Glow Plug Heater

for RC models

Published in issue 343, May 2005

Resistors:

R1 = 470

R2 = 4k7

R3,R4 = 1,5

R5 = 10k

R6 = 0,05 (50 mOhm)

R7 = 1k

P1 = 10k logarithmic law potentiomeer

Capacitors:

C1,C2,C3,C6 = 100 nF

C4 = 10µF/25 V

C5 = not used

C7 = 1µF 25V

C8 = 10nF

Semiconductors:

T1 = BC547

T2 = BC557

T3 = BUZ11

T4 = BS170

IC1 = ST7FLITE05 (programmed, order code 040239-41)

IC2 = 78L05

D1 = LED, red, 3mm, ultrabright

D2,D3 = LED, orange, 3mm, ultrabright

D4-D7 = LED, green, 3 mm, ultrabright

D5 = 1N5820

Inductors:

L1 = 47µH

Miscellaneous:

S1 = pushbutton, 1 make contact

K1,K2 = 2-way PCB terminal block, lead pitch 5mm

PCB, ref. 040329-1, available from The PCBShop