The Valhalla board sets the motor speed, not the mains input voltage or
frequency, as basically it generates its own crystal oscillator frequency
stable voltage to run the motor. Motors rarely run slow, so it should be
either a slipping belt or a faulty Valhalla board in theory as it could
still run slow if the Valhalla output stage was faulty giving a low output
voltage. Does anything look cooked on the board? My bet is the belt.


"Bruce C. Miller" wrote in message
oups.com...
Hi all. I hooked up my Linn Sondek LP12 for the first time tonight and
within a few seconds, to my horror, I noticed that it was spinning
records too slow. I'm in the US, but the LP12 I own (which I purchased
used) is marked as a 110V one, and the sticker on the back says that it
should be able to handle 50-60Hz.

It has the Valhalla power supply and the Cirkus motor upgrade.
Visually, everything appears to be in perfect condition, and I couldn't
tell that it was spinning too slowly until I put an LP on. It's like
it's playing a 33 at 28rpm (by my estimate).

Needless to say, I'm hoping that there's something simple I've
overlooked. I do realize that the LP12 is finicky... . Hopefully
someone here has encountered this problem before.