Oliver Powerflex P502
Here are some schematics I have for the Oliver P502. I realize that this is not a Portaflex amp, or even an Ampeg amp. However, since it was Jess’ new twist on his original Portaflex concept (after starting his own company), I think it’s appropriate that it’s included. The first file is a schematic of the amplifier itself. I redrew it from a photocopy but tried to closely match the appearance of the original.
The second is a schematic of the cabinet wiring.
P502 Cabinet Wiring Schematic (PDF)
The third is more of a logical diagram of the cabinet wiring and is meant to more closely resemble what is actually seen inside the cabinet. Please note that the wire colors shown are based on the wiring of my particular cabinet, and may not match others. According to Jess Oliver there was not a strict color-code followed when wiring the cabinets.
P502 Cabinet Wiring Diagram (PDF)
(Update, 12/18/09 – I just realized that the P502 Cabinet Wiring Diagram PDF that was posted here was incorrect. It was a duplicate of the P502 Cabinet Wiring Schematic. The correct file is now posted)