07-03-2014, 09:58 PM
The 37-690 lives!
Yesterday, I finished up the amp/power supply chassis. One of the wires coming out of one of the power transformers - which just so happened to be one side of the AC line primary - had a broken spot just outside the transformer shell. That received a piece of heat shrink tubing, which now extends into the shell for safety and the "just in case" factor.
Tonight, I pulled the tweeters out of the cabinet. Everything else was already out. Spread everything out across my workbench, plugged the 690 into my Variac, and slowly brought it up. By 90 VAC I was picking up music from my home transmitter. I took it up to 115 and let it play for an hour or so, and it did well.
Next move: to give the chassis an alignment.
Yesterday, I finished up the amp/power supply chassis. One of the wires coming out of one of the power transformers - which just so happened to be one side of the AC line primary - had a broken spot just outside the transformer shell. That received a piece of heat shrink tubing, which now extends into the shell for safety and the "just in case" factor.
Tonight, I pulled the tweeters out of the cabinet. Everything else was already out. Spread everything out across my workbench, plugged the 690 into my Variac, and slowly brought it up. By 90 VAC I was picking up music from my home transmitter. I took it up to 115 and let it play for an hour or so, and it did well.
Next move: to give the chassis an alignment.
--
Ron Ramirez
Ferdinand IN
