Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+3cx400A7\s+and\s+8877\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+3cx400A7\s+and\s+8877\s*$/: 7 ]

Total 7 documents matching your query.

1. [Amps] 3cx400A7 and 8877 (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Sat, 21 May 2011 02:54:45 +0000 (UTC); Hey gang, I've got a new toy I'm wondering your opinions. I got two new RF decks, one based on an 8877 and one based on a 8874. Unfortunately I don't have a power supply for either one. I do have; /archives//html/Amps/2011-05/msg00178.html (7,972 bytes)
2. Re: [Amps] 3cx400A7 and 8877 (score: 1): Author: TexasRF@aol.com; Date: Sat, 21 May 2011 08:26:58 EDT; Hi Paul, your understanding of the buck/boost windings is right on the money. Ameritron amplifiers have used this technique for years. The voltage tripler idea seems less feasible considering the poo; /archives//html/Amps/2011-05/msg00180.html (8,461 bytes)
3. Re: [Amps] 3cx400A7 and 8877 (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Sun, 22 May 2011 00:51:03 +0000 (UTC); Thanks for the input, it's really helpful. With respect to the 8874. At first I was under the impression that the 8874 and the 3cx800a7 were interchangeable except for the heater voltage, the 8874 b; /archives//html/Amps/2011-05/msg00184.html (8,122 bytes)
4. Re: [Amps] 3cx400A7 and 8877 (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Sat, 21 May 2011 21:15:24 -0400; Not by a long shot! The 8874 is also known as a 3CX400A7 it is rated for only *half* the plate dissipation as the 3CX800A7. The 3CX800A7 also has significantly higher input capacitance in grounded g; /archives//html/Amps/2011-05/msg00185.html (9,845 bytes)
5. Re: [Amps] 3cx400A7 and 8877 (score: 1): Author: "Roger (sub1)" <sub1@rogerhalstead.com>; Date: Sat, 21 May 2011 21:39:32 -0400; But going the other direction except for the filament voltage the 3CX800 is a drop in replacement for the 8874/3CX400. many an Alpha 76 series has been converted to a pair of either the 3CX800 or 3CP; /archives//html/Amps/2011-05/msg00187.html (11,300 bytes)
6. Re: [Amps] 3cx400A7 and 8877 (score: 1): Author: "Roger (sub1)" <sub1@rogerhalstead.com>; Date: Sat, 21 May 2011 21:45:38 -0400; Ahhh..You sure you have the right tubes? I have both right here and the 3CX800 is twice the size of the 8874. Even then the 3CX800 isn't very big. http://www.rogerhalstead.com/ham_files/Amp_files/Tub; /archives//html/Amps/2011-05/msg00188.html (9,783 bytes)
7. Re: [Amps] 3cx400A7 and 8877 (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Sun, 22 May 2011 15:14:19 +0000 (UTC); Hi Shane, This sounds like good advice, I think I'm worried about nothing. I looked in an old handbook which details a pair of 8873's and they are showing a B+ of 2500 V. Paul I've run 4CX250s at 28; /archives//html/Amps/2011-05/msg00193.html (7,985 bytes)

Current List: 1 - 7
Page: [1]