# 1644A General Radio Bridge Used

**Additional Features:**

-   Seven fixed test voltages are available (10 to 1000 V)
-   Although any voltage between 10 and 1000 V may be obtained using an external resistor.
-   Resistance range of 10E+03 to 10E+15 ohms with ±1% accuracy to 10E+12 ohms (Delta R measurements to ±0.2%)
-   Utilizes self-checking internal standards

The General Radio 1644A, Megohm Bridge, that is ideally suited to measure a wide range of resistance from the insulation resistance of cables, to high-valued resistors, diodes, transistors, to voltage and temperature coefficients of resistance, to volume and surface resistivity of solids.

## Details

- **Price:** 995.0 USD - 1310.0 USD
- **Vendor:** General Radio
- **Type:** Bridge
- **Tags:** Bridge, General Radio, Manufacturers, Other Equipment, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 995.00 USD | In stock |
| NIST Traceable | 1240.00 USD | In stock |
| NIST Traceable with Full Data | 1275.00 USD | In stock |
| ISO IEC 17025 Accredited | 1310.00 USD | In stock |

## Images

- 1644A General Radio Bridge

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> Source: [ValueTronics](https://valuetronics.com/products/1644a-general-radio-bridge-used)
> Updated: 2026-05-21