[sdiy] [SDIY] Frequency regulating circuit

[Ken Stone]

If you could invent a circuit that did that you'd be rich!

Try finding the master clock and tweaking it. It may be a ceramic resonator,
or as simple as an external resistor. Or you may just be plain stuffed....

Ken

 
>Hi people! I have an old toy keyboard i'm trying to transform into a
>legitimate instrument but it is tuned a semi tone up! It is impossible to
>change this internally because this is one of those sound generators on a
>chip type keyboard.
>
>Do you know of any circuit that can shift up or down the frequency of a
>sound to a certain frequency value? And i'm talking cheap and analogue!
>
>
>Thanks
>
>diogo
>Hi people! I have an old toy keyboard i'm trying to transform into a
legitimate instrument but it is tuned a semi tone up! It is impossible to
change this internally because this is one of those sound generators on a
chip type keyboard. 
><br><br>Do you know of any circuit that can shift up or down the frequency
of a sound to a certain frequency value? And i'm talking cheap and
analogue!<br><br><br>Thanks<br><br>diogo<br>
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>