Thanks Stoobie.
Yes, if all else fails this may be a good idea!
Currently trying the RF performance of the SBC RU 990 vs. its counterpart the TSU7500.
It seems to be somewhat better...
Tomorrow I'll try further- hopefully the "to-close-for-comfort" issue won't play up as badly as it did for the Intertechno sockets...
Well, maybe the Elro's (found the conversion/DIP switch info, should anybody be interested) will do the trick!
I don't give up easily...gotta have these amps turn on and off with the rest!