![The one my grandmother owned had a turntable built in [447x464 - 455KB]](https://pic8.co/sh/gsYD9H.png){kind=link}
You mean the tuning fork model?
You mean the tuning fork model?
Some had tuning forks, yes. Later models generated the ultrasonic electronically.
Some had tuning forks, yes. Later models generated the ultrasonic electronically.
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