rotordrive
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rotordrive [2012/05/04 08:41] – wadmin | rotordrive [2012/05/04 08:52] – wadmin | ||
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Design constraints were kept to the minimum : only components with nominal values (multiples of 10), only one gain control for the first stage. | Design constraints were kept to the minimum : only components with nominal values (multiples of 10), only one gain control for the first stage. | ||
- | The distortion is asymetrical and provided by the unique diode which can be connected or not according to the switch position. | + | The distortion is asymetrical and provided by either transistor power saturation or the unique diode at transistor stage 2. |
- | When switch is open, Rotordrive is in BOOST mode, providing a slight crunchy overdrive on single coil microphones, | + | When " |
- | When switch is closed, unit is in overdrive | + | When " |
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+ | The sound of this medal is somehow quite "brute force" | ||
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+ | The volume output pot is optional, recommended mainly for assembly in a case on a final product. | ||
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{{ : | {{ : | ||
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+ | The " | ||
+ | The " | ||
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+ | The Gain can be modified by changing the feedback resistors R4 and R9 | ||
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+ | Changing the transistors itself should result in higher gain (ex switching to BC550). | ||
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+ | Generally, this schematic can be easily extended on use. Consider having a good power supply regulation, according to the gain of this dual stage. | ||
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+ | Note : R13 should not be installed, it has been added for simulation purpose. The output of this pedal is the tip of the volume potentiometer. | ||
=== Operation === | === Operation === |
rotordrive.txt · Last modified: 2019/12/24 23:24 by wadmin