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Total 231 documents matching your query.

221. [AMPS] PT-1000-K1Mh (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 25 Mar 98 09:02:42 -0600
Ok, so submit an experience. Frankly, I love the discussion regardless of who is right or wrong. I am learning a lot! 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A life lived in f
/archives//html/Amps/1998-03/msg00407.html (8,849 bytes)

222. [AMPS] Re: Formula for GG Input Impedance (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 25 Mar 98 14:24:44 -0600
Phil, What you are saying above is correct. Z=P/(I^2). It follows easily from Ohms Law. However, someone did try to say that as you decrease power, impedance stays the same becuase current also decr
/archives//html/Amps/1998-03/msg00410.html (9,136 bytes)

223. [AMPS] Statements (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 25 Mar 98 18:35:45 -0600
Phil, voltage/current/power stuff people incorrect This statement IS incorrect no matter how you slice it. Impedance is NOT the ratio of P/I. It's the ratio of P/(I^2). Since then you pointed this ou
/archives//html/Amps/1998-03/msg00419.html (7,270 bytes)

224. [AMPS] Cathode Current (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 25 Mar 98 19:05:09 -0600
Ok, there has been a LOT of discussion lately about tube input impedance in a grounded grid amp. So some of you are tired of it, big deal. I belong to this mail reflector becuase I am trying to impro
/archives//html/Amps/1998-03/msg00420.html (7,876 bytes)

225. [AMPS] Penta PL-175A (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Wed, 25 Mar 98 22:13:46 -0600
Howdy all, I have a couple of Penta PL-175As that were pulled from an old Johnson-Viking Invader. Is this tube a replacement for the 3-500z? It sure looks a lot like it. If not, can someone point me
/archives//html/Amps/1998-03/msg00425.html (6,994 bytes)

226. [AMPS] Plate RFC choke design (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Thu, 26 Mar 98 22:32:58 -0600
Kevin, Plate chokes are an art as I have learned. The biggest problem is the doggone resonances. My PA had a Hammond 1521 in it and I couldn't figure out why it kept blowing up on 10m. Well, after c
/archives//html/Amps/1998-03/msg00439.html (11,576 bytes)

227. [AMPS] Plate RFC choke design (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Fri, 27 Mar 98 07:15:25 -0600
Mine are both at right angles to the tank coil and they are about 6 inches apart. They are not at right angles to each other though. They both run the same direction. One is mounted a little higher
/archives//html/Amps/1998-03/msg00446.html (8,913 bytes)

228. [AMPS] 4-1000 IDLING CURRENT (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Sun, 29 Mar 98 23:12:59 -0600
Well, Bob, I have a 4-1000 amp that I've been struggling with too! Here's what I can figure out: I am assuming you are running grounded-grid. Idling plate current at 4 KV according to Eimac's specs
/archives//html/Amps/1998-03/msg00476.html (10,639 bytes)

229. [AMPS] 4-1000 IDLING CURRENT (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Sun, 29 Mar 98 23:18:46 -0600
Accoring to Eimac specs, the idling current should be 110 mA at 5000 V, so I think 150 is too high at 4600. I wouldn't put more than 6 kV on the anode of a 4-1000A. 6 KV is the maximum that Eimac sp
/archives//html/Amps/1998-03/msg00477.html (9,074 bytes)

230. [AMPS] 4-1000 IDLING CURRENT (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Mon, 30 Mar 98 14:52:27 -0600
Unfortunately this seems to always be the case! Except you forgot efficiency. One can have poor efficiency, good output power and good IM (class A). 73! Jon KE9NA -- Jon Ogden jono@webspun.com www.q
/archives//html/Amps/1998-03/msg00487.html (8,034 bytes)

231. [AMPS] 4-1000A Specs (score: 1)
Author: jono@webspun.com (Jon Ogden)
Date: Tue, 31 Mar 98 16:58:23 -0600
For those of you who were curious about the Eimac specs I posted on the 4-1000A, I have checked and the numbers I gave are definitely for Grounded-Grid operation. So I'd still like to know if anyone
/archives//html/Amps/1998-03/msg00500.html (6,759 bytes)

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