Ancient transistor ?computer board (Peter Van Peborgh)

Doug Jackson doug at
Thu Jun 18 17:48:04 CDT 2020

Hi Peter,

That is a stunning board, and in beautiful condition.

The square cubes are transformers, most likely some sort of pulse
transformer on the base of the transistor.

A multimeter will tell you in quick form.


Kindest regards,

Doug Jackson

em: doug at
ph: 0414 986878

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On Fri, Jun 19, 2020 at 6:14 AM Peter Van Peborgh via cctech <
cctech at> wrote:

> OK, now here are some pics that should be available to everybody. I hope.
> Smells of (early) 1960s transistorized.
> No helpful marking apart from
> *       "GATE JJ01" on SIDE A. (components).
> *       "C NT OL DATA" on side B (solder traces).
> Big transistors are Motorola "180376008". Also, any ideas what the "246 636
> B" boxes are, they have four legs?
> A curse on TinyURL and praise to Camiel Vanderhoven.
> peter

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