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1. [Amps] Need help with HB 8877 project (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 2 Jan 2003 07:45:17 -0800
Bob, the glue for the silicone rubber chimney extensions isn't very critical -- I've used ordinary household rubber cement for this, and it works perfectly on all sorts of external anode tubes. This
/archives//html/Amps/2003-01/msg00005.html (8,707 bytes)

2. [Amps] Need help with HB 8877 project (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 2 Jan 2003 08:16:34 -0800
Hi, John, well, I posted it for you, as it's interesting info for amp builders. I've never bothered with this process, though. I've had "rubber cement" (which works in about two seconds) holding my s
/archives//html/Amps/2003-01/msg00006.html (8,213 bytes)

3. [Amps] Switch Help Needed (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 2 Jan 2003 10:53:37 -0800
Why not use a regular microswitch and float like they do in dishwasher basins? Readily available from appliance parts stores for a few bucks...of course you do need to install some sort of bracket in
/archives//html/Amps/2003-01/msg00011.html (8,556 bytes)

4. [Amps] Question: AL-80A (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 2 Jan 2003 13:59:55 -0800
I thought only the "B" model solved the known problems with the "A." Tom?? -WB2WIK/6 "If everything seems under control, you're just not going fast enough." - Mario Andretti
/archives//html/Amps/2003-01/msg00018.html (7,233 bytes)

5. [Amps] AL-572 (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Fri, 3 Jan 2003 10:50:57 -0800
/archives//html/Amps/2003-01/msg00025.html (8,296 bytes)

6. [Amps] FCC Amateur Radio Enforcement Letters (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Tue, 7 Jan 2003 09:41:48 -0800
<<ARRLWeb FCC Amateur Radio Enforcement Letters.htm>> See the very last notice. Isn't this "Sandlabs?" -- StripMime Report -- processed MIME parts -- multipart/mixed text/plain (text body -- kept) ap
/archives//html/Amps/2003-01/msg00056.html (6,472 bytes)

7. [Amps] Thunderbolt Linear amp (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Fri, 10 Jan 2003 08:20:03 -0800
/archives//html/Amps/2003-01/msg00075.html (8,803 bytes)

8. [Amps] New 4-1000A and New Amp design in works (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 16 Jan 2003 13:12:27 -0800
[Steve Katz] Amen to that. And thankfully Tri-Ex seemed to know how to make them, since thousands of those have held me up on hundreds of towers over the years.....WB2WIK/6
/archives//html/Amps/2003-01/msg00134.html (7,298 bytes)

9. [Amps] Some Suggestions Please (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Fri, 17 Jan 2003 07:38:25 -0800
Mike, I use #24 (or so) enameled "magnet wire" for typical 1 kW amps, and go a bit larger gauge, maybe #22 or #20 enameled for "lots of suds" amps. Not sure why great insulation is required, since al
/archives//html/Amps/2003-01/msg00139.html (8,414 bytes)

10. [Amps] The wire question (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Fri, 17 Jan 2003 09:22:21 -0800
"Magnet wire" is generic to insulated (usually enameled) copper wire suitable for winding motors, yokes, etc. I don't think it means anything to us in our applications at all, just so much of it is s
/archives//html/Amps/2003-01/msg00143.html (7,739 bytes)

11. [Amps] Q: Chimneys for 3-500/4-400?? (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Tue, 3 Dec 2002 11:06:10 -0800
Bear (?), I've had lots of Henry 3-500Z amps over many years, and they do use a pressurized chassis and chimneys, just like Eimac used to say to do...but the tubes didn't run cooler as a result (notw
/archives//html/Amps/2002-12/msg00044.html (12,735 bytes)

12. [Amps] Q: Chimneys for 3-500/4-400?? (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 4 Dec 2002 07:46:13 -0800
Hi Ian, Yes, it would be imprudent to operate the amplifier without its cover installed, just as it would be to operate a pressurized chassis (blower, air system socket, chimneys) without its bottom
/archives//html/Amps/2002-12/msg00068.html (9,731 bytes)

13. [Amps] 6m 2X 3-500Z amps (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 5 Dec 2002 13:33:17 -0800
I never saw it published (that I can recall, but the memory's the second thing to go!), but both Swan and Raytrack made and sold quite a lot of 2 x 3-500Z 50 MHz GG amps, and they worked, and they we
/archives//html/Amps/2002-12/msg00094.html (8,346 bytes)

14. [Amps] Help needed on 4CX250 AMP (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 16 Dec 2002 08:20:34 -0800
/archives//html/Amps/2002-12/msg00210.html (9,469 bytes)

15. [Amps] Dow-Key Coaxial Relays` (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 4 Nov 2002 14:20:29 -0800
[Steve Katz] Far as I know, that "floating" receive-side contact didn't short anything, it opened up in the XMIT mode. The "opening" of the contact provided more isolation. With enough use, it could
/archives//html/Amps/2002-11/msg00029.html (7,588 bytes)

16. [Amps] Need 25/35 mfd @ 5/6000 vdc oil filled cap (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Tue, 5 Nov 2002 13:59:38 -0800
Chris, Surplus Sales lists a 42u, 5kV metal can (new) P/N CFO 30633 in their updated listing, you might try them if nobody comes up with anything. http://www.surplussales.com -WB2WIK/6 "If everything
/archives//html/Amps/2002-11/msg00043.html (8,154 bytes)

17. [Amps] 2 x 8877 amp (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 6 Nov 2002 11:34:56 -0800
For sale: Single-tube amp, 2000W PEP, 6L6GT run upside down, immersed in recirculating cooling oil...pics available. WB2WIK/6 "If everything seems under control, you're just not going fast enough." -
/archives//html/Amps/2002-11/msg00065.html (9,334 bytes)

18. [Amps] VHF engineering (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 6 Nov 2002 14:30:20 -0800
Isn't the "BLC" amplifier already on two meters? I thought it was. If this is a 2m amp and you only want to peak it up at 144.1, that's possible by adjusting the trimmer caps on both input and output
/archives//html/Amps/2002-11/msg00077.html (7,875 bytes)

19. [Amps] RMS-PEP & 2x8877 (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 7 Nov 2002 14:53:26 -0800
[Steve Katz] Well, I don't know about Belgium, but here in the States, we rate baloons in pounds per square inch, or cubic feet, or something like that. I never saw one rated in Watts! <hi hi> Serio
/archives//html/Amps/2002-11/msg00112.html (14,752 bytes)

20. [Amps] Capasitors Question (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Fri, 8 Nov 2002 10:12:08 -0800
Because 10V of ripple in a 12V power supply is 83% ripple, but 10V ripple in a 2500V power supply is only 0.4% ripple. -WB2WIK/6 "If everything seems under control, you're just not going fast enough.
/archives//html/Amps/2002-11/msg00134.html (7,858 bytes)


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