Solidstate amps (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Tue Mar 4 12:28:40 2003; On Mon, 3 Mar 2003 14:29:42 -0500 "Jeffrey Madore" <K1LE@arrl.net> writes: Hi Jeff, I looked those up on the web. They have the schematics on their website! The thing might be useable as a re-modulat; /archives//html/Amps/2003-03/msg00111.html (7,559 bytes)
11. [Amps] Why hasn't solid state replaced tubes? (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Tue Mar 4 12:40:25 2003; On Tue, 04 Mar 2003 07:32:09 -0500 Zyg Skrobanski <af4mp@mindspring.com> writes: Hi Zyg, Yes. 400 & 1800 Hz are used for the FCC (US) tests. If moving those frequencies a little changed the IMD, I wo; /archives//html/Amps/2003-03/msg00114.html (10,092 bytes)
12. [Amps] Arcing (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Thu Mar 6 23:19:34 2003; Hi Tom On Thu, 6 Mar 2003 10:09:16 -0500 "Tom Rauch" <w8ji@contesting.com> writes: <snip> It all sounded good until you got to here... even though it is way off topic and... I'm glad that someone rec; /archives//html/Amps/2003-03/msg00283.html (8,396 bytes)
13. [Amps] Arcing (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Fri Mar 7 12:20:52 2003; Hi, In this instance: V(Secondary) = -M * dI(Primary)/dt where M is the mutual inductance. 73, Marv WC6W * ________________________________________________________________ Sign Up for Juno Platinum I; /archives//html/Amps/2003-03/msg00302.html (8,101 bytes)
14. [Amps] Arcing (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Fri Mar 7 19:33:35 2003; On Fri, 7 Mar 2003 13:07:30 -0500 "Tom Rauch" <w8ji@contesting.com> writes: knuckle on <snip> rather at a across Good afternoon Tom & the group, The same formula works for unterminated secondaries in; /archives//html/Amps/2003-03/msg00317.html (9,386 bytes)
15. [Amps] 3KV switching power supply (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Thu Mar 13 13:47:29 2003; Hi Doug, Welllll... from looking at the specs & photo it isn't a regulated supply, just a switching inverter. Explains the poor ripple, and regulation figures. It appears that the upper right quadran; /archives//html/Amps/2003-03/msg00532.html (7,635 bytes)
16. [Amps] reading 8-10kv with a digital multimeter? (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Fri Mar 14 14:12:29 2003; trying to build an get the HV via a <snip> Hi Gary, If you are going to run a (pair of) half wave rectifier(s) from that transformer and you using any sort of capacitor on the output, you will need d; /archives//html/Amps/2003-03/msg00558.html (8,118 bytes)
17. [Amps] More parts that may be of some use... (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Sat Mar 29 14:34:30 2003; ** VHF Amplifier ** Late '70's vintage likely Military, probably airborne, VHF power amplifier assembly. It consists of 7 almost identical amplifier assemblies clustered around a central housing that; /archives//html/Amps/2003-03/msg00929.html (14,515 bytes)
18. [Amps] Semiconductors that may be of some use in amplifiers... (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Sat Mar 29 14:34:41 2003; ** SEMICONDUCTORS ** ** 50 Watt Zener Diodes; All checked on a TEK curve tracer $10 each ** House numbered TO-3 -- 5V (measured @ 2A) (one) 1N2804A 6.8V 10% NOS (a few) 1N3336B 68V 5% NOS (4 left) 1N; /archives//html/Amps/2003-03/msg00930.html (8,937 bytes)
19. [Amps] Parts that may be of some use in amplifiers... (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Sat Mar 29 14:34:58 2003; ** New Coax Connectors ** UG-560/U HN Female Panel mount connector NIB -- $10 ea 82-843-1050 Amphenol HN Female sealed round panel connector NIB -- $15 ea Kings KH-39-11 HN Female Cable connector NOS; /archives//html/Amps/2003-03/msg00931.html (12,588 bytes)
20. [Amps] Question on Ameritron amp wattmeter circuit (score: 119): Author: wc6w at juno.com (Radio WC6W); Date: Thu Feb 6 23:00:44 2003; On Thu, 6 Feb 2003 19:53:59 -0500 "Floyd Sense" <sentek@sprintmail.com> writes: question Hi Floyd, And many other places in radio world... meters, That cap is adjusted to calibrate the directional co; /archives//html/Amps/2003-02/msg00130.html (8,690 bytes)

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