DIY Powersupply

This power supply is easy to build and fun to make. It will have 2 meters 1 for voltage and 1 for current. They will both be DC voltmeters, for the amp meter we will use a shunt resistor.

Here’s the part list:

Qty

Name

All Electronics Cat#

Sub-total

total

1

LM317T Adjustable regulator

LM317T

$0.70

$0.70

1(Min qty is 10)

270Ω ¼W resistor

291-270

$0.065

$0.65

1

5k pot

NLTP-5K

$0.75

$0.75

1

Voltage knob

KNB-125

$0.50

$0.50

2

Spring terminals

SWT-202

$0.50

$1

1

24VDC WALL WART

PS-2414

$8.45

$8.45

1

Bridge Rectifier

FWB-14

$0.40

$0.40

1

3300µF Capacitor

3300R50

$1.60

$1.60

1

1Ω 50W Resistor

1-50

$2.75

$2.75

1

20V Voltmeter

PM-120

$15

$15

1

200mV Voltmeter(current)

PM-122

$15

$15

2

+5VDC Regulator

7805T

$0.50

$1

1

Fuse holder

FHPM-31

$1.25

$1.25

1

1A Fuse

FS-1

$0.75

$0.75

 

Sub-total

 

 

$49.80

 

Shipping

 

 

$8

 

Total

 

 

$57.80

 

YouTube video

Schematic

Published by Justin Roeder

I am an electronics engineer and computer programmer that has autism. I learned by myself

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