Jag kan ha drömt detta för jag hittar inget på webben nu...men visst var det rykten eller fakta om att MS-20mini hade en extra krets jämfört med originalet som stabiliserade tuningen...om det var så vilket jag har fått för mig , kan det inte vara så på Karpen också ?
På något sätt får jag samma feeling på MS-20kit också att den på något odefinierbart sätt är för clean. Clean eller inte så är dock Karpen good value for money , helt klart.
Edit:
Jo jag hittade på muffwiggler.
re. "now digitally stabilized"
I had a feeling they would do this based on my analysis of the Monotron Duo schematics.
To see how this is likely implemented, take a look at what the Duo does:
http://www.korg-datastorage.jp/Manua...%20DUO_sch.pdf
1. The control voltage from the ribbon "keyboard" and the vco knob get routed through a 16-bit MCU microcontroller:
http://www.ti.com/product/msp430g2231
2. VCO1 sends a signal back to this MCU which analyzes the frequency and a) corrects excessive pitch drifting do to oscillator-circuit instabilities and b) if enabled, quantizes the notes to the Monotron Duo's scales.
This is a logical way of saving money during the factory calibration process and by not having to carefully spec temperature-coefficient resitors (tempco's) and other components that can cause excessive oscillator drift.
I'm sure this isn't any kind of hard quantization and perhaps they allow some drifting that's consistent with the original MS-20. Or maybe the circuit can't correct the pitch perfectly and you still get the equivalent drift.
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Ursprungligen postat av Firechild
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