21MX proms (per request

10 Sep 2015

As often the case, I recall wrong.
I stand corrected.
Dwight

From: dkelvey at hotmail.com
To: cctalk at classiccmp.org
Subject: RE: 21MX proms (per request
Date: Thu, 10 Sep 2015 12:09:39 -0700

Yep, looked it up.
2716 and 2732 used a pulsed Vpp( 2708 a well ).
Beyond that they had a static Vpp and a PGM pin.
Dwight