Plus Distortion - Classic 70s distortion with vintage metal can op amp

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The M#R Distortion Plu$ the Distortion pedal that set the tone for 70s and 80s rock ... love it or hate it, there's no denying its a stone cold classic.

Vintage military op amp based dirt pedal based on the distortion plus

Motorola metal can LM741 op amps

Hughes OA47 GE diodes

https://www.youtube.com/watch?v=pHdB-SyFBTY

However, there are some things that could be improved about this circuit and its current production version. The gain control gets very bassy as its turned down so I've sorted that. Maxed out the high treble can be ... well .... nasty, so I've sorted that too. If you want the bassy'ness then the toggle switch can bring it all back in the up position - down gives you classic D plus tones - in the centre is lower gain and lower bass which suits humbuckers perfectly, if 'runaway train' gain is not quite your jam.

Vintage Mil Spec Motorola metal can op amps and Hughes OC47 germanium diodes take care of the distortion beautifully, with plenty of edge, without the string noise, but all the pick attack.

Built in my tour grade style, the construction will take all the road miles you can throw at it and come back for more.

I build these fuzz pedals in my garden workshop in Northamptonshire UK. This includes painting, drilling, and acid etching my design onto the enclosures. Constructing the entire circuit ‘Point to Point’ only using the components, theres no boards or circuit traces to dilute your signal purity. I finish the entire pedal to a standard that I think looks as good inside, as it sounds on the outside. It might be covered up but when you’re in that moment you KNOW the mojo you have under the hood.

Please be aware, these are totally hand built and so there might me some slight cosmetic variation between each pedal. The acid etching process produces a gunmetal patina on the enclosure with will vary from pedal to pedal. This is most noticeable on the sides and imparts a unique character to each pedal. Tonally, I play each one to make sure they sound as good as the first one, before signing off, no tone generator, no gadgets – just a telecaster and my ears.

Alpha pots
Neutrick jacks
Vishey resistors
JB capacitors

Please note, all my pedals have a boss style 2.1 center negative DC jack only, there is no battery snap.

Thank you for reading, if you have any questions about this pedal feel free to message me.

RF interference - Many old pedal circuits are vunerable to Radio Frequency Interference from a host of different modern electronic devices ranging from lighting to heating controllers to fridges. This is by the nature of the design and to reduce the chances of this happening would radically alter how the pedal sounds. If you are having problems with RF using one of my pedals here are a few resources that can help. RF interference is not down to a faulty pedal.

http://www.analogman.com/faq.htm#rf

https://www.thegearpage.net/board/index.php?threads/radio-interference-on-a-few-specific-pedals-any-suggestions.1582906/