Introducing the first  fully controllable

Tube Ringmod Module. 

For those of you needing the additional power please click on the power supply image  for the correct and easily attainable unit from Amazon.

View our Tube Ringmod videos

Circuit Abbey's Tube Ringmod is available NOW.

Contact one of the following dealers to purchase your Pure Tube Core Ringmod.

San Diego California

Pomona California

Royal Oak Michigan