Scopes are a funny thing. Up till the late 70's we almost never used them.
Then they became indisposable on new sets. So much so we started using them on old sets instead of plugging at them with a Simpson 260 or
RCA volt-ohmist. I thing almost any tube set can be fixed with a good meter
and a ringer for yokes & FBT's. It helped we bought the Sencore suite
then another all on crash carts. New stuff took the fustration out of
test leads etc. Sencore also used to publish a LOT of how to stuff
that was of great help.
Anyhoo time to finish my ale & hit the sack. & GB all my VK friends.
73 Zeno
LFOD !
Quote:
Originally Posted by Electronic M
Unless you sell all your tube electronics or stop using them permanently you will encounter another problem where having a scope will be helpful. Test equipment is the one thing I'll probably never sell even if I were to dump 95% of my collection...I know if I sell it, a week later I'll need it bad enough to regret letting it go.
Dealing with this without a scope is like trying to win a marathon when one of your legs just got amputated yesterday and replaced with a peg leg... Dealing with this with a DMM that isn't sufficient for the job is like running that marathon with only one leg, and that leg is the peg leg...
That said if your meter has a dedicated DC Volts setting you can measure DC current as a voltage if you have a power resistor of a known value. Connect a 1 ohm or 10 Ohm power resistor in series with the cathodes, clip your meter across the resistor and measure DC voltage. DC current will equal measured DC voltage divided by resistance of that resistor...A 1 Ohm will make the math MUCH easier.
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