UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Gemini 80-Bus System

JohnBHanson · 7th Dec 2019, 10:20 am

Just to clarify I am talking about a different floppy controller - not the same as a GM849/GM849A. This different floppy controller has a different IC in position IC14 which is not a 74LS21 as shown on the circuit diagram you quote.

7th Dec 2019, 10:20 am	#273
JohnBHanson Heptode Join Date: Aug 2009 Location: Worthing, Sussex, UK. Posts: 661	Re: Gemini 80-Bus System Just to clarify I am talking about a different floppy controller - not the same as a GM849/GM849A. This different floppy controller has a different IC in position IC14 which is not a 74LS21 as shown on the circuit diagram you quote.