Looks like my attempt at humour fell at the first hurdle.

I take it you did not notice Mike’s spelling error in the post 217 before my post 218.

The first one to work this out gets an SR3-21 SL1200 power supply as a prize.

This puzzle is open to any none-trade member of the AoS Forum on the planet except Marco, as he does not need an SR3-21.

I sent Marco a series 2 SR3-21 to try a while back and he either has, or is, sending it to Neil (DSDL) for part of a power supply assessment for the SL1200. Once Neil has finished with this SR3-21 I will pay for it to be shipped to the prize winner.