This
kit allows an existing PSK-1/-2
to have a second control, giving a boosted Power
Scale setting. The amount of continuously variable
boost depends on the setting of the primary Power
Scale control, with a maximum boost ratio of 10dB.
Wiring the PSB
without the 'Boost' control gives an
"instant headroom" feature, with a maximum
boost of 40dB. The footswitch and jacks are included.