3 Tonearms 1 preamp

I had a similar dilema, three tables and one phono section, a Fon Lo Thingee by Blue Circle. I liked it so much I had a custom Phono section made by Blue Circle that incorporated three Fon Lo Thingee Phono sections put into a "Proper Box" with a Grayhill three position selector switch going to one output. Each phono section has its own input with selectable gain and loading. The design utlized the existing Biggee power supply and SP capacitor pack to save a few dollars. I think it is really great and perfect solution for me.

that is why I use McIntosh C20.....

Thanks everyone.
With my budget I think that the idea of adding a selector switch and phono jacks at the preamp is the way to go. I will get the switch and jacks from an old receiver. No real estate on the pre so I'll make a box that rests on top and will enter thru the rca holes once the jacks are removed and hard wire direct. If I ever want to trade to another pre it will be simple to restore to original. Anything I have overlooked or need to consider is welcomed and encouraged.

I remember talking to one of Stuart Hegeman's technicians back in the early eighties about modifying my Hapi 2. He emphatically advised me that it was a bad idea. It seems that the topography of a preamp is very important and is taken into consideration during it's design. Adding extra RCA jacks and a selector switch might have the effect of creating an antenna to catch stray RF noise from the circuit and ruining the entire preamp. Needless to say, I took his advice. If I were to have 3 tonearms and cartridges, I would get 3 separate preamps. Keep it simple (circuit wise).

Thanks for the advice Heyraz. That will lead to the same problem at the final preamp. Maybe Veridian can comment on the results of his conversion with the addition of the selector switch. I am learning that most every change is a compromise in some regard.The simplest compromise is the financial one but it is also the most difficult to justify in these times.