Author Topic: FirstWatt F5 transistors  (Read 448 times)

Offline ghostinthemachine

FirstWatt F5 transistors
« on: August 06, 2020, 09:49:49 AM »
Good day friends

I am looking for a set of F5 transistors. The outputs and inputs.

2SJ74
2SK170

IRFP240
IRFP9240

Regards
D
Conquer yourself rather than the world - Rene Descartes

Offline d0dja

Re: FirstWatt F5 transistors
« Reply #1 on: August 06, 2020, 10:08:56 AM »
The IRFP240 is very hard to find. A good substitute is IRFP244 (prob better match to 9240).

See this thread for some of the ins and outs https://www.avforums.co.za/index.php/topic,70178.msg839724.html#msg839724

Online DACMan1

Re: FirstWatt F5 transistors
« Reply #2 on: August 06, 2020, 11:25:55 AM »
The 2sj74+sk170 are extremely difficult to find, especially if you want them matched.

I would advocate building an Aleph-X clone /runs and hides.

Offline fredeb

...evolution is the gradual development and stratification of progressive series of wholes, stretching from the inorganic beginnings to the highest level of spiritual creation.
Jan Smuts

Offline ghostinthemachine

Re: FirstWatt F5 transistors
« Reply #4 on: August 06, 2020, 02:17:03 PM »
The 2sj74+sk170 are extremely difficult to find, especially if you want them matched.

I would advocate building an Aleph-X clone /runs and hides.

Thanks - this is for a repair...
Conquer yourself rather than the world - Rene Descartes