Ampeg SVT 100 Standard Retube Kit

These amps are adjustable bias and all you need to bias the amp is a bias probe and a Multimeter or our all-in-one Eurotubes "Pro One" bias probe that reads both the plate current and the plate voltage simultaneously. You can find all these under the Related Products Tab. 

You can use our Generic Bias Video for reference.

The video below explains the difference between bias probe types.