[Test-Equipment] Tektronix RG501 Ramp Generator

[Terry Martin]

I recently aquired the above 500-series unit for a song (ie free!) but is
completely dead. I have a need to use it so would very much like to get it
back on the road. I have neither a manual or circuit diagram (anyone got a
PDF?). On inspection, there is a burnt out resistor. Looking from the edge
connectors towards the front panel there are 2 741 op amps. Above the
left-hand one there is a 2N2907A and above that, the resistor in question
spanning a track. It is badly burnt and I cannot make out the multiplier.
The first 2 bands suggest 39. If anyone has a diagram or unit, please could
you tell me the value. Any other info would also be welcome.
Many thanks,
	Terry , M0CLH