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121. [AMPS] LK500-ZB Amp Supply ...help (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Wed, 10 Feb 1999 10:44:19 -0600; Tony, I don't have that info anymore. But put your VOM on say 5 amp scale, DC, and use it to pull up the amp's relays with. See if it kicks up violently at first, and then read the holding current. A; /archives//html/Amps/1999-02/msg00303.html (9,160 bytes)
122. [AMPS] Re: Ckts with Powdered Iron (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Thu, 11 Feb 1999 08:27:31 -0600; This is a multi-part message in MIME format. --=_NextPart_000_0085_01BE5598.5DF0BA80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable "....I placed a .02 uf; /archives//html/Amps/1999-02/msg00316.html (9,598 bytes)
123. [AMPS] Amplifier for CW (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sat, 13 Feb 1999 17:28:41 -0600; Hi Vic, I see you're displaced too. I'm from Tulare, just down the road. Here I can't find my mike either. Two amps here operate with just a trickle of idling current, about 10 ma. Have true pi-net i; /archives//html/Amps/1999-02/msg00364.html (9,617 bytes)
124. [AMPS] Amplifier for CW (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 14 Feb 1999 09:48:09 -0600; Hi Bob, My QRO PINS are courtesy of DEO, a la QSK-1500. It is an early model and has served me well for 14 years' hard duty. Have installed several mods which now make that unit bullet proof. I have; /archives//html/Amps/1999-02/msg00375.html (8,020 bytes)
125. [AMPS] AL-82 (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 17 Jan 1999 08:37:52 -0600; What does your plate current read? 73, K6XK --Original Message-- From: Mike Michon <michon@eatel.net> To: km1h@juno.com <km1h@juno.com>; amps@contesting.com <amps@contesting.com> To: <amps@contesting; /archives//html/Amps/1999-01/msg00224.html (9,153 bytes)
126. [AMPS] AL-82 (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 17 Jan 1999 08:40:54 -0600; I agree with below... I have seen it many times with warped grids in 3-500Zs, before I remedied the parasitics problems. 73, K6XK --Original Message-- From: Mark S Graalman <wb8jkr@juno.com> To: mich; /archives//html/Amps/1999-01/msg00225.html (15,119 bytes)
127. [AMPS] Adjusting fil voltage (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Tue, 19 Jan 1999 13:25:26 -0600; This is a multi-part message in MIME format. --=_NextPart_000_0011_01BE43AF.2D082980 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Measures, Orr, et al ha; /archives//html/Amps/1999-01/msg00268.html (11,485 bytes)
128. [AMPS] Spinner knob. (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Wed, 20 Jan 1999 09:58:27 -0600; This is a multi-part message in MIME format. --=_NextPart_000_006E_01BE445B.6D41E3E0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Is it for 1/4 inch sh; /archives//html/Amps/1999-01/msg00276.html (12,812 bytes)
129. [AMPS] In-rush Protection (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Wed, 20 Jan 1999 13:59:59 -0600; This is a multi-part message in MIME format. --=_NextPart_000_0018_01BE447D.2B04FAE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable -- The in-rush protecti; /archives//html/Amps/1999-01/msg00282.html (10,854 bytes)
130. [AMPS] Adjusting fil voltage (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Wed, 20 Jan 1999 15:21:14 -0600; I understand the scientific name for that is "ionic bombardment." It occurs under saturation conditions, when the electron cloud no longer exists to protect the cath from positive ions. (?) K6XK --Or; /archives//html/Amps/1999-01/msg00288.html (10,534 bytes)
131. [AMPS] 100KW induction furnace (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Wed, 20 Jan 1999 15:24:09 -0600; I once built a crystal set.... K6XK --Original Message-- From: Kf8od@aol.com <Kf8od@aol.com> To: amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: Wednesday, January 20, 1999; /archives//html/Amps/1999-01/msg00289.html (9,190 bytes)
132. [AMPS] To Ten-Tec Inc, et al, Re: Titan II (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sat, 23 Jan 1999 16:28:32 -0600; This is a multi-part message in MIME format. --=_NextPart_000_0053_01BE46ED.6A71F800 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =20 Recommendation: =20; /archives//html/Amps/1999-01/msg00341.html (11,782 bytes)
133. [AMPS] Re: Alpha grid current vs power out (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sat, 23 Jan 1999 16:34:07 -0600; This is a multi-part message in MIME format. --=_NextPart_000_0067_01BE46EE.32375380 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Don't want to insult yo; /archives//html/Amps/1999-01/msg00342.html (8,163 bytes)
134. [AMPS] Re: Alpha grid current vs power out (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 24 Jan 1999 08:44:04 -0600; John it was in response to the discussions about too high grid current readings at desired power output levels. Some folks still attempt to perform tuning functions at low power, then turn up the dri; /archives//html/Amps/1999-01/msg00359.html (8,204 bytes)
135. [AMPS] Re: Ceramic Caps in PA Tanks (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 24 Jan 1999 08:34:08 -0600; Hi Bill, Well, I experimented long and hard, testing even high-grade xmitting ceramics in the plate tuning and loading locations. They all drifted to an unacceptable degree. I presume from the tube h; /archives//html/Amps/1999-01/msg00360.html (9,130 bytes)
136. [AMPS] Re: Ceramic Caps in PA Tanks (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 24 Jan 1999 15:05:45 -0600; Lane, I have just plain scrounged them over the past 40 years. Sorry--I know it's a cop out. Rich, yes, I have used only micas on 160 meters in plate tuning rated at 8-amps. Lesser current in the PI-; /archives//html/Amps/1999-01/msg00374.html (11,133 bytes)
137. [AMPS] Triode conected Tetrodes (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Mon, 25 Jan 1999 11:52:11 -0600; Hey guys, We CW ops don't worry about IMD--connect all the grids you want together. Adjust idling current just enough so it doesn't deform the waveshape and stop worrying :-) K6XK/0 -- FAQ on WWW: ht; /archives//html/Amps/1999-01/msg00384.html (10,820 bytes)
138. [AMPS] B&W 850 in PI-L network (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Fri, 29 Jan 1999 16:24:05 -0600; Hi, Have you calculated what the loaded, operating Q actually is? You ordinarily don't want to exceed say, 13 or so. 73, K6XK 257-4155 -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions; /archives//html/Amps/1999-01/msg00582.html (8,870 bytes)
139. [AMPS] Re: paralleling power diodes (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 31 Jan 1999 11:14:26 -0600; Hi and yes, Equalizing resistors are in order. Use a fractional-ohm resistor in series with each diode to equalize forward resistance. Also, if you have plenty to choose from, try measuring forward d; /archives//html/Amps/1999-01/msg00655.html (8,422 bytes)
140. [AMPS] 3-500Z filament voltage (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 31 Jan 1999 16:38:37 -0600; Monty... For gosh' sakes, contact your power company about that outrageously high line voltage! They are supposed to keep it well within specified limits--not nearly that high. They will come out and; /archives//html/Amps/1999-01/msg00666.html (9,675 bytes)

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