Perhaps there's an issue with the CA3036?

Thanks for the tips redwire!



These appear to be ok. I do have some replacements on hand, I swapped them out and checked the forward voltages across their pins, everything looked nominal. Ran with the replacements, same issue. No smoked resisters that I can tell.




All caps were swapped out. They were all outside 20% out of circuit. ESR was a little high too. Signal is a little cleaner, but still "half" a signal.

+/-15V looks good. Tuned it in, as it was close to out of spec wrt details in the manual. No change to...

First post!

Last night I finally got a chance to try out a wavetek 130 that I purchased a year ago or so after finally getting unpacked from a move. It was working really well, I was testing the various settings from the 50 ohm output into my rigol scope and it seemed to be fairly accurate. I was stepping through the course adjust from x10 to x100 and sweeping the dial looking for any distortions or drops/rises in amplitude. It all looked great.

Then when i switched to the 1M setting, the sine wave disappeared. I moved back to x100k and the sine wave was still gone. Something...

Hi all,

New to electronics as a hobby in general. Been working on setting up a lab at home for a few years now. A lot of equipment second hand needs a bit of work, so I've been reading over this forum for a while now. Most of my questions have been answered by older posts up until now. Here to ask everyone a few things to help fill in knowledge gaps.