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21. [AMPS] meter rebuilding (score: 1): Author: jdc@ieway.com (Jim); Date: Tue, 4 Jan 2000 19:45:02 -0800; I would check at the instrument and metering shops....I know there is one here in Spokane that repairs meters!! Consult your local phone book... 73 and good luck! Jim W7RY -- FAQ on WWW: http://www.c; /archives//html/Amps/2000-01/msg00110.html (8,880 bytes)
22. [AMPS] 3CX3000A7 (score: 1): Author: jdc@ieway.com (Jim); Date: Fri, 7 Jan 2000 20:28:17 -0800; I am thinking of building an amplifier using a 3cx3000A7. I would like to have a conversation with anyone who has built and used one... Anyone have a tube, socket or filament transformer ? Thanks and; /archives//html/Amps/2000-01/msg00184.html (6,667 bytes)
23. [AMPS] Sigma Amplifier (score: 1): Author: jdc@ieway.com (Jim); Date: Sat, 8 Jan 2000 19:54:00 -0800; Does anyone know what month and year of QST the Sigma XR-3000D was reviewed in ? What about and QST add for this amplifier.... I tried searching the ARRL web page with no success.... Maybe a ARRL mem; /archives//html/Amps/2000-01/msg00197.html (6,629 bytes)
24. [AMPS] ID small amp tube (score: 1): Author: jdc@ieway.com (Jim); Date: Mon, 17 Jan 2000 11:52:14 -0800; The 5894 is a 90 watt output at VHF (150 MHz). It is run with about 250 volts of screen and 800 or so volts of plate voltage... Used in both Motorola and GE VHF radios....Mobile and base station... -; /archives//html/Amps/2000-01/msg00371.html (8,499 bytes)
25. [AMPS] Re: Tank coils (score: 1): Author: jdc@ieway.com (Jim); Date: Sat, 22 Jan 2000 08:32:11 -0800; I simply wind my copper coils (1/4" and 3/16" and 3/8") on a round form of some kind......a 2.5 inch piece of black abs pipe......a propane cylinder........a round block of wood......... anything tha; /archives//html/Amps/2000-01/msg00475.html (10,347 bytes)
26. [AMPS] Re: Tank coils (score: 1): Author: jdc@ieway.com (Jim); Date: Sat, 22 Jan 2000 19:51:15 -0800; Sure! After they are wound then add what ever you want.....Silver plating, taps..... Thanks Terry.... Jim W7RY --Original Message-- From: Terry Gaiser - W6RU <w6ru@lightspeed.net> To: Jim <jdc@ieway.; /archives//html/Amps/2000-01/msg00482.html (13,337 bytes)
27. [AMPS] UrgentSwedish questions (score: 1): Author: jdc@ieway.com (Jim); Date: Mon, 24 Jan 2000 06:41:59 -0800; Hans....Check the small RF choke that is on the output of the tank......I had one of these chokes open up and cause the exact same problem.... Good luck! 73 Jim W7RY 160 burned. condenser? -- FAQ on; /archives//html/Amps/2000-01/msg00496.html (10,269 bytes)
28. [AMPS] Alpha 77 twin tube 8877 amp (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Sun, 5 Dec 1999 14:13:28 -0800; Item not found..... W7RY -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.co; /archives//html/Amps/1999-12/msg00040.html (7,847 bytes)
29. [AMPS] ARD-230 For sale (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Fri, 10 Dec 1999 18:52:31 -0800; I still have my Advanced Radio Devices ARD-230 amplifier for sale.... $ 2100.00 I would consider a trade for about anything.... Thanks and 73! Jim W7RY Spokane WA 509-466-7211 -- FAQ on WWW: http://w; /archives//html/Amps/1999-12/msg00102.html (6,697 bytes)
30. [AMPS] AL-1500 problem (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Mon, 13 Dec 1999 18:46:06 -0800; The antenna relay is used when the amp is in the bypass mode, If you notice the relay clicks when you change the "in/out" switch on the front panel......The rx path (and exciter path) is through the; /archives//html/Amps/1999-12/msg00139.html (8,898 bytes)
