Amptata T3 Vacuum Tube Tester Bias Current Checker

[SQUAREHEAD]

Has anyone tried one of these? My cousin needs one of these and doesn’t wanna spend a lot of money, just wondered if it’s accurate or if it’s just a cheap piece of junk?

https://www.ebay.com/itm/2836176179...409402c2853e484ca0e41b4112213a3b|ampid:PL_CLK

 

[Samhain]

"copper used for excellent conductivity" ..... well that's always a plus.

 

[LP Freak]

I’d look for a used Weber Bias Rite

 

[SQUAREHEAD]

Yes, I know the Weber is a better unit but the one thing I hate about it is that you have to take a Marshall chassis out of the head cabinet just to test…
Look how long the sockets are

 

[LP Freak]

Yea but that’s where the bias pot is