1650-B: Difference between revisions
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|model=1650-B | |model=1650-B | ||
|class=impedance measurement | |class=impedance measurement | ||
|summary= | |summary=Impedance bridge | ||
|image=GR 1650-B Front A.jpg | |image=GR 1650-B Front A.jpg | ||
|caption=General Radio 1650-B Impedance Bridge | |caption=General Radio 1650-B Impedance Bridge | ||
| Line 8: | Line 8: | ||
|introduced=1968 | |introduced=1968 | ||
|discontinued=1978+ | |discontinued=1978+ | ||
|designers= | |designers=Henry P. Hall | ||
|manuals= | |manuals= | ||
* [[Media:GRwiki 1650-B Impedance Bridge 1650-0120-8 08_1970.pdf|General Radio 1650-B Impedance Bridge 1650-0120-8 08_1970]] | * [[Media:GRwiki 1650-B Impedance Bridge 1650-0120-8 08_1970.pdf|General Radio 1650-B Impedance Bridge 1650-0120-8 08_1970]] | ||
* [[Media:GRwiki 1650-B Impedance Bridge 1650-0120-A 04-1968.pdf|General Radio 1650-B Impedance Bridge 1650-120-A 04-1968]] | * [[Media:GRwiki 1650-B Impedance Bridge 1650-0120-A 04-1968.pdf|General Radio 1650-B Impedance Bridge 1650-120-A 04-1968]] | ||
{{Catalog History}} | |||
}} | }} | ||
The | The {{Title|General Radio 1650-B Impedance Bridge}} was introduced in {{Catalog T}} and remained available through {{Catalog 1978}}. | ||
The Type 1650-B is the improved version of the iconic [[1650-A]]. | The Type 1650-B is the improved version of the iconic [[1650-A]] with specifications similar to its predecessor. | ||
Improvements include an added conductance bridge, slow motion dials for DQ and RCL, battery check setting on the function switch, and a side panel for connections preciously on the front panel. | |||
The battery compartment was redesigned, with the batteries contained in a removeable tube that is accessible after removing the bridge from its case. | |||
The 1650-B also features the "[[Orthonull]]" device that helps prevent a sliding null (see [[1650-A]]). | |||
==Specifications== | ==Specifications== | ||
* '''Capacitance:''' 1 pF to 1100 μF in 7 ranges | * '''Capacitance:''' 1 pF to 1100 μF in 7 ranges | ||
* '''Inductance:''' 1 μH to 1100 H in 7 ranges | * '''Inductance:''' 1 μH to 1100 H in 7 ranges | ||
* '''Resistance:''' 1 mΩ to 1.1 MΩ in 7 ranges | * '''Resistance:''' 1 mΩ to 1.1 MΩ in 7 ranges | ||
* '''Conductance:''' | * '''Conductance:''' AC or DC, 1 nS to 1.1 S in 7 ranges | ||
* '''D:''' (series capacitance) 0.001 to 1 at 1 kHz, (parallel capacitance) 0.1 to 50 at 1 kHz | * '''D:''' (series capacitance) 0.001 to 1 at 1 kHz, (parallel capacitance) 0.1 to 50 at 1 kHz | ||
* '''Q:''' (series inductance) 0.02 to 10 at 1 kHz, (parallel inductance) 1 to 1000 at 1 kHz | * '''Q:''' (series inductance) 0.02 to 10 at 1 kHz, (parallel inductance) 1 to 1000 at 1 kHz | ||
* '''Basic accuracy:''' ±1% of full scale, ±5% for dissipation factor | * '''Basic accuracy:''' ±1% of full scale, ±5% for dissipation factor | ||
* '''Internal oscillator:''' 1 kHz ±2% | * '''Internal oscillator:''' 1 kHz ±2% | ||
* '''Frequency range:''' 20 Hz to 20 kHz (to 100 kHz with reduced accuracy) | * '''Frequency range:''' 20 Hz to 20 kHz (to 100 kHz with reduced accuracy) | ||
==Links== | ==Links== | ||
* [[Media:GR Exp 1650-B 05_1968.pdf|Experimenter describing Type 1650-B | * [[Media:GR Exp 1650-B 05_1968.pdf|Experimenter May 1968 describing Type 1650-B]] | ||
==Photos== | ==Photos== | ||
Latest revision as of 03:03, 16 April 2024
The General Radio 1650-B Impedance Bridge was introduced in Catalog T (1968) and remained available through Catalog 1978.
The Type 1650-B is the improved version of the iconic 1650-A with specifications similar to its predecessor. Improvements include an added conductance bridge, slow motion dials for DQ and RCL, battery check setting on the function switch, and a side panel for connections preciously on the front panel. The battery compartment was redesigned, with the batteries contained in a removeable tube that is accessible after removing the bridge from its case.
The 1650-B also features the "Orthonull" device that helps prevent a sliding null (see 1650-A).
Specifications
- Capacitance: 1 pF to 1100 μF in 7 ranges
- Inductance: 1 μH to 1100 H in 7 ranges
- Resistance: 1 mΩ to 1.1 MΩ in 7 ranges
- Conductance: AC or DC, 1 nS to 1.1 S in 7 ranges
- D: (series capacitance) 0.001 to 1 at 1 kHz, (parallel capacitance) 0.1 to 50 at 1 kHz
- Q: (series inductance) 0.02 to 10 at 1 kHz, (parallel inductance) 1 to 1000 at 1 kHz
- Basic accuracy: ±1% of full scale, ±5% for dissipation factor
- Internal oscillator: 1 kHz ±2%
- Frequency range: 20 Hz to 20 kHz (to 100 kHz with reduced accuracy)
