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1652-A: Difference between revisions
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The '''General Radio 1652-A Resistance Limit Bridge''' was introduced in 1951 Catalog M and remained available through Catalog T 1968. | The '''General Radio 1652-A Resistance Limit Bridge''' was introduced in 1951 Catalog M and remained available through Catalog T 1968. | ||
Based on a [[wikipedia:Wheatstone bridge|Wheatstone bridge]] circuit, the Type 1652-A will compare the unknown to an external or internal standard and display difference as a percentage. | |||
Its internal standard is made up of seven [[510|Type 510 Decade Resistance]] units connected in series. | |||
==Specifications== | ==Specifications== | ||
* '''Resistance Range:''' As a limit bridge, 1 ohm to 1,111,111 ohms with internal standard; for null measurement, 1 ohm to 1,111,111 ohms with internal standard | * '''Resistance Range:''' As a limit bridge, 1 ohm to 1,111,111 ohms with internal standard; for null measurement, 1 ohm to 1,111,111 ohms with internal standard | ||
* '''Voltage Applied to Unknown:''' The voltage across the unknown one volt when the meter indication is zero. | * '''Voltage Applied to Unknown:''' The voltage across the unknown one volt when the meter indication is zero. | ||
* '''Accuracy:''' As a limit bridge, ±0.5% or better; for matching, ±0.2% | * '''Accuracy:''' As a limit bridge, ±0.5% or better; for matching, ±0.2% | ||
* '''Limit Range:''' Meter reads from | * '''Limit Range:''' Meter reads from –20% to +20% | ||
==Links== | ==Links== | ||