Win Labs strain gauge cartridges


Hi,
would anyone out there know where I can get a circuit diagram for the power supply for these cartridges? I got two in vgc this week, basically free, and am curious to hear what they sound like.Im an electronics tech, so I can build most things, but with something as small and delicate as these, I'd rather have a circuit diagram, rather than risk vapourising them.

The few opinions I've read on the merits / drawbacks of these designs seem to be very polarised, but no one has ever said they own, or have owned one. Are there any current / past owners who can give an opinion. I'd be very interested in hearing what you have to say on them.

Thanks in advance,from a newbie to this forum, (1st post)
Brett
analograven

Showing 1 response by ivanj

I can't tell you about the power supply but I have owned two of them. Sonically they had incredible bass - like a Decca London - but tracked well. They need a very rigid arm. I measured the frequency response of one and it had response flat to the limits of the test record at both frequency extremes - another had a rising low end. I'd say they were a Technicolor(tm) experience, wonderful, transparent but not especially neutral. For the time incredible transient response - like a thunderclap but nevertheless had very little tracing noise. We called them the "Strange Gauge." I hear that Sao Win still supports them but I do not have an address. Good luck and keep us up to date on your experiments!