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Old 23rd May 2020, 11:56 am   #13
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,560
Default Re: Studer / Revox etc BiPolar PROMS! Question and concerns!

Good man!

I also found a similar list when seems to suggest that the

Philips / Signetics 82S23
AMD 27S18
National Semiconductor DM74S188

..Have the same pinout as well. If so there's quite a bit of choice for replacement devices.
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