head consists of two channels and a spring reverb. The a-channel preamp is
based on 12AX7s and b-channel on one EF86. The power amp is based on VOX
AC30/Matchless DC30. The reverb can be switched either to a- or b-channel by
using a foot pedal or toggle switch.
Actually there are 4 different amps in one box: VOX AC30, Matchless DC30, VOX AC15 and Matchless Lightning. Futhermore there is a reverb using a long 3-spring tank which is driven by tubes.