General Radio Co. Type 1555-a Sound Survey Meter W/leather Case And Instructions

US $1300

  • Novato, California, United States
  • Mar 11th
 General Radio Company Sound-Survey Meter. Type 1555-A. In leather case. Case is in very good condition. There is a yellow tag attached to the strap of the leather case. It is a warning label-Do Not Expose to High Temperatures. The label was likely attached to the case when someone bought this years ago because it is from General Radio Co. Small instruction booklet fits in behind the meter in the case. It is the operating instructions booklet from General Radio Company and dated March 1960. From the operating instructions manual: It measures sound-pressure level at its microphone in terms of a standard reference level. Fundamentally, the instrument consists of a non-directional microphone, a calibrated attenuator, an amplifier, an indicating meter, and weighting networks to modify the amplifier response to conform approx. with the response of the human ear to pure tones at specified sound levels. There is a fold-out page in the rear of the instructions manual: Wiring Diagram for Type 1555-A Sound-Survey Meter.  Great condition.
Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...
Brand General Radio Company
Model 1555-A

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