Check with Dick Byrd, N4UQ. Dick specializes in the repair of older Alpha
amplifiers. I know for certain that he has upgraded some 77Sx/Dx amps with
80 uF of high voltage electrolytic capacitors and upgraded rectifiers.
http://www.n4uq.com/
-Paul, W9AC
----- Original Message -----
From: "Martin Sole" <msole@loxinfo.co.th>
To: <amps@contesting.com>
Sent: Tuesday, June 15, 2004 11:55 PM
Subject: [Amps] Alpha 77 capacitor help
> Some weeks a go I mentioned an Alpha 77 that a friend and I were going to
> check out. In examining it we paid attention to the comments made by
others
> on here about what to look for, in particular the filter capacitor. What
we
> found was a pool of oil under the amp and a greasy film on the diode
board.
> It will all clean up but the cap is done for we think. Apparently Alpha
> power want $800 but they have directed us to Dahl's who still want $400.
> What we are thinking is that maybe there are alternatives.
>
> Will a suitably sized bank of electrolytics do the job?
>
> Can oil filled caps be re-conditioned?
>
> Does anybody have something that will do for a 'sensible' price?
>
> Any ideas?
>
> 73
> Martin, HS0ZED
>
>
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|