Last one I'm going to trace this weekend. Pretty big "bang for the buck" for those who are not afraid of plastic cases and highly "tweakable" for a chorus that can be bought for 20 dollars or less. Interesting way of driving the MN3102 as pin 5 is not used. Also a surpising way of mixing the dry and wet signal on the "second" output.
Apart from the fact that it uses a MN3209. Although that could be an error as I got this thing with that chip in place and soldered in 180 degrees wrong. Always interested in somebody opening up his example to see what's in there. Enjoy.
http://www.dirk-hendrik.com/aria_stereo_chorus.pdf
Aria - ACH-1 Chorus / Monarch ACH-7 [schematic]
- Dirk_Hendrik
- Old Solderhand
Information
- analogguru
- Old Solderhand
Information
Thats a problem.....Always interested in somebody opening up his example to see what's in there.
Mine is already open and was waiting for tracing.... what is obsolete now.
Thanks for the schem...
Than let´s have a look.... the units seems to be from 1989 after week 38....
it has a MN3209 and a MN3102 in it....
As far as I remember the zener-diode marked with xx normally is a 9V1 in these units.... yes in this unit also marked with 9.1 in blue.....
Mine doesn´t have a "Sensitivity" control.... Instead it has an "Intensitiy" control.
In the Ken-Multi pedals the same pcb was used too....
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.