Hammond 194B 4H 90mA Filter Choke for Pro Reverb and Twin Amps

The 194B is a 4 H power supply choke for Fender tube guitar amplifiers, rated for 90 ma. of D.C. current. It is listed for the Bandmaster, Dual Showman, Pro Reverb and Twin Super, and it is equivalent to Fender part numbers 125C1A and 022699. It is intended for technicians replacing the filter choke in these higher-power Fender designs.

Inductance is 4 H with a +/-15% tolerance, and the 90 ma. rating accommodates the heavier supply current of these amplifier models compared with the 50 ma. 194A. The manufacturer short description reads "CHOKE 90MA, 1500 OHMS".

Like every 194 Series choke, it was designed for drop in replacement of the original unit and physically designed to look similar to the original factory part where possible. Material and design specifications were kept as close as possible to the original to preserve the stock tone, and the unit is vacuum impregnated with polyurethane varnish for quiet and long life operation. Inductance is measured at the rated D.C. current, so the published value reflects real operating conditions.

Shipping weight is 1 lbs (0.45 kg). The 194B carries UPC 623980094205 and UNSPSC 39121301 and is RoHS and REACH compliant. Fender model names are listed for reference only; Hammond is not affiliated with Fender Musical Instruments Corp.