Phono preamp with mono switch?

The GCPH has fairly fast rectifiers, and shows a dramatic
improvement(much more realistic) in presentation, via the use
of upgraded fuses(ie: Hi-Fi Tuning Supreme) and power cords.
If you can solder; it's easy to install HEXFREDS and upgrade
the regulators, ie: with
Bellesons(http://belleson.com/download/Superpower_datasheet.pdf), and RCA jacks, as well. The transformer can be
removed and separated from the main chassis, making it even
quieter. The unit has many conveniences, via it's remote that
most other phono stages don't, like the MUTE, MONO, PHASE, and
VOLUME functions, that make it attractive, and capable driving
a power amp directly.

Just FYI: There's one on eBay (http://www.ebay.com/itm/PS-Audio-GCPH-Phono-Preamplifier-MM-MC-/261509261475?pt=US_Home_Audio_Amplifiers_Preamps&hash=item3ce32aa8a3) and one on Audiogon (http://app.audiogon.com/listings/phono-ps-audio-gcph-phono-preamplifier-2014-06-09-preamplifiers-t2k0e7) , selling for about the same price.

Rodman, IMO, Schottky diodes sound WAY better than Hexfreds. You just have to be careful about the fact that Schottkys in general have a lower forward voltage drop than do Hexfreds, so the voltage out of the rectifier will be a few volts higher with Schottkys. In low voltage solid state designs like the GCPH, that may make a difference, or not. But what was your point? This thread is about mono switches on phono stages.

@L- IF the OP was interested in the GCPH; he may be interested in knowing there are easy ways to upgrade it. Those other posters, that are using them, as well. What do you care, what my point might be? Are you a self-appointed Thread Nazi?

Thanks for the suggestions -- I appreciate them.
-- Howard