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Got hopefully the 1st of many CA3045 Tweety Bird modules built. The circuit provided did not include the "fires on keydown" feature. Anyone know what to add to do this?

Many thanks

wait, are you trying to install an, "i ran out of good comebacks" button?

not sure what its like in your neck of the woods, but around here, people that use those things get referred to as whiny (term for a female dog)'s.

maybe im thinking of a different device.
LC

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"Hatu hatu ziggedy beem bomm boom, hatu" -Mel Brooks

Easy! Just connect it to 110vac and it will fire.
n9zas

you need to add a button with a capacitor across it and add it to the power lead.

By null at 2007-01-18

my most outfitted d104


By null at 2007-08-23

you need to watch the polarity of the cap to so as to not short it out .

how much you want for one?maybe i,ll buy one and tinker with it over here .

Hi Funky, No that's not it. An extra switch is not needed in order to fire-on-keyup. You'd have to push the dang button while keying up every time.

They're not terrifically easy to put together Funky my man. Takes about 2 hours plus acquiring the parts from various sources. I plan on putting them on ebay as Buy It Now for $60 and they will sell. I have sold the parts-only by themselves and been paid $50-60. All I can do is $50 shipped. Will be ready to use/install, tested and working.

TNX

Hook it up so the ground wire goes to ground when keyed. With a cap installed as described above you will have a "squirt" when it keys.

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BC

Hey thanks BC ! I'll give that a try later today and provide the results.

just add a cap to that button to hold the charge while resting and it should fire on keyup.

man i miss my birdie guy .i could buy those wholesale for 10 bucks .he would sell them on ebay for 15.00.those days are gone now .he doesnt return my emails.

on all mine all it is is a cap across the button to hold the charge while resting.increase capacitence and you get a longer whistle when you key.
thats how mine work.