owel
Well-known member
I just ordered some WSM600:600 from Edcor and ran my usual tests. .
First impressions: The transformer is small, considering it's only 0.5Watt . It fits on a 1u rack chassis though, so that's nice.
I connected the primary to a signal gen, and the secondary to an oscilloscope. No load resistor.
1. With the signal gen at 10Hz, the trafo shows some distortion in the negative half of the waveform. Raising the signal gen to 15Hz made the distortion disappear. 20Hz is fine.
2. Running sine waves, I noticed that the output waveform started increasing (getting bigger) compared to the input waveform around 10Khz. It continued to do this until 20Khz, then the output waveform started getting smaller again as the frequencies got higher, then started increasing again (forgot to note... maybe around 50Khz). Also at higher frequencies above 20Khz, the phase shift was so severe that on the oscilloscope, it looks like the phase got inverted.
This behavior is unusual from all the other brands of trafo I tried. What do you guys think of it?
I haven't done listening tests yet.... just want to post my first impressions.
First impressions: The transformer is small, considering it's only 0.5Watt . It fits on a 1u rack chassis though, so that's nice.
I connected the primary to a signal gen, and the secondary to an oscilloscope. No load resistor.
1. With the signal gen at 10Hz, the trafo shows some distortion in the negative half of the waveform. Raising the signal gen to 15Hz made the distortion disappear. 20Hz is fine.
2. Running sine waves, I noticed that the output waveform started increasing (getting bigger) compared to the input waveform around 10Khz. It continued to do this until 20Khz, then the output waveform started getting smaller again as the frequencies got higher, then started increasing again (forgot to note... maybe around 50Khz). Also at higher frequencies above 20Khz, the phase shift was so severe that on the oscilloscope, it looks like the phase got inverted.
This behavior is unusual from all the other brands of trafo I tried. What do you guys think of it?
I haven't done listening tests yet.... just want to post my first impressions.