I am not too good with circuitry and electronics, but I am trying out a pong console project. I have an AY-3-8500-1 that needs an external clock. I want to control how fast the game moves and I think I can do this either with a switch to choose between two

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Anonymous 11/22/14 (Sat) 23:21:44 No.130

I am not too good with circuitry and electronics, but I am trying out a pong console project. I have an AY-3-8500-1 that needs an external clock. I want to control how fast the game moves and I think I can do this either with a switch to choose between two clocks or use an LMS555 and a tuning resistor to change the clock speed. Would this work or is there some problem or some safeguard put in the chip to prevent this?

Anonymous 11/23/14 (Sun) 19:54:08 No.131

How is this ham radio related

Anonymous 11/23/14 (Sun) 21:22:53 No.132

>>131
I just went to the list of boards and clicked the first one that said electronics. Sorry if this is not the right place.

Anonymous 11/24/14 (Mon) 05:46:07 No.134

I regret to tell you that a 555 timer will not reliably oscillate at that frequency.

It's expensive, but multiple crystals is the way to go.

It will save you the headache.

Anonymous 11/24/14 (Mon) 05:51:20 No.135

Link related, more expensive.
www(dot)digikey(dot)com/product-detail/en/ECS-20-20-1/X068-ND/17605