Hey
!
I’m currently working on an extension for the awesome Analog Discovery 2 (AD2) measurement system.
It’s a small footprint (letter/DIN A4 size) development lab specialized for analog audio prototyping.
After 15 yrs in electronics engineering (aviation, audio) I decided to pursue my dream of teaching audio electronics for
beginners and experienced DIY folks. This extension is my first step into this direction. Originally, I designed it to streamline
my design-flow but after some iterations and a lot of discussions I decided to turn it into a real product.
It will be available on Kickstarter this winter with a target price of around 250-300USD.
It comes with a mean-well power adapter, bare-PCB mounted on an aluminum base and a front plate for the controls.
The breadboard section is detachable and the breadboards can be replaced with standard ones if worn out.
All electro-mechanicals are quality components (ALPS, NEUTRIK, CUI and switches with gold contacts).
So, I’m reaching out for your feedback/input/criticism/opinion: everything is really appreciated—so hit me! What you can do with it:-Rapid prototyping of analog or (basic)digital circuits
-It shines while developing
-Audio Circuits (All standard audio connectors available)
-Eurorack (3.5 TS connectivity)
-Generating CV parametric plots (Bode, THD+N, etc.)
-In conjunction with simulation (Measurement and simulation results on the same display)
-In a space limited environment (e.g. you don’t have the space for an own permanent lab)
-Characterize your existing audio gear
-THD+N
-Bode/Transferfunctions
-Input impedance
And all measurement functions are easily automated with the scripting functionality of the AD2.
Feature set:In addition to the standard “Analog Discovery 2” functionality:
-Bipolar PSU
-Adjustable from +/-5V to +/- 15V
-Current limit 10..200mA (continuous short circuit protected)
-AC modulation input for PSRR measurements
-Overcurrent LED indicators for each rail
-Outputs switchable
-IN- and OUTput gain staging for optimum THD+N measurements at different signal levels
-Overload indicators PRE and POST D.U.T.
-Input and Output protections
-AC/DC coupling for Oscilloscope probe inputs (switchable)
-Headphone driver for D.U.T. output monitoring
-Gain scaler and level control for auxiliary generator (allows for +/- 10Vp drive level)
-Mode selector for AD2 oscilloscope inputs: choose between Inputs to system or Inputs to BNC (for classic oscilloscope probing)
-Dual detachable breadboard with Dual PSU, GND and AD2 PSU outputs (0…+/-5V adjustable) routed to the supply rails of the breadboard
Connectivity:-XLR I/O with low noise sym/desym stages, line level
-6.3 Mono TS I/O
-RCA Mono I/O
-3.5 Mono TS I/O
-2x BNC Out (GEN1/GEN2)
-2x BNC In (CH1/CH2)
-2x Eurorack 16pin Power header (choose between powering breadboard or Eurorack Modules)
-Aux Generator to socket and 3.5 Mono TS
-4mm Banana GND Jack
Thanks and thanks again!
Greets from Vienna, Austria
Sebastian