932 Beckman Electrometer Tetrode Sylvania 1229 Derivative Type 32 Vacuum Tube

This is an original 932 Beckman Electrometer Tetrode replacement tube originally a green Sylvania 1229 derivative based on the Type 32 vacuum tube and selected for lowest grid current with additional shield added. A rare, hard to find, classic four pin tube. It is useful in many older instruments, special circuits, VTVMs, old time receivers, transmitters and transcievers. Useful for antique radio, instrument restoration projects or to set up a private vacuum tube museum.

---

HISTORICAL TECHNICAL COLLECTIBLE Features: • 932 Beckman Electrometer Tube • Possibly a Sylvania 1229 Derivative • Based on the Sylvania Type 32 • High quality Made in USA • Low grid current selection • Filament: 2 V, 60 mA • Plate: 180 VDCmax • Base: 4-pin • Discontinued Collectible Tube Notes: • Unused • Price: $20 • One available • Without box • S/H included within continental US

---

• Only one item available unless otherwise indicated • Click the credit card pictures left to order • • E-Mails always answered unless return e-mail is blocked