Park Series Guitar Amplifier G80RCD

A mono Guitar amplifier with 80 watts power output. With two channels, Normal and Boost, and a Master section. Both channels have Gain controls and Bass, Middle and Treble equalization controls. The Normal channel has an input jack for the guitar, a clean/crunch rhythm switch and a Channel Select (Normal/Boost) switch. The Boost channel has a Contour control, Volume control and two Overdrive modes, OD1 and OD2 with an Overdrive select switch. The Master section has an Effects Loop feature for connecting an external effects processor or a floor pedal, with Effects In and Effects Out jacks and an Effects Level switch. Also with Effects (Dry/Eff), Reverb and Master Volume controls. Lastly on the front, jacks for Line Out and Foot Switch. The Line Out can be connected to a power amplifier or multitrack mixer. On the back, jacks for connection to one or two speakers and a jack for CD, minidisc or tape deck.  A 2-position Normal / Boost footswitch can switch channels and turn reverb on / off.

Here you find 17 models, 14 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Marshall, Jim, (Products) Ltd.; Hanwell