before I destroy my equipment...

[melofelo]

The best and most convienent way is to have one turntable on the phono input and have the second table connected to an external phono preamp and run that into an unused line level input.
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the above quoted method mentioned does offer alot of flexibility in tuning your individual analogue rigs..

for example
...a bright detailed sounding cartridge with a smoother sounding inbuilt phono stage..
and perhaps an incisive sounding external phono stage with a warm cartridge...

its a great way to prep two analogue front ends to suit a diverse music collection..

jazz and classical on deck 1...pop and rock on deck 2...:scratch2:

 

[highfigh]

If you want to make it easy to change, use a switch. If you want it to sound best, plug and unplug. There's not much signal coming from a cartridge and what is there is easily affected by connection quality, inductance and capacitance. Connecting two turntables to the input with Y cords will be the worst choice. Niles and others make A-B switches.

 

[Gregoire]

Thanks for all your help!

I guessed that Y-connections wouldn't be the way to go, but I'd rather ask a stupid question than do a stupid thing!

I'm thinking about the Rek-O-Cut switch...

 

[musichal]

I was wondering if the TT's were hooked up in parallel as the poster contemplated, would the output of the cartridge in play cause the other cartridge's stylus to wiggle?