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301. [AMPS] tube brand question... IMPORTANT (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Wed, 31 Jan 2001 09:48:31 -0600
China Bill Orr's handbook shows three ways to neutralize G.G. cathode driven tubes. (((73))) Phil, K5PC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrat
/archives//html/Amps/2001-01/msg00770.html (6,935 bytes)

302. [AMPS] Creative Electronics on the web? (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Wed, 31 Jan 2001 11:23:04 -0600
This is a multi-part message in MIME format. --=_NextPart_000_0369_01C08B78.2DD14640 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Anybody know if Creativ
/archives//html/Amps/2001-01/msg00775.html (8,866 bytes)

303. [AMPS] SB-220 Glitch Resistor ??? (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Fri, 1 Dec 2000 17:41:24 -0600
I agree, Marv! This is how many industrial RF generator manufacturers do it. If room is available in the P.S. section, put a 10 ohm 100 watt resistor in series with the B+ as it exits the area. Abov
/archives//html/Amps/2000-12/msg00029.html (9,684 bytes)

304. [AMPS] SB-220 Glitch Resistor ??? (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Fri, 1 Dec 2000 17:56:35 -0600
Not at all...a 10 ohm 12 watt resistor makes a great 8uh (+/-) choke and glitch resistor at the same time. (((73))) Phil, K5PC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@con
/archives//html/Amps/2000-12/msg00030.html (8,495 bytes)

305. [AMPS] AL-1200 Blower (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Wed, 6 Dec 2000 18:48:59 -0600
OR....... 1. Buy a pair of aircraft type headphones that reduce ambient noise by many DB. 2. Build the amp into the wall, or build a box around the amp and vent it to another room/outside with a big
/archives//html/Amps/2000-12/msg00104.html (9,274 bytes)

306. [AMPS] SB-200 tuning problem (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Fri, 8 Dec 2000 19:34:09 -0600
Why not set the pointer after tuning up on your most frequently used band segment? At least this will allow quick QSY there. Even a broken clock is correct twice per day. (((73))) Phil, K5PC -- FAQ o
/archives//html/Amps/2000-12/msg00143.html (7,489 bytes)

307. [AMPS] Choke series resonance clarification (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Sat, 9 Dec 2000 18:24:29 -0600
Creative Electronics uses a very "creative" approach to choke design that works 99% of the time without measuring and pruning. A 38 uh choke is installed in series with a 180 uh choke; the 180 uh cho
/archives//html/Amps/2000-12/msg00165.html (9,647 bytes)

308. [AMPS] SB220 output (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Mon, 11 Dec 2000 22:24:34 -0600
What's the big deal? If that is true, Tom is only off by one millenium! (((73))) Phil, K5PC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests
/archives//html/Amps/2000-12/msg00202.html (8,093 bytes)

309. [AMPS] [Fwd: {Collins} Tube Filament Voltages] (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Sun, 24 Dec 2000 12:07:37 -0600
Every amp I build has a filament volt meter calibrated against a true RMS meter while measuring at the tube pins. Although my line voltage is a very stable 243 volts, it is just good sense to glance
/archives//html/Amps/2000-12/msg00288.html (11,535 bytes)

310. [AMPS] Re: [Henry] On-off, or leave it on? (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Sun, 24 Dec 2000 12:26:02 -0600
Hi Chuck, and fellow reflectees, There are several things to consider here. 1. Do you have inrush protection on your filament transformer, or a transformer that is designed specifically for the tube
/archives//html/Amps/2000-12/msg00289.html (9,942 bytes)

311. [AMPS] Re: [Henry] On-off, or leave it on? (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Mon, 25 Dec 2000 09:05:00 -0600
Simple and easy solution. Go down to Wal-Mart etc. and purchase a cheap indoor/outdoor thermometer. Place the outdoor probe at the exhaust outlet. You can then tell what the normal temp is with just
/archives//html/Amps/2000-12/msg00305.html (9,275 bytes)

312. [AMPS] transformer rewinding? (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Tue, 26 Dec 2000 10:28:19 -0600
Peter Dahl Company in El Paso, TX. GL! Phil, K5PC Phil Clements 410 VZ CR 4903 Ben Wheeler, TX 75754 -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative
/archives//html/Amps/2000-12/msg00310.html (7,858 bytes)

313. [AMPS] B+ "Choke in a Can" question (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Fri, 10 Nov 2000 09:51:09 -0600
It's not really a "can." It is PVC. Resonances are eliminated in this choke by a ferrite rod inserted into the coil form. This scheme has been well documentated in ham radio publications, and used in
/archives//html/Amps/2000-11/msg00093.html (7,987 bytes)

314. [AMPS] B+ "Choke in a Can" question (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Fri, 10 Nov 2000 18:49:56 -0600
This choke, and the Harris chokes have no resonances below 30 mhz. Harris amps can operate at max. smash on any frequency from 1.8-30mhz. The B&W choke is along the same lines. It comes with a spec.
/archives//html/Amps/2000-11/msg00103.html (7,501 bytes)

315. [AMPS] AL-1500 Problem (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Tue, 14 Nov 2000 11:36:47 -0600
Replace the 8877....enjoy! Phil, K5PC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@cont
/archives//html/Amps/2000-11/msg00141.html (8,211 bytes)

316. [AMPS] grounds (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Fri, 17 Nov 2000 12:33:31 -0600
Hi Peter, I just wired my new home/shack/shop here in Texas. I will tell you how it is here. My service starts out with a 30 kva transformer. It is ground mounted, and the service entry cables are al
/archives//html/Amps/2000-11/msg00192.html (9,587 bytes)

317. [AMPS] Eimac 3CX3000A7 cathode (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Sat, 18 Nov 2000 10:48:45 -0600
filament), but the schematic for the Henry 8K Ultra clearly shows a cathode distinct from the filament. The filament transformer's secondary winding center-tap is grounded, and the cathode is biased.
/archives//html/Amps/2000-11/msg00208.html (7,578 bytes)

318. [AMPS] Tuned Input (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Sat, 18 Nov 2000 15:10:29 -0600
Almost impossible to do with the MFJ. I start out with the values in the chart in the ARRL Handbook or Orr's Handbook to get me in the ballpark. Then the amp must be fired up and the input tuned for
/archives//html/Amps/2000-11/msg00213.html (8,437 bytes)

319. [AMPS] Dentron MLA-2500/2500B Manuals (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Sat, 18 Nov 2000 19:20:28 -0600
This is a multi-part message in MIME format. --=_NextPart_000_0074_01C05194.9C28C0A0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable I had Kinko's copy 7
/archives//html/Amps/2000-11/msg00217.html (8,498 bytes)

320. [AMPS] Hi Power Connectors (score: 1)
Author: philk5pc@tyler.net (Phil Clements)
Date: Wed, 22 Nov 2000 12:59:29 -0600
The old 4-K Ultra (commercial version) using a single 8877 had an HN connector. Since that model, Henry reverted back to N's; even on the high power RF generators they make. I have not seen prices o
/archives//html/Amps/2000-11/msg00317.html (9,249 bytes)


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