NOS RCA JAN-1P21 Photomultiplier PMT 1968 Tested Original Military Box

Listing details

Offered here is one vintage RCA JAN-1P21 side-on photomultiplier tube, manufactured in the USA in 1968.

The tube is marked “JAN-1P21,” RCA and “Made in U.S.A.” Its 68-43 date code indicates production during the 43rd week of 1968. The matching original military box is marked “Date Pkd. 10/68.”

Identification and specifications:

• Manufacturer: Radio Corporation of America — RCA

• Type: JAN-1P21 photomultiplier tube / PMT

• Construction: Side-on, nine-stage photomultiplier

• Photocathode: Sb-Cs visible-range type

• Spectral response: Approximately 300–650 nm

• Peak response: Approximately 400 nm

• Base: 11-pin JEDEC B11-88

• Maximum anode-to-cathode supply rating: 1,250 VDC

• FSN shown on box: 5960-262-0305

• Later NSN format: 5960-00-262-0305

• Contract: DSA-900-69-D-0435

• Tube date code: 68-43

• Box packing date: 10/68

• Country of manufacture: USA

Typical applications include vintage photometers, spectrophotometers, spectroscopy equipment, scintillation or radiation-detection instruments and other low-light scientific measurement systems. This is a scientific photomultiplier tube, not an audio amplifier tube.

TESTING

Seller-tested and verified to produce a basic functional response. This is a functional confirmation, not a calibrated laboratory certification. No quantitative gain, sensitivity or dark-current report is included.

Because a photomultiplier requires a suitable high-voltage divider, socket and measuring circuit, buyers should confirm compatibility with their particular instrument before purchasing. Qualified technical use is recommended.

The original military box is included and shows substantial age/storage wear. The white T05896 inventory or inspection label remains attached to the glass. No socket, divider network or additional accessories are included.

You will receive the exact tube and box shown in the photographs. It will be carefully packed in a rigid shipping box.

tmp-32-D