Analog-Digital Trainer Single Board - Includes Operation Manual and Power Adapter

Not a bad product for the price. Has all the basics you might need for circuit design with a few issues: 1) it lacks an on-off switch which would have REALLY been nice (plugging and unplugging that DIN power connecter is a pain), 2) upon arrival the shaft on the "amplitude" pot was broken so the pot had to be replaced, 3) the circuit board thickness could be higher to support aggressive work on the breadboards (for example. the Professional Development Board for the Parallax Basic Stamp is 0.1 inches thick and is nice and solid), finally, the fact that when not being used the logic indicator lights flicker and flash is a really strange circuit design. I understand the designers wanted to be cute and have bi-color LEDs to indicate two logic levels, but they should have tied the inputs to GND with 10k resistors or something. Normally logic indicator LED in prototyping stations don't flicker and fluctuate if you're not using them. Thank goodness there's an on-off switch for them.What I do like is the +9VDC power supply rather than a more typical +12VDC (my designs typically use 9V rather than 12V). I also like that the breadboards are laid out horizontally rather than the more typical vertical layout.

I love this board. I would've like an enclosed (in a case) but don't really need it. Very nice!