Univox
U-45B amplifier
Features a 12″ Jensen ceramic C12R Additionally, the B version included the addition of a dedicated footswitch jack for the tremolo effect on the control panel. 3 identical instrument inputs, volume, tone and tremolo controls. One 12AX7 and another 6BM8 for preamp/tremolo/phase-inverter duties and a 6X4 rectifier. The U-45B is very lightweight – super for recording or smaller sessions where you need crisp cleans or a nice overdrive at low volume. Height is 16 1/2 in. (41.9 cm.), 15 in. (38.1 cm.) width, and 10 1/4 in. (26 cm.) in depth at deepest point.