Variable Speed Drive or variable-frequency drive. Old tech controlling the speed or torque of electric motors. This one is powering up with a pitched screech.

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File type: audio/wav

File size: 55 KB

Length: 0:030 minutes, 3 seconds

Bitrate: 176kb/s CBR

Tags drive, electric, electromechanical, electronic, hydraulic, inverter, motor, power, screech, speed, torque, variable

Electrics House Humans Sound Effect

Rotary phone dial

Post author By redsoul
Post date May 18, 2020

The good old days when we all had to deal with that pulse dialing.

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File type: audio/wav

File size: 502 KB

Length: 0:060 minutes, 6 seconds

Bitrate: 706kb/s CBR

Tags beep, call, code, corded, cordless, dial, old, phone, pulse, radio, ring, ringtone, rotary, signal, sound, spaces, telephone, wall

Electronics Humans Sound Effect

Cash register/ Pay phone

Post author By redsoul
Post date May 18, 2020

This could be a payphone or a cash register. What do you think?

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File type: audio/wav

File size: 157 KB

Length: 0:020 minutes, 2 seconds

Bitrate: 706kb/s CBR

Tags booth, coin, mechanical, money, phone, public, register, telephone