Tuesday, April 7, 2020
Marshall Guv'nor
Here's another layout that needed a refresh/correction. Old layout was pretty trash and had a few errors which have all be resolved. Similar to the Blues Breaker (at least in circuit topography), but with a 3-band EQ and hard clipping. Bit more gain and distortion on tap. Here's the schematic for reference. Should fit nicely in a 1590B.
Thanks man! This pedal is awsome! If you want to hear it in it's finest just list to Gary Moore's Still Got The Blues album. It was entirely recorded with one of these!
ReplyDeleteJust wanted to say thanks as well. I've built the Guv a few times over the years, but this is nice and compact.
ReplyDeleteGlad things got sorted out correctly; I went over the layout several times yesterday and today, comparing it with the factory schematic of the Marshall Guv'nor from the late 80's. This looks good to go and will be putting it my build queue.
This turned out great! I have a late 80’s version and can confirm.
ReplyDeleteCall it verified
Stay safe and healthy!
Thanks for verifying!
Deleteverified! Made + mode with mosfet clipping! Thanks, David!
ReplyDeleteWhat did you use for the MOSFETs?
Deletesorry for my language, but I'm from Brazil. what happens if i exchange TL072 for tl833
ReplyDeleteThe 833 is a hi-fi chip, so it may sound a little clearer and defined. Everything I've built with an 833 chip has sounded great, so I think you'll like the results.
DeleteSaya putus asa buat efek kok gagal terus.gak bakat
ReplyDeletebuat yg simpel dlu bro, MXR distortion plus contohnya
DeleteI'm indonesia.can you tell me that layout
ReplyDeleteis work?
Thanks
hi
ReplyDeletei made this layout today and it's awesome!!!
but when i turn the gain knob it gets really noisy
what seems to be the problem?
i built this on a bread board today , this sounds absolutely awesome.
ReplyDeleteHI! Can i use it like preamp for a portable amp?
ReplyDeleteThe correct treble pot is 10KB in the original 80's pedal
ReplyDeletei have problem with this build, at first arround 10 minutes it went normal and great sound
ReplyDeletebut suddenly the distortion became so noisy and sound gone, i had no led light when string strummed
i changed the component for 1k5 become 1k2, 2m2 become 2m and 100pf for 50pf paralled
is there any solution?
solved, 10nf cap near input jack shorted and has dc leaked
Deleteremoved and install new 10nf cap
thing works fine
great sound anyway
I still have this issue, can someone give me solution??
DeleteBetween the 5817 and 680k at the two ends going over the blue lines to the red is a wire which I assume is soldered is this correct.
ReplyDeleteYes, that's a jumper. Just use a bit of hookup wire or a cut off lead from a resistor or capacitor.
DeleteHello, I have built this and it works quite well. I want to ask if it should be placed after a cab simulator or before it like an amp sim? Or is this like any other conventional distortion pedal that should be placed before a cab sim? Thank you for this layout btw. This is a blessing.
ReplyDelete