UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Soviet HI-FI

Philips210 · 23rd Sep 2018, 7:57 pm

Hi

I am interested in those two large ICs in pic 2 of post #45. They're on the board resting on top of the front panel. The white one, probably ceramic appears to have a mica window so possibly a microcontroller with on board EPROM.
Even more interesting, is the other large IC. That looks as if it has two windows. If so then that's the first time I've seen such an IC. Do double window EPROM types ICs exist I wonder?

Regards
Symon.

23rd Sep 2018, 7:57 pm	#51
Philips210 Nonode Join Date: May 2007 Location: Redruth, Cornwall, UK. Posts: 2,578	Re: Soviet HI-FI Hi I am interested in those two large ICs in pic 2 of post #45. They're on the board resting on top of the front panel. The white one, probably ceramic appears to have a mica window so possibly a microcontroller with on board EPROM. Even more interesting, is the other large IC. That looks as if it has two windows. If so then that's the first time I've seen such an IC. Do double window EPROM types ICs exist I wonder? Regards Symon.