Wavetek 178 Repair... complete with shorted component identification.

[TheDefpom]

I thought I would post some of my recent repairs here, I haven't posted any for a while, this one might interest people.

Dead Wavetek 178 Waveform Generator

[Testtech]

This is interesting and timely for me. I am currently working on two early version of these monsters for a customer, and they must meet all the specs. I own one like yours, a later version with the 10-turn pots (earlier units had single turn pots that have become erratic) and the dead bug bodge. I was wondering about that, as I don't recall seeing it before. It too had a shorted tantalum, it boots, but no output, a project for another day.

I have worked on many of these, there were lots of design tweaks over the years, most undocumented. Getting the older versions to meet spec can be quite time consuming.

Thanks for the video!