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Old 11th Aug 2022, 6:55 pm   #17
stevehertz
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Join Date: Sep 2011
Location: Rugeley, Staffordshire, UK.
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Default Re: Mullard E7600/4 tube tester card database

Quote:
Originally Posted by TowerRadio View Post
I had to replace the 4.00 mfd 500v electrolytics for the eht to the crt,I used film ones,4.7mfd. 630v. The focus was useless,after changing electrolytics it was fine.Les
I was getting a comet shaped dot using something like 4uf at only 400V (I can't recall the exact values, but the voltage was too low). I then changed to using two 8uf 400v in series and all was fine. Don (see post above) told me that fix for the comet shaped dot.
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