Looking for Tektronix 4051 or 4052 Display Board

[Monty McGraw]

I've been repairing my Tektronix 4052.

I've got the digital logic working - but the text and graphics are messed
up.

I posted photos of the screens in my Tektronix 4052 troubleshooting thread
on vcfed.

With a scope on the final X amplifier stage - it is oscillating - so I see
weird horizontal strokes instead of dots for text.  I know from the service
manual that this circuit includes a feedback loop, and with the scope I see
oscillation all around the loop - so I haven't found the source.

Does anyone have a spare Tektronix 4052 (or 4051) Display Board that I
could buy?

Thanks,
Monty