James. I think that on your speed pot your open terminal needs to be tied to
the center terminal. Just a thought.Lance
the center terminal. Just a thought.Lance
On Sat, Apr 4, 2009 at 8:47 PM, James Elliott <johans121@...> wrote:
> Hello,
>
> Newbie here....
>
> I just got through building the Burst Generator and everything seems to be
> working fine except for the internal clock. It doesn't seem to be
> oscillating. I've spent the last 3 hours looking it over & honestly I'm too
> much of a newbie to even know how to properly troubleshoot this beyond the
> basics.
>
> -All resistor & capacitor values are correct
> -All diodes are oriented correctly (and are the correct type)
> -Solder connections have been checked for connectivity between pads
> -I am using a 2Meg pot for the internal clock's speed - only two wires
> soldered, one to the middle lug, and another to a side lug. Both wires are
> going to the "pot" pads on the PCB
> -pin 6 of the 106 seems to stay high all the time
>
> I do have a scope, and I've tested everything out with an external clock
> and I can see that the main bulk of the circuit is working.
>
> Can someone give me some tips on where to start looking?
> Also, can someone please explain to me how the clock works so I can make
> sense of it for future applicaions?
>
> Thanks,
> Jim
>
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>
>
>
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