AK-20 LM317 Adjustable Voltage Power Supply Student Training Kit

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The AK-20 is an action-packed student power supply training kit. Once assembled it is not only useful but also visually stunning.

It comes with an attractive acrylic clear case and a three digit seven segment voltage readout. Includes a power supply, cord and output leads with alligator clips. Adjustable 2 Watt DC power supply with an output voltage range of 1.25 to 12VDC. Input voltage is 115VAC.

Click on the link to watch the assembly process: Assembly Video

In addition to being a 12 Volt DC variable power supply, this product has a buzzer to identify if a signal feed to its input is live, alternating or a modulated wave. It also comes with a DC pulse wave generator where you can tweak the duty cycle using the internal 100k potentiometer. The led indicators simplify for beginners in troubleshooting circuits. Blue led; If the power supply is offering any output voltage. Yellow led; the output result of the PWM using pin 4 and pin 2. Red and Green Led indicates active low and active high signals respectively using pin 5 and pin 2.

-Power: 2W
-Input Voltage: 110v ~ 115v
-Output Voltage: 1.25V - 12V variable output.
-PCB board size: 7.3 x 6.8cm (W/L)
-Shell Size: 11 x 6.9 x 4.1cm (L / W / H)
-Weight: approximately 295g
-PWM Frequency: ~800 Hz
-Duty Cycle: 44% - 100%

If you need a replacement transformer fot this kit, we have the TRF-11012.

AK-20 Guide (Ak-20_new.pdf, 1,813 Kb) [Download]

Notice for California Residents: Warning symbolWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov