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Old 21st May 2021, 6:41 pm   #6
knobtwiddler
Hexode
 
Join Date: Mar 2016
Location: London, UK.
Posts: 481
Default Re: Rebooting Racal 383-2 Oscilloscope

>You may want something to monitor the current draw as you bring it up

I have a current monitor. Are you advocating bringing it up on the variac, whilst watching draw? Does anyone think there could be any risk involved? With linear PSUs I think variacs are a great idea, but I am nervy with items that might have switching supplies. My understanding is that a lot of TVs from this period had switching PSUs (they are not a modern invention!). Is there a chance that the Racal from 1972 might?
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