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the prettyLow Drain Flasher circuit with BJT

baba101

Nov 15, 2017
4
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Nov 15, 2017
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4
Here I present a very low drain circuit .

This is led flasher at .7sec delay ... takes .89mA

Please confirm if my measurement is correct .

Feature :
works from .7V also
just two value resistor cover wide vcc

for .7 - 3v keep Rx 220E
and for 5-16V Rx is 47k
 

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73's de Edd

Aug 21, 2015
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3,613
Explain how the "LEAKY" 47 ufd electrolytic, being inserted into the power supply input line, to feed the circuitry, fits into the grand scheme of the units design plan ?
 

baba101

Nov 15, 2017
4
Joined
Nov 15, 2017
Messages
4
Explain how the "LEAKY" 47 ufd electrolytic, being inserted into the power supply input line, to feed the circuitry, fits into the grand scheme of the units design plan ?
great catch.. that one helps it to start Off, else needs a dab of voltage to make it , probably a diode in series will help cut the leak ?
 

Audioguru

Sep 24, 2016
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Sep 24, 2016
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Can't you see that the polarity of the 47uF capacitor is backwards?
 
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