Pork Barrel: MN3007 & MN3102

[Scruffie]

Glad it worked makes me wonder how the Aquapuss DX works with that set up though...

A dark sound and signal loss suggests an incorrect cap or resistor value in the audio path so check R1-27 and C1-17 (excluding C12).

[Scruffie]

Spotted it in your photo, for C4 you have 100nF instead of 100pF that'd do it.

[memor82]

Ok! But so this is an adaptation? There are differences between  mn3102 and mn3101?
Can I keep the pedal with this ic or it would be better purchase the 3101?
I'll check all cap cause the resistors are right, already verified

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

[memor82]

Spotted it in your photo, for C4 you have 100nF instead of 100pF that'd do it.

Oooook!
Thanks! late I'll change the cap!
Many thanks man!


Inviato dal mio Galaxy Nexus utilizzando Tapatalk

[Scruffie]

Ok! But so this is an adaptation? There are differences between  mn3102 and mn3101?
Can I keep the pedal with this ic or it would be better purchase the 3101?
I'll check all cap cause the resistors are right, already verified

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

It is an adaption yes but it's not that big of one, it shouldn't change things too much, a lot of choruses tie pins 4 & 5 on the 3007 together for ease, ideally Pin 4 should be 14/15th the supply voltage for slightly improved operation where as here it's not.

Sooo, if you're happy with it when it's done, don't worry about it, if you want to try a 3101 as standard you can but I doubt you'll notice much difference.

[memor82]

Ok! But so this is an adaptation? There are differences between  mn3102 and mn3101?
Can I keep the pedal with this ic or it would be better purchase the 3101?
I'll check all cap cause the resistors are right, already verified

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

It is an adaption yes but it's not that big of one, it shouldn't change things too much, a lot of choruses tie pins 4 & 5 on the 3007 together for ease, ideally Pin 4 should be 14/15th the supply voltage for slightly improved operation where as here it's not.

Sooo, if you're happy with it when it's done, don't worry about it, if you want to try a 3101 as standard you can but I doubt you'll notice much difference.

AAAAlllright man!
received loud and clear
You have been very helpful..and gentle.
This is my secont  project
(previously retrograde..but allready have the chunk and yellow shark pcbs!)
I'll surely check in the future again here..maybe for a compressor..(any suggestions  )
byeee

[memor82]

Hi!
I replaced C4 and now It's seems all ok! 
Thank you so much..
I'll post a shot when I'll finish the enclosure

bye bye