need more inputs & outputs to run tape machines

I have similar issue as the OP.  I am considering the use of Y cables to split the signal, but I am concerned about the effect that may have on the quality of the signal.  The switch box one post links to is probably no better than the old Rat Shack boxes (I use one currently).  I am also thinking of using an old receiver with multiple tape loops as a (very large) input switcher.  Again, though, the concern is signal degradation.

FWIW, Morrow offers Y cables at many price points that might work.  I may go that route myself.  

Your amp has three full tape loops.  Why not use long interconnects and have 3 tape decks hooked up at a time?  When you want to switch to a different deck simply switch the cables at the tape deck end.

Alternatively, you could use a Niles or Sony tape deck switcher.  Each allows you to hook up 3 tape decks to a single tape loop.  If you got three of them you could have 9 tape decks simultaneously connected.

Good luck!

onhwy61, Yes that is what I am doing now with the Radio Shack switchers,i like them better than the sony & are easier to use.This works just fine but was just hoping to find something in one box that could handle more than 9 recorders.