Lantern Dimmer/Flasher
by Tony van Roon

Lantern dimmer, schematic

Parts List
R1 = 100K       C1,C3 = 10uF/16V
R2 = 100K          C2 = 0.01uF, ceramic
R3 = 100K          T1 = 2N4401
R4 = 100K          T2 = TIP32
R5 = 3K9           U1 = LM358     
R6 = 3K9           L1 = Lantern Bulb
R7 = 470           S1 = On-Off Switch
R8 = 100
R9 = 220, 1/2 watt
P1 = 5K
Additional Notes
ALL resistors are 1/4 watt, 5% tolerance, unless otherwise posted.
P1 is the dimmer potentiometer. S1 is an additional switch to activate the 'Flashing' mode. R9 has to be a half-watt type. T1 is a NPN audio amp transistor and can be substituted with a NTE123AP, the BC547, Elector's (Elektuur) TUN. T2 is a PNP power amp and can be substituted with a NTE197. Try others, they also may work.
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Copyright © Tony van Roon, CET