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Axle · 05-22-2023, 08:43 AM

The OE variable delay in my c10 seems to be completely variable. It may be stepped, but it is not obvious.
The later half length one uses an MC14001BCP ic in it.(Quad 2 input nand gate) bunch of caps and diodes and I think one transistor.

The prior designed long body one uses a 74LS122, and a handfull of transistors.

The really early one was two circuit boards if I remember right and all discrete components. Actually, it might be the late build 1/2 length one that is two circuit boards.

Long ago I thought I'd make my own replacement but then I found a working one and havn't looked at it again. Just happened to have the ICs written on a note in the service manual.

05-22-2023, 08:43 AM	#19
Axle Registered User Join Date: Jul 2011 Location: SW Ontario Posts: 1,199	Re: 87 c-10 r-10 pulse wiper options The OE variable delay in my c10 seems to be completely variable. It may be stepped, but it is not obvious. The later half length one uses an MC14001BCP ic in it.(Quad 2 input nand gate) bunch of caps and diodes and I think one transistor. The prior designed long body one uses a 74LS122, and a handfull of transistors. The really early one was two circuit boards if I remember right and all discrete components. Actually, it might be the late build 1/2 length one that is two circuit boards. Long ago I thought I'd make my own replacement but then I found a working one and havn't looked at it again. Just happened to have the ICs written on a note in the service manual.