- 1. [Amps] SB-230 Amp Retrofit (score: 1)
- Author: "Harry Brown" <harryhbrown@earthlink.net>
- Date: Fri, 12 Oct 2007 13:54:44 -0400
- I got a SB-230 Amp at a local hamfest with a bad 8873. I'd like to replace the 8873 with something affordable. Can someone point me to a conversion article on the 230 that uses an air cooled tube? 73
- /archives//html/Amps/2007-10/msg00161.html (6,347 bytes)
- 2. Re: [Amps] SB-230 Amp Retrofit (score: 1)
- Author: "Roger" <sub1@rogerhalstead.com>
- Date: Fri, 12 Oct 2007 14:09:51 -0400
- Depends on what you mean by affordable. With major surgery you could change to a 3CX800. Although readily available they aren't exactly cheap either. 73 Roger (K8RI) ________________________________
- /archives//html/Amps/2007-10/msg00163.html (6,986 bytes)
- 3. Re: [Amps] SB-230 Amp Retrofit (score: 1)
- Author: "Bob Miller" <wb6kwt@sbcglobal.net>
- Date: Fri, 12 Oct 2007 12:59:01 -0700
- Harry, Check this site out, these fellows have a couple of other retrofits too. http://gi7b.com/sb230/index.html Bob wb6kwt I got a SB-230 Amp at a local hamfest with a bad 8873. I'd like to replace
- /archives//html/Amps/2007-10/msg00165.html (7,280 bytes)
- 4. Re: [Amps] SB-230 Amp Retrofit (score: 1)
- Author: "jeremy-ca" <km1h@jeremy.mv.com>
- Date: Fri, 12 Oct 2007 18:40:19 -0400
- Thats awful lot of work. And then hope the source of tubes doesnt dry up. Ive done a swap by sawing off the side of an 8874 (dont laugh, they "were" cheap) and TIG welding a heavy brass plate. I forg
- /archives//html/Amps/2007-10/msg00166.html (9,707 bytes)
- 5. Re: [Amps] SB-230 Amp Retrofit (score: 1)
- Author: Rob Frohne <frohro@wallawalla.edu>
- Date: Sun, 14 Oct 2007 00:00:55 -0700
- Hi Harry, I have an SB-230 modified by Bob Friess to use an 8560AS. These tubes go for around $50 each new, and it will put out 500 watts with 10 watts drive. Bob lost a lot of the design data when h
- /archives//html/Amps/2007-10/msg00180.html (7,949 bytes)
This search system is powered by
Namazu