Located a small, limited supply of 1960s era first run of Yellow Jacket capacitors. See other listing for other values.  These are polyester film capacitors with extended foil design and were wound from selected polyester film and thin gage foil under carefully controlled atmospheric conditions.  The ends were sealed of a plastic resin to assure long life.

pair Sprague .33 uF 100V 148P Yellow Jacket Capacitors 1960s vintage polyester film

Brand: Sprague

Type: Yellow Jacket 148P Polyester Film (mylar)

Value: .33 uF 

Voltage 100V

Measured Value: on spec.

Condition: new old stock

Test info: 0.0 uA current leakage at the rated voltage.

Date: circa 1960s

Notes: Suitable for any guitar or amplifier application up to the rated voltage