ADC 1700DD Turntable Restoration - The Speed Controls

It's all about the speed – Quartz Lock Button and Speed Adjustment

On the left side, we've got this cluster of controls and indicators.

So, you select the record speed when you power on the unit (previous post), but here we can lock it in or tweak it. Interesting feature, but not sure what need it’s fulfilling. Based on a quick test, it looks like you can tweak the speed +/- 10%.

#VintageAudio #Turntables #ADC #Restoration #SpeedControl #Retrotech

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