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Croak Audio Exploration
PO Box 3899, Cramerview 2060
South Africa
Tel: 083 565 1236
Fax: 086 572 2797
E Mail: info@croak.co.za

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Hercules Power Supply For The Linn LP12 Turntable
 
 
Hercules PSU for LP12 + Switch



The Hercules Upgrade Power Supply with Electronic 33/45 RPM Selection sits over the mountings already present on the chassis if you have a Valhalla (if you have an older, basic power supply, we can supply easy to fit adhesive studs to fit the Hercules board on to the cross brace).
The Hercules II replaces the Valhalla board completely and can be fitted in a very short time, merely requiring the mains lead and motor wires to be disconnected and refitted to the new board once in place.
Very simple to install. Full instructions are provided.
The new on/off switch that replaces the LP12s original has two LEDs fitted rather than the one to show the selected speed as the Hercules II offers 33 and 45 rpm. Even handier is the fact that both speeds are selected through this single button - from standby mode you simply press to switch on at 33 and light the red light, or press for 5 seconds to switch to 45 rpm and light the blue LED.
Manufactured to a very high standard, the heart of the Hercules II is a pair of low noise, high precision crystal oscillator circuits that have their frequencies divided to generate a clean AC sine wave which drives the motor at either 50HZ (for 33rpm) or 67.5 Hz (for 45rpm). Build quality is superb, using superb components resulting in an extremely reliable upgarde for your Linn LP12.
The Hercules II will work with 230/240v or 110v just by switching the fuse on the board to the correct housing.

NO NEED TO CHANGE THE MOTOR.



Hercules II Fitted

to LP12



The Hercules II will also work with other Airpack/Premotec motored Turntables like the Rega and Thorens.


 
HiFi World (October 2007) stated that the Hercules gave the LP12: "improved soundstaging, increased 'confidence' to performance, better pace and switched 45rpm... also improved the bass end", concluding that "Even if you are happy with your old Valhalla'd LP12 and hadn't even thought of upgrading it, you might be surprised at the improvements.".

 

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