Refresh

GWHunter

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Mr. Tinhorn,

Wen't to RS today to pick up components for refresh circuit. All three stores in town have discontinued the GP Diode.:cry-blue:

Can I substitute a 1n914 or some other?
 

Tinhorn

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GP meant General Purpose, almost any diode will work except a zener.......

1N914 is what I use,  a 1N400X will work too (the X being any number)

Sorry for the label confusion.  

I see I left off one of the Pin ID numbers on the OptoCoupler.  The output is pins 4 & 6.  

Also, I started putting a .1 uf cap from Batt Pos to Batt Neg on the Printed Circuit board, some (one) of my PIRs was extra sensitive I guess and the refresh pulse triggered it, taking a pix every 7 mins  :(

I've built 4 Refresh Circuits now and only one gave me this problem (the last one I built, naturally)  I'd put this cap as close to pins 1 & 8 as possible.

Tinhorn
 

GWHunter

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Thank You Very Much:smile-blue

I'm glad I picked up the 1n's just in case!

Thanks also for the add. info.

I'm off to play now:smile-big-blue:
 

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