Steve, you'll need to use a very high quality switch to prevent leakage. You'll
get a bit of signal loss from it but probably not enough to matter. Just
remember to never change that switch when anything is turned on, especially if
you're running any equipment with chips in it.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html