looking to identify this IC, it's most likely from the mid to late 70s and my own hunt has turned up nothing, I would expect it to most likely be some form of amplifier as it is used in a preamp circuit. Any help would be appreciated, thanks!Fergus.
Based off the pinout I believe it is the LS150, power and ground to the correct pins anyway and everything else looks reasonable so far, looks like one is being used as the Expandor and one as a compressor potentially.
Long header on the right has 10v in on 1 pin, and the others are split between ground and the three playback heads, 4 pin header is the erase head power and I believe the record head, the add on board has a 2 pin behind the capacitors for AC Input, ...
@Tesla DeLorean wrote:Some what of a goldmine here. One with some L1xx docshttps://www.rsp-italy.it/Electronics/Databooks/SGS/index.htmhttps://www.rsp-italy.it/Electronics/Databooks/SGS/_contents/SGS%20Professional%20Semiconductor%202%20-%20Linear%20...
Thanks for your quick response, unfortunate that there isn't more info but it's definitely somewhere to start. there's a pair of the l150s and a ua741tc opamp on a board that appears to have been a modification to the original preamp circuit, the boa...
