?

Tony
151-0368-00 are commonly used in the 'hi-efficiency' 7K series PSU. This translates to the 2N6300, recently available from Ebay (china source).
?In some mainframes, where higher power is required, (eg 7844) Tek 'selected' the 2N6300 and called it a 151-0386-01. Sphere lists the -01 version as MJ13015. There are 3 available on Ebay now for $19+ (& same vendor has more from time to time).
In my experience the China parts are iffy, the MJ13015 works fine.

Chris HJ

On 30/06/2013 19:14, atonizzo wrote:

?

Hi:

I am fixing a 7904 that has a busted power supply.
Both inverter transistors (Q1234 and Q1241) are busted
due to a connection to 240V while setup for 115V.

The transistors are Motorola 151-03-6800 and I will be
looking around for a replacement of the same kind, but
I was also wondering if anybody has has any success
trying more modern replacements for these parts.

Any suggestion about similar parts would be appreciated.

Regards
Tony