The 7203 has been cleaned, checked and is fully operational except for the magnetic card unit.
The rubber rim on the card unit's feed roller had depolymerised and the unit will not operate until a replacement is sourced.
The unit was acquired in original packaging and appeared to be little used. It had its original manual and packing card but no magnetic cards.
On arrival it was in excellent physical condition, complete and undamaged.
Restoration 1 Cleaning, Physical & Safety
The unit was dismantled and cleaned with careful antistatic precautions as early MOS devices are notoriously sensitive to static damage.
The only defect discovered was the depolymerisation of the rubber drive wheel in the magnetic card unit.
The electrolytic capacitors in the power supply were replaced, for prudence.