[sdiy] anyone know what this chip is? M334 7161

[Loscha]

Afternoon Ladies and Gentlemens.

Please consider the following images:
  http://www.loscha.com/images/M334-7161.jpg  155k
  http://www.loscha.com/images/M334-7161_small.jpg  20k


There are two of these in a thing called an Orgatron (GTR orgatron 2,
from the late 60s-ish, an electronic thing, not the electroacoustic
reed organ thingy).

It was posted about when I first got it on Matrixsynth. Apparantly my
kid sister is a "Synth Babe". That page it links to is 404, by the
way, I don't think I have the sample up online anymore. It sounded
quite crap. A mono square osciallator with a few switched cap static
filters as "stops".
http://matrixsynth.blogspot.com/2006/11/gtr-orgatron.html

 Has anyone seen this part before? The unit has some stops that are
octave down, so, thinking it may be a divider. Seems like an "organy"
type chip, I recall seeing something similar in a Crumar organ/piano I
had 10 years ago.

Any assistance would be appreciated. Hoping, honestly, that they'll be
able to be given to someone to repair something worth while, instead
of this piece of crap I junked & dumped today!!!!!

They are both connected up in a similar fashion.
Short pin next to trace (the lump) always goes to earth.
Long pin not on bump end goes to +ve
They are situated in the section of the circuit which is a volume
control. Possibly some kind of VCA or amplifying transistor.

It's not in my little "cubic" Tech/Eca Asia Pacigic "Up-To-Date
World's Transistors-Diodes-Thyristors & ICs Comparison Tables". (the
Jaycar ones, about 10 years old).
I'm stumped. Am not even sure what package to call it.

 Thanks for your time if you bothered to read my rambling all the same!

-ErJ