Can you test tubes with an ohmmeter for more than shorts?

[sunbulls]

Sometimes they test good in the tester as there is not a big load on them but will not
function when placed in the unit and fully driven.

Besides profit motivation, that’s one reason why a lot of TV repairmen back in the day rarely used a tube tester. Substitution with a new tube was the most reliable and less time consuming method. They all had a special made carrying case full of tubes supplied to them by whatever tube manufacture they purchased from.

 

[nomadradio]

If you can score a Hickok tester, the good ones perform two tests on a sweep tube. The usual "transconductance" test first, then a current test. This was meant to let you detect a tube that would not perform in your color TV. If a sweep tube gets soft, and won't deliver peak current any more the picture pulls in from the sides, and the high voltage drops, limiting the picture's brightness.

This doesn't let you accurately predict how many Watts you'll see from a 6KD6 in your linear, but it helps to sort out the ones holding back an amplifier's peak power output.

73

 

[Tweetybird]

Was looking at my tram stuff. Now I wonder where to get the specifications on some other tubes?

 

[BJ radionut]

http://electronbin.com/sheets0.html

http://www.tubebooks.org/tube_data.htm

 

[Tweetybird]

It doesn't say which pins are which. I will get a tube tester just trying to get by

 

[BJ radionut]

http://www.tubebooks.org/tubedata/RC25.pdf

One of the links posted...and YES does show pin data
All the Best
Gary