3. Supply waveform
This is an aspect that has been becoming universally and insidiously more of a problem over the
years largely as a result of the “switched mode” power supplies that have generally supplanted
transformers in much modern electronic equipment.
The supply waveform does not now have a clean sinusoidal shape, but shows drastically clipped
peaks – the equivalent of adding numerous high order harmonics to the fundamental 50 or 60 Hz.
These can be shown to exist at significant levels far up into the audio frequency range, and even
if attenuated by damping in the drive belt will still feed through to the platter. We need to
synthesize a new clean waveform; “filtering” is not an answer.
4. Voltage spikes, and other “hash”
These are another part of the fallout from the volume and complexity of modern consumer
demands, and are sufficiently worrying to have provoked restrictive regulations on equipment
manufacturers. Our AC motor supply needs to be free of all such intrusions.
THE WAVE MECHANIC
The “Wave Mechanic” power supply addresses all of these issues, and provides a clean
waveform, stable in voltage and frequency even when run off voltages well below the permissible
level. The output voltage is pre-set internally to be in the optimum range, and there is a single
control on the front panel to allow minor adjustment of the frequency for pitch control. Other than
for this purpose it will probably remain untouched.
Both 50Hz and 60Hz version are available configured to suit local frequency and voltage.
For a Turntable speed reference to partner the “Wave Mechanic” power supply, the “Zapper”
hand-held battery-operated strobe illuminator is ideal. This is available in 50Hz and 60Hz
version, either with the power supply or separately for more general use.
The audible benefits of the power supply are very clear. Detail, dynamics and sound stage are all
much improved, but perhaps the most evident feature is the way that the whole pace and rhythm
of the music sound natural and true. Pitch stability is impeccable, giving complete confidence
and much deeper involvement in the musical performance.
The benefits should not be expected to replace those from upgrading the turntable, but rather to
complement them. Al of the Nottingham Analogue turntables will benefit, whether your current
one or your next upgraded one!
Specifications:
Supply voltage/frequency:
Version for 230V/50Hz, 115V/60Hz, 100V/50Hz, 100V60Hz
Power consumption: 6.5W
Fuse:
Ceramic HRC 5mm x 20mm T250mA (230V), T500mA (115V and 100V)
Output frequency:
50Hz or 60Hz (depending on model) with control in center position.
Case Dimensions:
(H x W x D) 2.55” x 4.13” x 11.22”
Weight: (w/ packaging) 5.6 lbs.
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