AK-147 0-30V 1.5A Regulated Power Supply Kit

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0-30V 1.5A Regulated Power Supply Kit

This is a DIY Power Supply Kit especially made for schools. It contains all the components required to make their own 0-30V up to 1.5A regulated power supply. It is adjustable for current and voltage ranges from 0 to 30 V with a maximum of 1.5A using a potentiometer knob. It also has a protected circuit for current and indicates the maximum is reached when LED is activated on the board. A colourful manual is included for more instructions on soldering.

The black PC board has gold plated holes for easier soldering and better quality.

Instructions and more details are included in the manual under the "Attachments" tab.

Note 1) This kit is not for beginners and requires a basic understanding of Soldering and handling AC Power.

          2) The kit does not include the 24V Transformer power supply. Sold separately (TRF-165).


  • Supply Voltage: 24VAC 2A Transformer
  • Output DC Voltage: 0-30V DC
  • Output Current: 0 to 1.5A
  • Regulation < 0.05%
  • Ripple < 5mV Pk – Pk
  • PCB Size: 97 x 83 x 2 mm (W x L x H)

Components Included:

1 x AK-147 PCB Board                                    
4 x 1N914 Zener Diodes
2 x 1N4734 Zener Diodes                                 
1 x 1N4004 Diode         
2 x 2N4124 NPN Transistors
1 x 2N4126 PNP Transistor                              
1 x 2.2Kohm/2W Resistor                                
1 x 100ohm 1/4W  Resistor               
2 x 1.1kohm 1/4W Resistors
1 x 220 ohm 1/4W Resistor
1 x 4.7 ohm 1/4W Resistor
1 x 1.5k ohm 1/4W Resistor
5 x 10k ohm 1/4W Resistors
1 x 56k ohm 1/4W Resistor
2 x 4.7k ohm 1/4W Resistors
2 x 2.2k ohm 1/4W Resistors
1 x 27k ohm 1/4W Resistor
1 x 33k ohm 1/4W Resistor
1 x 39k ohm 1/4W Resistor
1 x 0.25ohm 3W Resistor
1 x 47pf Ceramic Capacitor 
2 x 0.1uf Ceramic Capacitors
1 x 330pf Ceramic Capacitors
1 x 2200uf 35V Capacitor
2 x 100uf 35V Capacitors
2 x  8 Pin IC Socket
1 x LM741 IC 
1 x RC4558 IC
1 x 5mm Red LED
1 x 2KBP02M Bridge rectifier 
1 x 2 pin Terminal Block
1 x 3 pin Terminal Block
1 x 2Kohm Trim potentiometer
1 x 10kohm potentiometer
1 x TIP121 Transistor
1 x Heatsink for TIP121
1 x Colored Instruction Manual

MANUAL (AK-147_ENGLISH_.pdf, 231 Kb) [Download]

Manual (AK-147_French_modified.docx, 631 Kb) [Download]