Hi all,
I own since ages this Dunlop CBM95 Mini Crybaby, which I love it as it is super compact and space friendly.
Lately I opened it to apply few mods (beside the 3DPT switch with bypass status LED which I already did years ago).
I didn't really trace the circuit, but from the components and values I saw, I think the schematic is the same one as the Crybaby CB95 with the input buffer and MPSA18 transistor.
In general I wasn't able to have a reading of the capacitors (beside the 220nF and the elcos which are 4.7uF and 220uF).
So I take for granted the other cap values are the same as on the standard CB95 schematic.
The only difference I've spotted is that the emitter resistor on Q2 is 430ohm instead of 390ohm.
Inductor is a Red Fasel.
For the frequency center cap values are also unknown as I wasn't able to get proper reading on my tester, but I would suggest following:
- High 10nF
- Medium 22nF
- Low 47 or 68nF
These caps have 1M resistors in parallel (to avoid pops when switching).
As said, I did few mods to the pedal (common stuff everybody knows about wah-wahs):
Input buffer cap 100nF (I love to have more low-end available)
Input Wah cap 33nF
Vocal mod 68k
bass/gain mod 410ohm
Mid mod 2k2
Place of course is tight being all SMD but it's doable.
N.B.: I have a new mini wah incoming, so I'll took some good detailed pictures of that one to share here.
Dunlop CBM95 Mini Crybaby
- Gila_Crisis
- Resistor Ronker
Information
Last edited by Gila_Crisis on 21 Sep 2023, 15:13, edited 3 times in total.
Zwischen Ordnung und Chaos fangt die Musik an
- Gila_Crisis
- Resistor Ronker
Information
Here the detailed pictures of a factory Mini Crybaby.
Zwischen Ordnung und Chaos fangt die Musik an
- Gila_Crisis
- Resistor Ronker
Information
I also modified the second factory stock mini crybaby I used for the gut pictures.
On this one I didn't do the gain/bass resistor mod.
I think 430 ohm is a very well chosen value, and wouldn't go lower than 390/400 ohm.
Instead raising the values of the 2 input caps (before the buffer and the wha circuit itself) help a lot more to have a fuller sounding wah.
On this one I didn't do the gain/bass resistor mod.
I think 430 ohm is a very well chosen value, and wouldn't go lower than 390/400 ohm.
Instead raising the values of the 2 input caps (before the buffer and the wha circuit itself) help a lot more to have a fuller sounding wah.
Zwischen Ordnung und Chaos fangt die Musik an