Guyatone FILIP3000
The amplifier of 3 volume control.It wasn't being used until 1998. For 1999 years, a vacuum tube was replaced, and it reverted to the incumbent post.
Year
197X
Model
Guyatone FILP3000
Front Conrol
Power Sw, Gain,Mvol, vol, Bass, Middle,T, Iq,Rev