[amsat-bb] Re: FT-847 Disaster

["Jari Koivurinne" <jari.koivurinne@xxxxxxxx>]

>
> If the ohmmeter shows a dead short, then you probably cooked the
> final transistors.  Hopefully, you did not cook the VHF or UHF
> transmitter as the transistors are no longer available.  Yaesu had to
> discontinue manufacture of the FT-847 due to loss of supply for these
> transmitting transistors.
>
>
> GL, Ed - KL7UW
>
Ed et al.
Those HF/50/144MHz PA transistors are 2SC5125 which are still available.
They are also used in FT-857 etc...
Replacement transistor used is 2SC2782 which is quite common and very cheap.

The UHF transistor 2SC3102 is not so common but modestly available.

GL, Jari OH3UW

_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb