Turntable Start Button

I Power On the Front 

Center Detent Knobs

Easily Switch 33/45

"...a shockingly big deal — the ADS is killer."   - Scot Hull

The ADS design includes two pure analog frequency generators featuring low distortion and noise; a high current Class-A/B amplifier that is transformer-coupled to the turntable output; analog control logic for low noise operation; 33/45 RPM analog speed adjustment controls with center detente positions that are factory calibrated.  Created by our Director of Electrical Engineering, Michael Bettinger.

Click here to download the ADS Manual


Key Features:

The Machine:

  • The platter is started and stopped by the front panel Run/Stop momentary push button switch.

  • The front panel contains a two-position push button switch for selecting either 33 RPM or 45
    RPM operation.

  • There are separate speed adjustment controls for 33 and 45

  • The controls have a detented center position that is factory calibrated for 60 Hz (33 RPM)
    and 81 Hz (45 RPM).

  • The speed is  continuously adjustable +/- 3 Hz  

  • Blue LED indicators adjacent to the controls indicate which speed is set at a glance.

Additional Specifications:

Line Voltage:                        115/230 VAC Factory set
Line Frequency:                   50/60Hz
Line Fuse:                             1 amp (Slo-Blo)
Output voltage:                   115/230 VAC Factory set
Start Voltage:                       120/240 VAC
Run Voltage:                         90/180 VAC
Output Frequency:              50Hz/60Hz Factory Set
Output Frequency Range:
                                               60 Hz Center Detent: 60Hz @33 RPM & 81Hz@ 45 RPM
                                               50 Hz Center Detent: 50Hz @33 RPM & 68Hz@ 45 RPM
Control Range                      +/- 3Hz
Output Power:                     15W
Dimensions:                         16” X 4” X 12” (W X H X D)
Weight:                                  10lbs