01-17-2018, 08:06 AM
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
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