Acquired direct from a University Lab.

These have been tested to be working and have a multivoltage selection on the rear panel allowing usage worldwide.

Especially useful for Cassette Deck or other Audio Equipment to measure Voltages and Decibels.

Record Calibrations typically call for 400Hz @ 0dB and 15kHz @ -20dB to be measured while setting up recording sensitivity and Bias. So, armed with one of these and a signal generator feeding in the tones you can start to experiment.

If you were to purchase Two of these then you may measure both left and right channels together which would be very handy indeed.

With some quality test tapes you could also calibrate playback levels, azimuth, head height, meter levels etc very accurately.

You will need a power cord and bnc cable with adaptor to connect to your equipment which are freely available on ebay at low cost.

Please ask if you have any queries.

Pictures are representative and may not be the exact one supplied. I am happy to send pictures of your unit before purchase for peace of mind.