31. [AMPS] AL-1500 problem (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Mon, 13 Dec 1999 18:48:40 -0800; There is no relay on the ask board of the PIN-5 that Amaratron uses.... Just pin diodes! 73 and good luck! Jim W7RY -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.; /archives//html/Amps/1999-12/msg00140.html (9,870 bytes)
32. [AMPS] SB-200 Bandswitch (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Sun, 19 Dec 1999 20:56:01 -0800; Here is the fix. Remove the band switch from the amp. Disassemble the band switch wafers. the same length. Drill out the rivets on the wafers holding the old contacts to the wafer. Replace the contac; /archives//html/Amps/1999-12/msg00260.html (8,527 bytes)
33. [AMPS] chassis source (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Tue, 21 Dec 1999 10:43:32 -0800; I AGREE! I have had excellent service form him..... 73 and Merry Christmas to all!! Jim W7RY --Original Message-- From: Frank & Barb Ayers <lomax1@prodigy.net> To: amps@contesting.com <amps@contestin; /archives//html/Amps/1999-12/msg00327.html (8,141 bytes)
34. [AMPS] GS35b horizontal mount (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Thu, 23 Dec 1999 09:41:42 -0800; The 8877 can be mounted horizontally.......I have worked on many a FM broadcast transmitter with it mounted this way. As long as you make sure that it doesn't come out of the socket.... 73, good luck; /archives//html/Amps/1999-12/msg00364.html (7,952 bytes)
35. [AMPS] Amplifier for sale ARD-230 (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Tue, 23 Nov 1999 10:21:29 -0800; Advanced Radio Devices ARD-230 amplifier. Works great. Great condition. AUTOTUNE. Covers 10-160 meters. Puts out 1500+ watts on all bands. With lots of spare circuit boards, display, gear-boxes w/mot; /archives//html/Amps/1999-11/msg00445.html (7,053 bytes)
36. [AMPS] Band Switch arcing SB-1000/AL-80 (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Wed, 24 Nov 1999 13:58:47 -0800; I know there was a thread about this a bit ago........But....... The arcing that I am having is in the front wafer of the switch. This wafer just switches the tuning cap padder for 160 meters. The ca; /archives//html/Amps/1999-11/msg00472.html (8,354 bytes)
37. [AMPS] Band Switch arcing SB-1000/AL-80 (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Thu, 25 Nov 1999 09:50:23 -0800; Well...........Looks like the amp is fixed....When I first started, the 2.5 Mh choke that is across the output of the tank (prevents high voltage from appearing on antenna if the DC blocking caps sho; /archives//html/Amps/1999-11/msg00483.html (9,812 bytes)
38. [AMPS] 220K resistor vs choke and sound card tone generator program... (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Fri, 26 Nov 1999 09:09:33 -0800; I have built amplifiers with out the "choke" or resistor on the output of the tank. After a key-down, the load cap will sit there and snap a few times. Discharging the tank circuit. However, the disc; /archives//html/Amps/1999-11/msg00501.html (10,495 bytes)
39. [AMPS] Re: RF Switches (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Fri, 26 Nov 1999 18:58:37 -0800; Speaking of band switches, anyone know who makes the band switches that Alpha and Ten-Tec use in there amps ? I notice they are the same manufacture.... Thanks and 73! Jim W7RY --Original Message-- F; /archives//html/Amps/1999-11/msg00519.html (10,006 bytes)
40. [AMPS] 4CX1600B Amplifier in new handbook (score: 1): Author: Jim" <jdc@ieway.com (Jim); Date: Sat, 27 Nov 1999 23:54:55 -0800; Its been kinda "dry" here lately................ Lets have a new discussion................... I am looking at the new 2000 ARRL Handbook. There is an amplifier construction project in chapter 13. Th; /archives//html/Amps/1999-11/msg00521.html (9,670 bytes)

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