Possibly intended as a replacement for the Watkins Joker, the
Powercat was a combined guitar amplifier based on the 15watt WEM Custom 15
two-channel combo with tremolo, and the MkIII Copicat tape-echo. This concept seems to have been unique amongst
equipment manufacturers to WEM, but it certainly made full use of the company's
very successful Copicat machine. ThePowercat was itself superseded
by the WEM Deep Blue amplifier/echo combination in 1967.