Pulse Circuit

After having a chat with Joasia about the problems I’m having with making the buzzer buzz, she put me in contact with Peter White. I explained what I was trying to do and showed him Simon. He then got out this big box of electronic tricks with dials and a little TV screen built in, switched it on, twiddled a couple of the dials, stuck a couple of probes onto the buzzer which then buzzed. He twiddled a dial somemore and it still buzzed but a bit higher. He then explained that what I need is a pulse circuit which essentially runs at different frequencies to produce a different pitch from the buzzer. As I was gonna need 4 different sounds I was gonna need 4 circuits. Still not really knowing much about electronics I asked him how I could make one. He rang someone else in his department who had an idea that might work. On the electronics course, they have to make some sort of organ which essentially is a load of pulse circuits on a board and hopefully there’ll be an old one lying around that I could have and then bend into a Simontron.

You have no idea how pleased I was when I heard that. After spending weeks going thru’ the board in Simon and running a current thru every single pot and getting more and more frustrated thuis this was fantastic news. I’ve got to pop along to a lab and see speak to someone else who hopefully will be able to track one down for me. I’m gonna see him Monday morning and with any luck I’ll be back on track.