On Tue, 20 Nov 2018 10:02:40 -0500, Ralph Mowery
wrote:

In article ,
says...

Maybe it's time to make some new tube testers.

While we're here, an iso won't help if you connect an earthed scope to the thing. It will bite you if you touch, and that's how HT is.




It is usually easier to just pop in a good tube instead of testing
unless looking for a matched set.

I have bought a $ 300 Hantek scope. It is suppose to be good to 200 MHz
and rated for 600 volts peak. Good thing about it, you can set the
screen up for waveform and digital volt meter. YOu see the waveform and
good resolution of voltage at the same time.

Sometimes it may be better or easier to just isolate the test equipment
from the ground and not the unit under test. I don't know how much the
solid scope draws without going to check, but it could probalby be
powered by 2 transformers of 24 volts at 2 amps or so placed back to
back.

I think I need to take a look at one of those.
Thanks,
Eric

In article ,
says...

I have bought a $ 300 Hantek scope. It is suppose to be good to 200 MHz
and rated for 600 volts peak. Good thing about it, you can set the
screen up for waveform and digital volt meter. YOu see the waveform and
good resolution of voltage at the same time.

Sometimes it may be better or easier to just isolate the test equipment
from the ground and not the unit under test. I don't know how much the
solid scope draws without going to check, but it could probalby be
powered by 2 transformers of 24 volts at 2 amps or so placed back to
back.

I think I need to take a look at one of those.
Thanks,
Eric



Look into it at this company. They often put it on sale and with free
shipping. I bought one there and a friend did also. They seem to be
fine scopes for the price, especilally if you have an analog scope to
use. They sell several other scopes of the same brand along with many
other items at a good price.

On Tue, 20 Nov 2018 12:30:07 -0500, Ralph Mowery
wrote:

In article ,
says...

I have bought a $ 300 Hantek scope. It is suppose to be good to 200 MHz
and rated for 600 volts peak. Good thing about it, you can set the
screen up for waveform and digital volt meter. YOu see the waveform and
good resolution of voltage at the same time.

Sometimes it may be better or easier to just isolate the test equipment
from the ground and not the unit under test. I don't know how much the
solid scope draws without going to check, but it could probalby be
powered by 2 transformers of 24 volts at 2 amps or so placed back to
back.

I think I need to take a look at one of those.
Thanks,
Eric



Look into it at this company. They often put it on sale and with free
shipping. I bought one there and a friend did also. They seem to be
fine scopes for the price, especilally if you have an analog scope to
use. They sell several other scopes of the same brand along with many
other items at a good price.

I think you forgot to include a link.
Eric

In article ,
says...

Look into it at this company. They often put it on sale and with free
shipping. I bought one there and a friend did also. They seem to be
fine scopes for the price, especilally if you have an analog scope to
use. They sell several other scopes of the same brand along with many
other items at a good price.

I think you forgot to include a link.
Eric



https://www.circuitspecialists.com/d...-oscilloscopes

Yes I did.