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The {{Title|General Radio 1218-B Unit Oscillator}} introduced in {{Catalog S}} and remained available through {{Catalog 1978}} in the form of the [[1218-BV]] model. | The {{Title|General Radio 1218-B Unit Oscillator}} introduced in {{Catalog S}} and remained available through {{Catalog 1978}} in the form of the [[1218-BV]] model. | ||
The 1218-B is an updated version of [[1218-A]] with improved frequency stability, | The 1218-B is an updated version of Type [[1218-A]] with improved frequency stability, and an updated Delta Frequency control for precise frequency adjustment. | ||
Being part of the [[Unit instruments|Unit Oscillator family]], it requires a separate power supply or a modulating power supply. | |||
==Specifications== | ==Specifications== |