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* [[Media:GR 1232-A Detector_Amp 1232-0100-00 12_1988.pdf|General Radio 1232-A Tuned Amplifier and Null Detector 1232-0100-00 12_1988]] | * [[Media:GR 1232-A Detector_Amp 1232-0100-00 12_1988.pdf|General Radio 1232-A Tuned Amplifier and Null Detector 1232-0100-00 12_1988]] | ||
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The '''General Radio 1232-A Tuned Amplifier and Null Detector''' was introduced in | The '''General Radio 1232-A Tuned Amplifier and Null Detector''' was introduced in {{Catalog Q}} and remained available through {{Catalog 1978}}. | ||
The Type is a solid state battery operated tuned amplifier and null detector. Its tuned frequency range covers 20 to 20 kHz in 5 bands plus a flat response setting. As a null detector its part of the GR [[1660-A]] Inductance and [[1620-A]] Capacitance Measurement Systems. Battery operation is provided by 9 now obsolete M72 cells. The instrument used for this article has been converted to a rechargeable battery pack. The instructions for this conversion are covered in a document below. | The Type is a solid state battery operated tuned amplifier and null detector. Its tuned frequency range covers 20 to 20 kHz in 5 bands plus a flat response setting. As a null detector its part of the GR [[1660-A]] Inductance and [[1620-A]] Capacitance Measurement Systems. Battery operation is provided by 9 now obsolete M72 cells. The instrument used for this article has been converted to a rechargeable battery pack. The instructions for this conversion are covered in a document below. | ||