I could kick myself. Tektronix 603a
I picked up a piece of Tektronix kit today from and ignored the golden rule before powering it up. Check some numpty hasn't replaced the 600mA fuse with something stupid like a 10A slow blow.
I couldn't wait to fire up the storage monitor and when I did I got a dot on the screen and was able to shift it around so I thought "Nice" then it went dead after 5mins with a puff of smoke.
One of the Sprague 3300uF 25V caps had shorted and because it had a nail for a fuse both tracks feeding the bridge rectifier for the +20v rail instantly disintegrated. Well I can fix it but it was a reminder to do some initial checks before getting too excited.
Cheers
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