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Hi everyone,

Just built the 2019 version of the road rage with an LT1054 and 78L15 15v regulator for my prototyping board and I think my voltages might be a bit off.

With no load I'm getting:
+9.0v (unregulated +9v output)
+8.8v (regulated +9v output)
+13v (between D3 and D4)
+16.2v (+15v output)
+16.9v (+18v output)
-8.8v (-9v output)

My first thought is to swap the regulator out but any other ideas if/where I should start troubleshooting? I remove the regulator presumably I should get +/-18v if everything else is working? Though I would ask before I start ripping apart the circuit.

Thanks for you help.

Update: I went ahead and removed the regulator and now I get +17.5V (+18v output). Seems a bit more like it. Never heard of problems with regulators, but I'm going to breadbaord a few to check.

Hi Everyone,

Just getting back into pedal building after a long break!

I decided to build a prototyping rig as described in the madbean tutorial and have used the Road Rage circuit to give me the different voltages +9, +15 , +18, -9v DC etc.

My question, and possibly a daft one, is whether it is safe to power this breadboard/rig with my isolated power supply or if I should stick with using a 9v battery?

I know the road rage charge pump circuit has polarity protection but I'm not sure if this helps if I short something by accident while breadboarding. Dont want to mess up my power supply.

Thanks for your help!