Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+B\&W\s+plate\s+choke\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+B\&W\s+plate\s+choke\s*$/: 9 ]

Total 9 documents matching your query.

1. [Amps] B&W plate choke (score: 1): Author: John Irwin <crazytvjohn@yahoo.com>; Date: Tue, 12 Apr 2005 16:38:25 -0700 (PDT); Dudes Does anyone know the specs on a B&W 800 choke? They currently make a #802 .This one is a #800 and I can't seem to find much out about it other than there was one made at one time. john kb9tc --; /archives//html/Amps/2005-04/msg00238.html (6,407 bytes)
2. Re: [Amps] B&W plate choke (score: 1): Author: "Kenneth D. Grimm, K4XL" <kgrimm@adelphia.net>; Date: Tue, 12 Apr 2005 22:14:16 -0400; From a 1962 B&W advert: "This unit (800) is ideal for parallel or series fed high power final amplifier circuits. It is used for operation in the amateur bands--80 through 10 meters inclusive. Windin; /archives//html/Amps/2005-04/msg00241.html (7,704 bytes)
3. Re: [Amps] B&W plate choke (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 13 Apr 2005 08:12:13 -0400; 800 is 90 UH and the 802 is 200 UH. #26 wire if I remember. I've used both hanging off a 4-1000A. You need the 802 for 160 meters. The 800 is resonant around 25 MHz. Dudes Does anyone know the specs; /archives//html/Amps/2005-04/msg00249.html (8,227 bytes)
4. Re: [Amps] B&W plate choke (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 13 Apr 2005 08:20:05 -0400; I've hung a B&W 800 off a 4CX3000A myself. That is 2500 volts AM so actually 5 KW peak. I've done 5500 volts without failure. They go off like a Thompson machine gun if resonated. Easy to repair thou; /archives//html/Amps/2005-04/msg00250.html (9,199 bytes)
5. Re: [Amps] B&W plate choke (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Wed, 13 Apr 2005 08:44:29 -0400; I believe Dick Bryd, N4UQ still has a B&W upgrade program where he takes your #800 in on trade and then issues out a re-wound #802 choke (on old #800 ceramic cores) from his bench inventory. I used; /archives//html/Amps/2005-04/msg00252.html (7,691 bytes)
6. Re: [Amps] B&W plate choke (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 13 Apr 2005 09:00:05 -0400; The 802 is just a number of close wound turns at the bottom of the form to increase the inductance. I have never measured the series resonance but my old 4-1000A rig was converted to cover 160 meters; /archives//html/Amps/2005-04/msg00253.html (8,739 bytes)
7. Re: [Amps] B&W plate choke (score: 1): Author: "Phil Clements" <philc@texascellnet.com>; Date: Wed, 13 Apr 2005 12:18:04 -0500; How can the 802 be 200 uh? It only has about 10 more turns on it than the 800 does. (((73))) Phil Clements, K5PC 800 is 90 UH and the 802 is 200 UH. #26 wire if I remember. I've used both hanging off; /archives//html/Amps/2005-04/msg00258.html (8,077 bytes)
8. Re: [Amps] B&W plate choke (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Wed, 13 Apr 2005 13:51:52 -0400; A 200uH choke (for 1.8MHz RFC applications), using 26AWG magnet wire will require 445 turns with close spacing and this will occupy 14.1 inches of form at an inner diameter of 0.750 inches. _________; /archives//html/Amps/2005-04/msg00260.html (7,792 bytes)
9. Re: [Amps] B&W plate choke (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Wed, 13 Apr 2005 14:05:15 -0400; I may be wrong on the wire size try #28. The bottom 1/3 of the choke was close wound if I remember. Try the calculation for 90 uH to check yourself. I'm working from memory here. We agree it needs to; /archives//html/Amps/2005-04/msg00262.html (9,115 bytes)

Current List: 1 - 9
Page: [1]