You'll probably find that the PSU it comes with will take a 110-250v supply anyway. The one that arrived with my demo board certainly did, so all I needed was a 1.50 GBP shaver adapter.
Be careful with that though, the transformer is a simple step down and will work with higher voltage, but its output will shift from 9 to 12 or 15, that's too much for some 5V regulators and definitely will make them HOT if not burn out all together, the hydra for example uses standard 78mxx regulators and likes no more than 9V on its input, 12V will work, but regulators start getting pretty toasty like that.
AndreL said...
Also, the audio output on the demo board is slightly different, so the filtering might not act the same
So this is totally the synth geek in my speaking, but do you have any tweakable analog filters on the output? I've been thinking about strapping a tunable bandpass and resonator onto my Propeller, get some hybrid synth going. (Built some MIDI instruments with the Stamp a decade back.)
You can make simple digital output sound much neater with a little bit of analog trickery. Look at the SID.
No analog changeable stuff there, but you can do a lot in the digital domain, I would just do stuff there, like we are mixing 11 channels of 22KHz, PCM and synthed sine, square, tri, etc. all together and PWMing it out. Just remember at the end of the day all teh sound comes out of a little 2" mono speaker on most TVs [noparse]:)[/noparse]
AndreL said...
No analog changeable stuff there, but you can do a lot in the digital domain, I would just do stuff there, like we are mixing 11 channels of 22KHz, PCM and synthed sine, square, tri, etc. all together and PWMing it out. Just remember at the end of the day all teh sound comes out of a little 2" mono speaker on most TVs [noparse]:)[/noparse]
Andre'
True, but that never stop anyone from trying in the past. ^^
Got the kit today! The power supply is American :-(; I think I have at least 10 power supplies at 110/120V/60Hz counting this one.
I wonder, is it so expensive to include an universal power supply ?
The board looks to me like a larger Propeller Demo board. :-O
The book looks amazing !
As I ordered some months ago the Propeller add-on kit now I have two identical Parallax mini-keyboards and two Parallax PS2-mice!!!
Comments
andre'
So this is totally the synth geek in my speaking, but do you have any tweakable analog filters on the output? I've been thinking about strapping a tunable bandpass and resonator onto my Propeller, get some hybrid synth going. (Built some MIDI instruments with the Stamp a decade back.)
You can make simple digital output sound much neater with a little bit of analog trickery. Look at the SID.
Andre'
True, but that never stop anyone from trying in the past. ^^
I wonder, is it so expensive to include an universal power supply ?
The board looks to me like a larger Propeller Demo board. :-O
The book looks amazing !
As I ordered some months ago the Propeller add-on kit now I have two identical Parallax mini-keyboards and two Parallax PS2-mice!!!
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