Antique Electronics and Vintage Solid State

Krohn-Hite 430-AB Audio Oscillator

I recently came by a Krohn-Hite 430-AB audio oscillator. I rather enjoy Krohn-Hite’s old tube test equipment, as they make heavy use of vacuum tube op amps.

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Does anyone have a scan of a manual for the 430-AB that they could share?

Probe accessories for the GR 1806-A VTVM

Over on the Antique Radio Forum, Philip Colston was asking about accessories for the RF probe of the General Radio 1806-A VTVM.

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It turns out that the tips are identical to the accessory tips for the Tektronix P6000-series scope probes:

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