ٹنکی میں پانی کی سطح کی اطلاع

Parts List

1 PC board, code 05104021, 80 x 50mm

1 plastic case, 130 x 67 x 44mm

1 PC-mount RCA socket

1 RCA plug

1 2.5mm PC-mount power socket

1 12V AC 500mA plugpack

1 100gm spool 1.0mm enamelled copper wire

1 length 8mm-OD clear PVC tubing to match height of tank plus 200mm

2 3mm x 20mm screws and nuts

2 10mm spacers

Semiconductors

1 LM3914 linear dot/bar driver (IC1)

1 NE555 timer (IC2)

1 BC558 PNP transistor (Q1)

1 78L12 12V regulator (REG1)

4 1N4004 diodes (D1-D4)

5 5mm green LEDs (LEDs1-5)

1 5mm red LED (LED6)

Capacitors

1 100μF 35VW PC electrolytic

1 47μF 16VW PC electrolytic

1 10μF 16VW PC electrolytic

1 0.1μF greencap

Resistors (0.25W, 1%)

1 820kΩ 1 82kΩ

1 680kΩ 2 2.2kΩ

1 560kΩ 1 1.5kΩ

1 330kΩ 9 1kΩ

1 220kΩ 1 390Ω

1 100kΩ 1 470Ω trimpot

Miscellaneous

Light-duty figure-8 cable, 2.5mm PVC sleeving, heatshrink tubing.

Reference

http://www.siliconchip.com.au/cms/A_30607/article.html