Vt50

[Randy Myers]

ahhh... but I assume that I have to at least set DC... like the blue one on the left side of the dial. Correct or does this not even matter?

[JMD]

Depends on the meter some sense that too.

[Randy Myers]

Hmmm.... well I am referring to the one you suggested because that is the one I am getting ....

[JMD]

If you don't choose it will, but try it both ways and verify the readings are the same.

[Randy Myers]

Well I will give it a go, and again thank you.

One other very important question... when I attach the clips to the resistor legs, do I turn the amp off first or can this be done when the amplifier is powered? Or, should the meter be attached prior to turning on the amp and starting the warm up process?

[JMD]

Amp on.

[birdland]

Sorry, didn't get notifications that there were more posts here.

You need a meter which is accurate to 0.1mV DC.

Yes, you set the meter to DC range.

I don't like to use the alligator test leads. I use the spring loaded test leads similar to these:


https://www.circuitspecialists.com/4...isMaAq7g8P8HAQ

[birdland]

You have to warm up the tubes with music for 20 minutes or so and then let it settle for a few minutes with no input. No problem putting the leads on the resistor while the amp is on.

As I mentioned before, I like the spring loaded clips because they stay on the resistor leads and do not scratch them.

[birdland]

The blue on the left is for DC mA if I read it correctly. You need DC mV.

[Randy Myers]

So that would be the big red one on the top right? In most of the examples I saw in reviews they were using that one.