What is an NEC µPC1024H?
I obtained it from an old portable radio but I cannot find a data sheet.....

 

https://www.ebay.com/itm/1x-IC-PC10...&sd=310992604940&_trksid=p2047675.c100623.m-1

 

Hello,

It seems to be a preamplifier made in 1979:
https://www.radiomuseum.org/tubes/tube_pc1024.html

Bertus

 

Yes a simple preamp from NEC...

Vcc=42V Pt=400mW
3 NPN transistors inside from my 1977 "The linear IC Manual" data book

 

I had an stereo receiver on the bench today,
I was able to successfully replace it with some breadboard with this circuit on it.
Hope someone, somewhere will benefit from this one day .