Pair of Vintage Pickering Model 163A Equalizer EQ Record Compensator Daven 1948

Description

We are selling a pair of Rare vintage Pickering model 163A Equalizers EQ record compensator units from 1948.  These units have been bench tested and are working.  There is wear from use/storage like scratches, scuffs and dust.  Sold AS IS, please see high-res photos for more details.
Details:
Pickering & Co. Inc
Oceanside N.Y. USA
Model 163A
Serial #: 631039 & 631043
Daven attenuator dial plates 1-5 positions
Passive components and matched well together.
Details from catalog (1948):
Positions:
1) Flat high frequency response to over 15,000 cycles per second.  Low frequency rise to give full compensation from 500 to 40 cycles
2) Flat high frequency response. Low frequency response approximately 5 dB below position 1.
3) for NAB or Orthacoustic transcriptions.
4) Low frequencies same as position 2, high frequencies sharply attenuated to reduce surface noise.  Attenuation starts at 4000 cycles
5) Low frequencies same as position 1.  High frequencies same as position 4.
-Made to a tolerance of +/- 1 dB, provides five different lateral characteristics to equalize properly all types of records and transcriptions.  It is designed for use with 250 to 600 ohm input circuits at a level of -60 dbm.  Hum pickup is less than -120 dbm.
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Sold AS IS
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