The book says 2N6308 in a TO-3 package.
It also says the -01 parts were selected for Toff > 3uS but not the
test conditions. As far as I can tell, the normal parts were rated to
have a Toff of < 3uS.
I would probably try using a 2N6545 as a replacement but only because
I have a whole drawer full of them. It is a pretty standard offline
power switch application. I think a BUX48 or 2N6547 would work well.
On Sun, 30 Jun 2013 21:37:52 +0100, Christopher Hilton-Johnson
<chj@...> wrote:
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
David Hess