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The amp chassis is the Electro-luminescent one from around 1967.
The speaker is a mid-late 1960's JBL D-140.
The dolly and the grille appear to be original.
The cabinet is a non-flip top with no Tolex on it.
I don't know if the cabinet is an original ampeg or if he had someone make it.
It needs power supply caps and pretty much every electrolytic cap changed.
I'm debating on whether to change those or leave it.
Not sure if changing the caps will affect the value.
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True, caps have a date code stamped on them. They last only a certain amount of years before they dry up.
I replaced all the caps in a vintage piece of gear once, and it made all the difference.
This thing pops, sizzles and crackles and hums, which is exactly what happens when both the P/S caps go bad (hum) and the tone circuit goes (circuit crackles and sizzles)