[time-nuts] Re: Partial Symetricon 1050A Schematics

[Jim Harman]

In the A2A1 schematic, Q9, 2N2907A, is a PNP transistor. The emitter and
collector are reversed in the schematic.

I would guess that Q5, shown as 2N2902A, is also a 2N2907A.

On Sat, Dec 23, 2023 at 10:07 PM Perry Sandeen via time-nuts <
time-nuts at lists.febo.com> wrote:

> List,
> I have re-drawn 4 Symetricon 1050A schematics from scans provided by John
> K0CGJ using PSE 9 into PNG images.  These images can be enlarged to any
> size for printing without smearing.
> I'll try attaching them to this post. If they are scrubed, please contact
> me off line and I'll be glad to send them.
> If anyone has other schematic scans, please send them to me and I'll
> re-draw them into TIFF BIT images for the ability to make large clear
> prints.
> If anyone discovers any error's, please contact me so I can correct them.
> Best wishes,
> Perry KM6FQV
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-- 

--Jim Harman