Substrate temperature stabilized

Don Tillman don at
Thu Jun 8 18:34:08 CEST 1995

   Date: Thu, 08 Jun 1995 16:06:52 +0200
   From: Rick Jansen <rick at>

   Joachim Verghese wrote:
   > Then there's also the MPQ2222 (Motorola/SGS-Thompson) which is
   > four 2N2222s in a DIP14

   Aha! Suddenly there seems to be a hoard of suitable devices :)

Nope.  As far as I know, the transistors in this device are not
on the same substrate and not matched.

  -- Don

More information about the Synth-diy mailing list