CingKrab
100+ Head-Fier
- Joined
- Dec 8, 2002
- Posts
- 410
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- 17
Hi all:
Sorry for the off-topic post, since this isn't audio related. I'd appreciate any help from you guys though.
I've built something like this:
http://www.discovercircuits.com/PDF-...F/ONESHOTS.pdf
on both a breadboard and a protoboard. However, only on the protoboard, there is a short spike on the output when the power is turned on. It is rounded. The oscillator works properly after the power is on. However, the output is hooked up to a flip-flip ring counter, and this spike causes the ring counter to start earlier than I want, which kind of screws up my whole circuit. Without this problem, the circuit works perfectly on the breadboard. I do not see the spike on the input (and anyways it should be a fairly square pulse on the output
if there's is an input pulse). What can cause a spike like this?
Sorry for the off-topic post, since this isn't audio related. I'd appreciate any help from you guys though.
I've built something like this:
http://www.discovercircuits.com/PDF-...F/ONESHOTS.pdf
on both a breadboard and a protoboard. However, only on the protoboard, there is a short spike on the output when the power is turned on. It is rounded. The oscillator works properly after the power is on. However, the output is hooked up to a flip-flip ring counter, and this spike causes the ring counter to start earlier than I want, which kind of screws up my whole circuit. Without this problem, the circuit works perfectly on the breadboard. I do not see the spike on the input (and anyways it should be a fairly square pulse on the output
if there's is an input pulse). What can cause a spike like this?