You can see in the bottom left the power section and where the various voltages v+raw, v+, v++, v- and v- come from so whatever voltage you get at those flags should be the sameĮverywhere else they appear on the schematicĮ.g. It could be something else causing the fault rather than the op amp but could also be the op ampįirst thing I'd do is check the voltages on the power pin 8, ground pin 4 and input and output pins 1,2,3 and 5,6,7 Known the world over for creating the Eric Johnson violin tone. Heres your chance to own this legendary 'Holy Grail' of overdrive pedals. Make sure this fits by entering your model number. We dont know when or if this item will be back in stock.
The op amp shouldn't be getting hot in this schematic it's a TL072 one half used as a buffer the other an inverting amplifier TUBE DRIVER Original by BK BUTLER Brand: Butler Audio. There's also pcb images to see if it's the same or similar to yours If you can read a schematic there's a trace here by bajaman with his schematic "Understanding How Transistors Work" - Stompbox Studies "Everything You Need to Build a DIY Guitar Pedal" - Pedal Haven "So you’re starting out - A guide to what you’ll need to build pedals." This is an open community for the do-it-yourself pedal builders of reddit! Please use this subreddit to share knowledge, give/receive help, and show off your custom builds! Looking for troubleshooting help? Please read this first!
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