Simple Circuit Tester

As you know, you should ALWAYS fire up your new circuit and test it before you wire up your switch and box it up. Amazingly many people don't. Now there's no excuse...

This simple circuit emulates your final jack, power and footswitch wiring, so you can easily test your nice new build without much work.

Simply connect your four offboard wires for IN, OUT, +V and GND to this tester and you're ready to plug in and play.

The tester has the option to connect individual wires or plug in a Direct Connect ribbon cable (4 or 6 way), so should cover you for all standard negative-ground builds. For posi-ground effects you'll have to use the wired connections, but no biggy.

As everything is totally board-mounted on the tester there's very little to go wrong when building it.

Invaluable on any builder's bench.

Kit includes: PCB, all components, 3PDT footswitch, high quality jack sockets, DC socket, battery snap, LED.

Difficulty: Medium

PCB size: 50 x 50mm

Direct-Connect compatible (4- and 6-way)

Download the INSTRUCTION PDF

Product Code: TestSimp

Brand: Pedal Parts

Product Condition: New

£16.80 inc. tax

£14.00 ex. tax

? Tax based on United Kingdom.

Updating Order Details

Please do not refresh or navigate away from the page!

Customer Reviews

8 review(s) posted (write review)

Excellent and so useful
"Wow, what a fantastically useful device. Great to have something to test circuits like this and it's now difficult to imagine building without it. Very handy to have options for connecting individual wires or the Direct Connect (excellent system) ribbon cable. Well-designed and so very easy to put together. Essential kit for any builds and highly recommended." Derek - 04 February 2022

Must have
"I screwed up an axis fuzz and didn t not check as should. FuzzDog kindly sent some replacement parts when I bought this kit. I used it this time around to check the Axis and guess what it worked first time. This is a must have for any new or old builder of kits. Buy buy buy" Dominic Edwards - 07 September 2020

You won't regret buying one of these
"Fantastic product, especially for a new builder like me. Makes testing new builds a breeze, both pcb and verboard circuits work with it. Dead easy to build. Thanks fuzzdog" Alvyn - 04 November 2019

The Most Useful Thing You Can Build
"You can make a simple fuzz or a boost as your first kit, but you should really build one of these as your second kit. So easy to use. Makes testing a Fuzz Dog board easy as pie. It also works well with non-Fuzz-Dog builds. I think every 9-volt circuit I build will be put through this thing now. Super-handy tool for anyone who builds pedals." Patrick T - 30 October 2019

Great tool!
"Just got this one. I put it together (very easy even for a novice like me) and tester a build I am working on. Really great tool. Now I know my circuit works. Very good to know before connecting everything." Henrik - 30 June 2018

5 minute build. Hours saved!
"Such a handy device. Just get one and test your builds properly. Testing is not glamorous but you'll be glad you did it..." Rick Leyland - 12 April 2018

Get one of these!
"This is so damn handy! It's well easy to put together, and also works on stripboard builds, it's much easier to use this than piddle about. Thanks Lee, just wondering if I can add anything to it as a mate designed a little tester for me too..." Mick Jones. - 04 May 2017

Very helpful
"This is an extremely useful tool for a beginner like myself. I've tested a couple of builds with it and have been able to quickly access that my populated circuit boards had no errors. I don't think I have need for the more advanced circuit tester but if I didn't already own an audio probe, I might have gone with that one instead." Clifford - 27 March 2016