Guest Join UsHello Guest,
Please feel free to join us!
Unlock sections of the Phorum that non-members cannot see.
Sign up for Phorum membership today! or Register


Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
7050 tube tester
#1
Working on a Philco 7050 tester that won't come to center scale in the calibrate "line"
position except at the highest [extreme right] setting.

Tester seems to test tubes O.K.
I lifted the chassis out & everything looks factory, except maybe the line cord has
been replaced.
 Also noticed the 6X5GT/G rect.  Heard horror stories of these shorting & taking
out transformers.
Anyone have info on this happening when used in tube tester applications??

There is only a .1 @ 400 Volt cap underneath which looks a bit questionable. Probably
could be replaced??  I thought there might be a filter for the B+, but none there.

Is anyone aware of a schematic for this unit?

The roll chart [flips on side of case] says it's for a 7051.  Wondering if it has been
updated with a newer version?

Thanks for any info.
Jim
Reply
#2
Sometimes testers do that when the rectifier tube(s) panels' contacts need cleaning.
Mine does.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Reply
#3
Thread moved to test equipment.
Reply




Users browsing this thread: 1 Guest(s)

About Philco Phorum

The Philco Phorum is a family-friendly place for the discussion of Philco radios and related items.

Please feel free to join us! Unlock sections of the Phorum that non-members cannot see. Sign up for Phorum membership today!

           Quick Links