Vintage General Electric UPX-003B Tube Phono And Microphone Preamplifier 6SC7 4W.With box.Mono. Very Good overall condition.

The UPX-003B preamp was designed to be used with G-E variable reluctance cartridges.

Sufficient gain is provided to operate the cartridge with a standard radio receiver or audio amplifier.

Equalization in the preamplifier itself provides bass boost to confirm with the RIAA record industry standard.

While intended primarily for use with G-E cartridges, the preamplifier may be used with any magnetic cartridge having a peak output up to 50 millivolts.

The unit is completely self-contained and ready to operate when connected to a power source.

Specifications

Height: 3 3/4″

Dimensions: 3 5/8 x 3 5/8 x 1 1/4 inches

Weight: 1 1/4lbs

Finish: zinc plate with lustre protecting treatment

Rating: 105-125V AC 50/60 Hz

Tube: type 6SC7

Rectifier: selenium type

Gain: 32dB