Ray King wrote in message
...
Sorry,
Correction
below.
The popular N/P fets in this size in ( TO247) package are
IRFP130/IRFP9130
and IRFP140/IRFP9140 in the ( TO220) package are IRF520/IRF9520 and
IRF530/IRF9530 and IRF540/IRF9540.
Ray



"N Cook" wrote in message
...
In the same manner that, often for audio power output situations,
cheap 100V, 15amp TIP3055/TIP2955 with maybe a bit of change of
mounting
is
a perfectly servicable replacement for rare/expensive 2SA... / 2SC...
bipolar pairs.
Is there anything similarly for the same/similar wide plastic package
TO3P,TOP3,SOT199,TOP66 100Volt , 15amp power MOSFET n and p type
pairings
for audio use ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/







In a similar vein. If an amp needs a rare or expensive or unattainable
output hybrid block STK..., TA..., Si... I tend these days using a
relatively cheap for its performance, 100W TDA7294 instead. Small enough to
place upside down or 2 together for 2 channels, with extra clamping and with
a strip of matrix board on the new block pins then insulated wires crossing
over one another to the original pad positions.
It is usually possible to work out the DC rails, i/ps,o/p, comp, mute lines
even if a pinout for the original is not available.


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/