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1. [Amps] Alpha 87A reliability problem (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Thu, 2 Jan 2003 12:32:35 -0600; Happy New Year, Rag, and all the AMPS gang! I have been running an Ameritron QSK-5 for many years with no problems. No experience here with the Alphas. I followed the instructions in the manual, and; /archives//html/Amps/2003-01/msg00008.html (9,099 bytes)
2. [Amps] Switch Help Needed (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Thu, 2 Jan 2003 12:38:58 -0600; Pardon the off-topic bandwidth, guys, but there are so many resident parts-savvy folks here that might have a source for me. I am in need of some switches that actuate when immersed in water. I am bu; /archives//html/Amps/2003-01/msg00010.html (7,022 bytes)
3. [Amps] Filament Choke Inductance (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Fri, 3 Jan 2003 12:01:51 -0600; Can anyone tell me what inductance do I need in the filament choke for a 3CX3000A7 for 80M. I built one back in the mid 90's and had to wind one around 3 ferrite 1/2" rods in order to keep the AC out; /archives//html/Amps/2003-01/msg00022.html (7,650 bytes)
4. [Amps] Bang (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 7 Jan 2003 18:09:36 -0600; We first must know the wattage and value of the glitch resistor. (((73))) Phil, K5PC; /archives//html/Amps/2003-01/msg00061.html (7,283 bytes)
5. [Amps] Bang (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 7 Jan 2003 21:44:08 -0600; The glitch resistor needs to be adjusted in ohms (20-50) and wattage (50-100) until it will not selfdestruct while the CB's or fuses in the primary of your plate transformer are shutting things down; /archives//html/Amps/2003-01/msg00064.html (7,793 bytes)
6. [Amps] NOS RCA Matched Pairs of 8122 Tubes (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Sat, 11 Jan 2003 13:41:25 -0600; I have nothing to do with this; I don't know the guy from Adam. I just found this on E-Bay. He is selling several dozen matched pairs of RCA 8122 tubes. (date codes in early '80s) As I run several of; /archives//html/Amps/2003-01/msg00090.html (6,655 bytes)
7. [Amps] Re: Chassis cleaning (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 14 Jan 2003 12:56:27 -0600; much I have quite a bit of experience with this deck. If you are going for just single-band, and can get it cleaned up per Bear's advice, that is okay. If you are planning a roller tank coil, or ban; /archives//html/Amps/2003-01/msg00115.html (7,069 bytes)
8. [Amps] Re: Chassis cleaning (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 14 Jan 2003 16:28:06 -0600; Anodized chassis have been a Henry trademark for years. If you use good lockwashers on all the bolts, no problem. (((73))) Phil, K5PC; /archives//html/Amps/2003-01/msg00117.html (6,779 bytes)
9. [Amps] relay rattings (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Fri, 17 Jan 2003 16:29:21 -0600; . This brings up another A neat scheme I "borrowed" years ago from Creative Electronics (now Amplifier Systems) Is a bit cheaper and more reliable than you suggest above. You need two chokes; one <40; /archives//html/Amps/2003-01/msg00145.html (7,617 bytes)
10. [Amps] Penta 8877's (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Sat, 18 Jan 2003 09:08:48 -0600; Penta 8877's are beginning to show up on E-Bay now. Anyone out there been running these, and care to share the track records? Thanks! Phil, K5PC -- StripMime Report -- processed MIME parts -- multipa; /archives//html/Amps/2003-01/msg00150.html (6,372 bytes)
11. [Amps] Clipperton L (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Mon, 20 Jan 2003 22:14:18 -0600; Hello, Ed... Let me know what the input impedance of your tube(s) are, and I'll run my program that gives the values for C1 L1 and C2. 1000pf is fine for blocking, but you need 8500-10,000 pf for by; /archives//html/Amps/2003-01/msg00171.html (7,138 bytes)
12. [Amps] MFJ inrush current protector? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Mon, 2 Dec 2002 13:36:25 -0600; Hello Rob, The MFJ does the job just fine. Pros: Can be used over and over, on present and future amps. Requires no mods to your equipment. Cons: You have to leave the mains switch on all the time,; /archives//html/Amps/2002-12/msg00033.html (8,352 bytes)
13. [Amps] Q: Chimneys for 3-500/4-400?? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 3 Dec 2002 12:01:49 -0600; Years ago, I would just go down to my local "Mom and Pop" hardware store and purchase chimneys for a Coleman lantern......great fit!!! I have no idea if Coleman is still making these.; /archives//html/Amps/2002-12/msg00041.html (8,658 bytes)
14. [Amps] Q: Chimneys for 3-500/4-400?? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 3 Dec 2002 13:43:29 -0600; Amen, Colin! Gone are the days when I could stop off at W.W. Grainger and pick up a nice blower to go with the chimneys for $14.95. (((73))) Phil, K5PC; /archives//html/Amps/2002-12/msg00046.html (8,403 bytes)
15. [Amps] RF103 info received! MOSFET Question (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Fri, 6 Dec 2002 17:12:14 -0600; Hi John, and all the gang.... Hard to keep up with "GE/GE-Ericsson/Ericsson/Macom" these days! I called the Dallas office last week, and they are indeed now calling themselves "Macom!" Another elect; /archives//html/Amps/2002-12/msg00129.html (6,990 bytes)
16. [Amps] Q: PIN Diode Switching for QRO? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Sat, 7 Dec 2002 13:35:40 -0600; Ameritron is about the only game left in town. I highly recommend the QSK-5. I have been using it for many years, with several different amps. A schematic should be available on the web, or from the; /archives//html/Amps/2002-12/msg00133.html (7,351 bytes)
17. [Amps] Current thru Capacitors (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Sun, 8 Dec 2002 08:47:39 -0600; Most ARRL Handbooks have a chart for this. (((73))) Phil, K5PC; /archives//html/Amps/2002-12/msg00145.html (6,628 bytes)
18. [Amps] Harris RF-124 Power Supply (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Sun, 8 Dec 2002 22:35:59 -0600; Someone wrote me last week in need of a Harris RF-124 power supply for their RF-110 amp. There is one on E-Bay now.... Go to auction #1944237915. GL! Phil, K5PC -- StripMime Report -- processed MIME; /archives//html/Amps/2002-12/msg00151.html (6,338 bytes)
19. [Amps] Possible Plate Blocking Doorknob Capacitors (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Wed, 11 Dec 2002 11:14:57 -0600; To my knowledge, Sprague does not make any RF rated door knobs. There are probably 1000's of amps sitting out there today with the old TV-type door knobs just humming away. In the "old days" we just; /archives//html/Amps/2002-12/msg00163.html (7,527 bytes)
20. [Amps] Neutral vs Ground Connection for 220 VAC (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Wed, 11 Dec 2002 22:46:53 -0600; First, we must make some assumptions. Assume your mains wiring is done by the "code." If your Henry is being wired to the main service entrance panel, the neutral and safety ground busses in the bre; /archives//html/Amps/2002-12/msg00169.html (9,527 bytes)

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