Sunn Concert Bass Amp - Troubleshoot and Repair

It's not often I work on transistorized amplifiers, however a couple of times a year I take on such a project.  This Sunn concert, built around 1973 was owned by the same person since around that time and was looking for electronic repairs with no cosmetic work.  I decided to take on the task.

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Foodsaver FM3600 Not working - No Power, No lights - Troubleshoot why

I had recently purchased this Foodsaver model FM3600 for my mother, having only used it once before to seal a few items and store it on the shelf, in the next use, after a few items it up and died.  Though Foodsaver honored the warranty, this thing feels so cheap for the price, I was curious to see what it was made of before turning it in.          Click here to see more......