Vintage JBT Model 31-FX-50 Frequency Meter (48-52 Hz)
This listing is for a genuine vintage JBT (J-B-T Instruments, Inc.) analog frequency meter. This gauge is a "vibrating reed" type, known for its extreme reliability in industrial settings. It is designed to measure alternating current (AC) frequency for systems operating nominally at 50 Hz, specifically within the range of 48 to 52 Hertz. It is an ideal component for monitoring legacy power systems, industrial control panels, or for collectors of vintage electrical test equipment.
Item Details & Specifications
| Feature | Detail |
|---|---|
| Manufacturer | J-B-T Instruments, Inc. |
| Model Number | 31-FX-50 |
| Type | Vibrating Reed Frequency Meter |
| Measurement | Frequency (Hertz) |
| Measurement Range | 48 - 52 Hz (48, 50, 52 Hz marked reeds) |
| Operating Voltage | 100 - 130 V |
| Origin | New Haven, Conn., U.S.A. |
| Mounting Style | Round Panel Mount |
selling as pictured.
more than welcome to pick up at shop in butler pa & save shipping.
020226 jy