TB-1B has been arranged using TB-1 as the base.
The overdrive booster is built to replace 3 tubes of high end vintage tube overdrive with 6 FET (semiconductors close to tube characteristics) The FET is also adopted for bypass circuit, so when connected this TB-1 will change the tube sound style.
The TB-1 features a comfortable compressive feel and a picking nuance that can be connected from 9 V to up to 15 V, so you can experience the difference of sound depending on the voltage. Controls include two "TUBE DRIVE" and "MASTER" which uses gain control to keep the basic sound out of the way. Tubular drive sound produced by TB-1 is a new sound discovery that you can expect to perform at the best.
Besides being used as a general booster, you can use this TB-1 to change the sound quality of the tube drive by connecting it to the back of your favorite booster or distortion.
Vacuum tube is not included