The Hay Bridge is different from the Maxwell Bridge only in having a resistance in series with the standard capacitor instead of in parallel with it for large phase angles this change requires a low series resistance instead of a very high parallel resistance. The Hay circuit gives more convenient values of resistance and better balancing for high “Q” inductance coils. The actual circuit and formula are engraved on panel, terminals are provided for connecting, headphone and high “Q” unknown inductance. The 1 KHz Oscillator and tuned amplifier fitted with Micro Ampere meter as Null Indicator and power supply are builtin
Note: There may be any change in specification due to continuous R & D without notice.
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