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Digital Turntable Tachometer and DDS based PSU

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#202
The Rega power supply is connected to the P7 using a 4 pin DIN connector, the power supply is connected to the power line via a wall wart-there are no other sockets on the P7-the P7 is an older Rega table living between the P9 and the P5.
 
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#210
Sunsun22-

Are the motors 3W each (will need the Eagle) or 3W total (OK with Falcon)?

You can use a step up transformer (travel convertor) with the Falcon to drive 220V motors, but they are not 100% efficient so you will have to add the amount of power they consume to the total power used. The larger the step up transformer, the more power it will use. The Eagle can output 230V directly without a step up xfmr.
 
#211
Falcon or Eagle

The measurement is at the present PSU output and the actual measurement is only 2.8W total for two motors. I am planning to use a 100W step up transformer therefore; I believe, 5W should be sufficient but my concern is: -

Does the Eagle have better performance than Falcon (for example; but not limited to, distortion, better sine wave, lesser frequency fluctuation etc.)? If they are they same, I prefer to use the extra money for the RoadRunner.



Pyramid said:
Sunsun22-

Are the motors 3W each (will need the Eagle) or 3W total (OK with Falcon)?

You can use a step up transformer (travel convertor) with the Falcon to drive 220V motors, but they are not 100% efficient so you will have to add the amount of power they consume to the total power used. The larger the step up transformer, the more power it will use. The Eagle can output 230V directly without a step up xfmr.
Click to expand...
 
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#212
The Eagle and Falcon use the same digital control and frequency generation circuits and the operation is the same (they run the same firmware). They use different output amps and have different max power ratings; THD is very similar in both.

A 100W step up transformer is overkill for this application (IMO) and due to losses in the xfmr, may consume more than 5W total. If you have a way to measure this, I would confirm power consumption before trying to drive it with a Falcon PSU.
 
#215
25W Eagle PSU now shipping

We have been beta testing the 25W version of the Eagle for ~ a year and we are now in full production and shipping only the 25W version. Functionally and operationally, they are the same as the 15W version and the price has stayed the same.

There are some internal differences in both the 25W controller and amplifier section so they are not interchangeable with the 15W versions. The wall adapter is also a different voltage between the two versions so they cannot be mixed as well.

There is no advantage to using the 25W version over the 15W version on lower power motors, they will both function the same and have the same benefits. The 25W version was created to be compatible with some of the legacy tables like Lenco, Garrard, Thorens, Empire and others.

The 15W version has been discontinued and replaced by the 25W version effective immediately.
 
#217
Serial number 620239 and higher are 25W units. Also the front panel legend shows 25W max instead of 15W, and the rear panel shows 24VDC instead of 48VDC. The wall adapters that ship with the 25W units are 24VDC at 60W where the wall adapters with the 15W Eagles are 48VDC at 60W.
 
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