As usual, this paragraph presents the how-to for a SMD version. Speaking of SMD's, here is a view of the PCB, as it is produced by an LPKF drilling machine. The useful part is 1.5 x 1.8 cm...

The components you will need, whatever it is in SMD or not, are the following:

• resistors: 22K, 47k, 330k, 220k, 470k or 4M7, 3K3, 2K7, 100k. All in 0805 SMD cases.
• capacitors: 4µ7/25V x2, tantalum, suitable for the footprint of my PCB (sorry, no package ref!)
• 1N4148 x2 (or equivalent diods), suitable to fit on a 0805 footprint
• LM358 integrated circuit, in SO8 SMD case
• a D-SUB 9 pin female plug, with solder (wire) terminals
• a connector shell (check that the PCB fits inside!)
• some wire to connect to the Aladin. Check Matthias' page for neat Aladin connector ideas!

You can find them in nearly any electronic components shop, but most probably you will have to order all SMD items. I order by Farnell, you will find a complete set of order numbers here.