Here are a couple of options for generating proper 48V phantom power from a 9V supply. Now, before we go any further, I should point out that the quiescent current for the first option is about 27mA and for the second about 52mA, so don’t be thinking you can run this from a PP3/1604/6LR61 battery [...]
I had an enquiry about reamping and – to cut a long story short – thought it would give it a bash. It’s all been done before, so I decided there was no mileage in reinventing the wheel and offer the following schematic:-
R1 thru R5 form a balanced T-attenuator with a gain [...]
Kits and Bits for your stompbox project.
I’m pleased to announce that the webshop is now open and can be accessed here.
Initially, we have PF5102 and 2N5457 JFETs for sale with matched pairs and quads available. Also, we have a kit for the True-Bypass Relay project – now with low-voltage monitoring [...]
Both my valve amps have a power switch and a standby switch. When I first got a valve amp, I didn’t know why it had two power switches and I kind of assumed that the standby function was just a convenience to keep the amp warmed up without having it fully on.
Recently, however I [...]
UPDATE 8th May 2012: I have now posted a library for the AXE133Y on the Arduino website
I bought the AXE133Y from the Picaxe store. It’s an inexpensive and easy to assemble kit which gives you a serial-controlled 16 x 2 dot-matrix OLED display. I wanted to connect it [...]
I accidentally blocked registrations for new accounts which meant that nobody could leave a comment. Doh!
Please feel free to register and leave comments. I’ll endevour to moderate them quickly.
I am looking into making and selling PCB’s for some of the projects on Stompville. Let me know if you’re interested – either by leaving [...]
Update: True Bypass kits now available for sale here.
I have used Arduino over the last twelve months or so for a couple of projects and I have been looking for an excuse to go to play with the AVR ATTiny embedded microcontroller range. I came across [...]
I’ve had some interest in and feedback for my Altoids Piezo DI box and I have revised the design sufficiently to warrant a new post. The new design has the following changes from the previous version:
I wanted an analogue chorus-pedal for my modular stomp-box and after acquiring a few MN3007′s from Hong Kong, I decided to build the Hollis Zombie Chorus as a starter-for-ten – which I did – and I was a bit disappointed with the result. It may be that the PCB design was sub-optimal [...]
I’ve been taking my Altoids piezo DI box to open mic nights and have had some interest and feedback. People seem to like the concept but are not impressed with the balanced output and phantom power – which is fair enough given that the mixer is invariably on the stage and [...]