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Total 8 documents matching your query.

1. [Amps] Small Amplifier (score: 1): Author: "David C. Hallam" <dhallam@rapidsys.com>; Date: Fri, 14 Jan 2005 11:26:18 -0500; I want to build a new small amplifier for those times when I really don't want to heat up the shack with the 5CX1500A. I have a supply of 4CX300's and sockets as well as 4CX250's and sockets. I plan; /archives//html/Amps/2005-01/msg00257.html (7,013 bytes)
2. Re: [Amps] Small Amplifier (score: 1): Author: "Will Matney" <craxd1@ezwv.com>; Date: Fri, 14 Jan 2005 12:15:31 -0500; David, I think if I wanted the ability of full legal limit power, I'd run (4) 4CX250B's in parallel. I've built a few of those and they do have the muscle. Will On Fri, 14 Jan 2005 11:26:18 -0500, Da; /archives//html/Amps/2005-01/msg00260.html (8,036 bytes)
3. Re: [Amps] Small Amplifier (score: 1): Author: Dennis12Amplify@aol.com; Date: Fri, 14 Jan 2005 13:01:39 EST; I want to build a new small amplifier for those times when I really don't Dave, The 4CX300's, (especially the 300Y's with their actual 400 watt plate dissipation), utilize twist lock shakeproof socke; /archives//html/Amps/2005-01/msg00261.html (8,039 bytes)
4. Re: [Amps] Small Amplifier (score: 1): Author: "John Finner" <finnerjf@worldnet.att.net>; Date: Fri, 14 Jan 2005 18:16:13 -0500; David If you have a supply of each, availability and replacement aren't an issue. If you stay within the Eimac class AB1 specifications (which none of us ever exceed,right?), two 4CX300's will take 2; /archives//html/Amps/2005-01/msg00263.html (7,241 bytes)
5. Re: [Amps] Small Amplifier (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Fri, 14 Jan 2005 20:18:18 -0800; I looked up both tubes in Eimac's Care and feeding of Power Grid Tubes. I was looking for the imd, as the 250 is a tad bit light. However, the 300 has exactly the same specifications, so there must b; /archives//html/Amps/2005-01/msg00269.html (7,718 bytes)
6. Re: [Amps] Small Amplifier (score: 1): Author: "carl seyersdahl" <carlseye@tampabay.rr.com>; Date: Mon, 17 Jan 2005 19:32:47 -0500; Is the 4cx250b useable in G-G?? (safely) carl / kz5ca -- Original Message -- From: "Will Matney" <craxd1@ezwv.com> To: <Amps@contesting.com> Sent: Friday, January 14, 2005 12:15 PM Subject: Re: [Amps; /archives//html/Amps/2005-01/msg00328.html (9,470 bytes)
7. Re: [Amps] Small Amplifier (score: 1): Author: R.Measures <r@somis.org>; Date: Tue, 18 Jan 2005 01:05:52 -0800; Since c. 75% of the total grid-I flows in the (2w) control-grid and c. 25% of the total grid-I flows in the (12w) screen grid, the 4cx250B hardly seems to be suited for g-g operation. However, a frie; /archives//html/Amps/2005-01/msg00336.html (10,723 bytes)
8. Re: [Amps] Small Amplifier (score: 1): Author: "Will Matney" <craxd1@ezwv.com>; Date: Tue, 18 Jan 2005 10:33:30 -0500; I have seen where some tried running the cathode driven. However they weren't straight G-G as they used some screen voltage and a bias. They don't run too hot this way in my opinion. But, they carry; /archives//html/Amps/2005-01/msg00348.html (12,105 bytes)

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