I don't think it was spam. The same circuit can be done with valves or SS. Like I said, I built the circuit which lead to this with valves. I have designed some stuff which was quite well recieved in these parts with a mix of SS and valves( Guinevere and Merlin ).Is there anything else you'd care to take issue with? There is plenty of SS in both of those designs, BTW.
regards,
Douglas