For Rotary Tattoo Machines.

                                 For the Absolute Control of  Electric Motor Rotary Tattoo  Machines.
Just flip the switch !

Setting the speed on a rotary machine by adjusting it's input voltage-only-,

offers a really "narrow dimming window" (speed range )

and

Power (needle velocity ) drops along with frequency of punctures (motor speed ).

...
No more !
By sending pulses of the suggested motor's operational Voltage (9-15 Volts usually),

at certain frequency and with certain pulse duration ( Width ) ,

 the speed of motor ( RPM ) can be precisely adjusted,

without necessarily  'sacrificing' puncture power.

Various large needle sets can pop in and out  the skin at high velocity ,even if the motor 

works at reduced rpm .

Mode: PWM DC Output (Basic).

 -Voltage Output Range : 1.25 - 15.5 Volts DC.

- Frequency Set Range: 100Hz - 20 kHz .( up to 1 MHz capability on request.)

- Duty Cycle ( Mark )  Set Range: 10%-100 % 

   

Mode: PWM DC Output (Single Pulse Plot ).

-Real-Time Single Pulse Plot . 
 -Voltage Output Range : 1.25 - 15.5 Volts DC.
- Frequency Set Range: 100Hz - 20 kHz .( up to 1 MHz capability on request.)
- Duty Cycle ( Mark )  Set Range: 10%-100 %

( The above picture "caught still" the  drop of Frequency,while setting it via it's dedicated adj.knob.

From 69 Hz to 68 Hz.Thus,the "ghost " vertical line in the plot groph and the "mystery"

second digit of Frequency value . )