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48-1262 low voltage
ke5yum
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Posts: 41
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Joined: Feb 2013
City: Oklahoma/Texas
#1

04-04-2013, 08:14 AM
Good morning, all

Well, the bads micas don't appear to be an issue, but I do have low voltage. The values appear to be about half of what they should be.

All paper/wax and electrolytics have been replaced with correct values. voltage is 120 ac with a variac. Tubes all tested good when I tested them with a tube tester.

Using the section 1 trouble shooting guide from the service manual, I get the following readings:

Test point A 82.7 (167)
Test point C 110.0 (214)
Test point D 97.0 (181)

Oscillator:

Pin 3 51.8 (110)
Pin 6 52.7 (115)
Pin 7 2.9 (4.2)

R102 reads 166K (120K); it's a leakage resistor.

After the recap last week. I powered it up and did hear a faint signal from the local station.

I am thinking I now have a bad 50X6 tube. Any thoughts?

Terry
KE5YUM
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Messages In This Thread
48-1262 low voltage - by ke5yum - 04-04-2013, 08:14 AM
RE: 48-1262 low voltage - by BrendaAnnD - 04-04-2013, 08:48 AM
RE: 48-1262 low voltage - by ke5yum - 04-04-2013, 09:27 AM
RE: 48-1262 low voltage - by morzh - 04-04-2013, 11:41 AM
RE: 48-1262 low voltage - by ke5yum - 04-05-2013, 07:59 AM
RE: 48-1262 low voltage - by ke5yum - 04-05-2013, 09:04 AM
RE: 48-1262 low voltage - by BrendaAnnD - 04-05-2013, 10:40 AM
RE: 48-1262 low voltage - by ke5yum - 04-05-2013, 11:19 AM
RE: 48-1262 low voltage - by ke5yum - 04-05-2013, 01:30 PM



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