Bare 555 PCB

Discussion in 'Marketplace' started by inwo, Dec 7, 2013.

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  1. inwo

    Thread Starter Well-Known Member

    Nov 7, 2013
    I have 10 or so of these homemade bare PCBs from long forgotten project.

    ~1 1/8" X 3"

    Price of a stamp and label for one. "or less" PM me!

    Drilled for 555, 3 term header from pin 3 and supply, 2 standard slotted optic sensors (shown marked), and various R, D, and Cs.

    Pin 7=nc.

    As I recalled it used 555 as flip flop with some timing to wind and unwind a scroll passing thru slot sensors.
    Pin 3 driving dpdt reversing relay. Always on.

    Should be a small step above a proto board. :eek:

    Sorry, photography isn't my thing.
    What do you want for free? :)
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