Marked: panel 1: "De Forest Inter-Panel Set / One Step Amplifier / Type MP-200"; panel 2: "De Forest Inter-Panel Set / One step amplifier Type MP-200"; panel 3: "De Forest Inter-Panel Set / Audion ...
With many audio systems consisting of separate units, you’ll often find that due to economic reasons only the amplifier has a remote control receiver module. The control signals are then sent to the ...
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