Thunderbird Amp Question
I've owned this amp for many years. It was given to me in horrid shape, and I totally rebuilt the cab, and had an amp guy change every cap and questionable component. The speaker is original, however, I had to find a new basket for it.
My question is this - what does the 3-way vertical switch between the input jacks and the Volume knob do? Sounds like there's some EQ trickery, but, I can't seem to figure it out.
That is for bright (highs)/mids/lows.
'56 A-50, '57 CE-100, '60 X-150, '61 M-20, '62 F-20, '64 S-50 Jetstar, '64 Mark II, '65 SFIV, '71 S-90, '75 F-112, '75 Mark IVp, '81 M-80, '82 S-275, '86 T-250, '88 Detonator, '90 Pilot SB602, '93 X-500, '97 Bluesbird, '99 F-30, '16 NS S-200 Thunderbird
'54 Masteramp, '60 99j, '66 Thunderbass, '69 Thunderstar, '92 G-500
'08 Parlor, '10 Butternut Deuce, '13 Rounder, '14 Kulakeiki
'94 G&L Legacy
'03 Elder Lute
Sounds simple enough - and that's what it sounded like. Thanks.