Tuesday, August 21, 2018
Maxon CP101 Compressor
Stumbled across the schematic for this compressor and couldn't find a layout for it. So I drew it up. This follows the original red box version, not the black box reissue. It's an optical compressor and apparently fairly subtle. I couldn't find any info on the vactrol used in the original–sockets are your friend. Should be an easy fit in a 1590B.
Theres any difference with LM741 chip?
ReplyDeleteThis comment has been removed by the author.
DeleteIs this verified yet ?
ReplyDeleteIs that 500 ohm trim to regulate voltage?
ReplyDeleteNo, it allows you to adjust the high pass filter I think.
Deleteverified.. 👍
ReplyDeleteThanks!
DeleteDoes anyone used germanium transistors ? Thank you!
ReplyDeleteHow should the photoresistor resistance be ?
ReplyDeletewhat is LDR and what is the value ??
ReplyDeleteA LDR is a "Light Dependent Resistor", there is not a specific value, you can use the GL5528 LDR
DeleteHow to reduce sound hiss?
ReplyDeletePlease reply?
DON'T use a 741! They hiss really badly
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ReplyDeleteVerified..
ReplyDeleteBut, I want to know that 500ohm trim pot..., what is that for? Is it a attack/release knob?
Im not a compressor fan,but i made this for a friend,you can verify this,it works,with some tiny noise but bearable,and..i still dont know what a compressor really do 😅😅😅
ReplyDeleteIs it normal to have a little bit of clipping in this pedal? I tried replacing the LDR with various resistors and found that, the higher the resistor, the more clipping I got. Maybe I need a brighter LED, or a different LDR?
ReplyDeleteTry green led
ReplyDelete