ortloff@ugun21.UUCP (12/02/88)
I had an opportunity to buy a second hand Anderson Jacobson AJ211 acoustic
coupler.
Unlike the AJ311, the AJ211 provides the originate mode only.
However, the housing and the printed circuit give the impression that an
hardware-upgrade would be not too expensive.
Does anyone know how the A211 would have to be modified or has anyone the
circuit layout of A211 and/or A311?
Thanks in advance,
Alexander Ortloff
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