any Info on this chip???

[JOE DIRT®]

I have a pair of STK 4042II....does anyone have any info on them or where I could get some data sheets for them....I beleive they are 100 watt modules...I have the transformer for them its a 90vct 500VA...I bought them new about 15 years ago and found them as I was scavenging through my 10 000 boxes of parts..LOL...I was thinking I could make a couple of nice plate amps with them....any info would be greatly appreciated

Cheers!!The DIRT®

 

[Fusor]

Seems to be an obsolete Sanyo part.
Those frugal Russians still have a data sheet.
http://www.promelec.ru/pdf/stk4042.pdf
regards