the home of the turntable

DIY Strobe

Traditionally, speed testing of turntables has been done by viewing a series of bands on the turntable platter under mains lighting. The frequency of the mains supply (50Hz in Europe / 60Hz in the US) causes the bands to appear stationary at the desired speed and adjustment can be made using the turntables speed controller (if fitted).

diy turntable strobe

Unfortunately mains frequency drifts over time making conventional speed measurement inaccurate. To overcome this problem, companies such as KAB and Clearaudio have produced quartz locked illuminators which work independently of the mains supply to give highly accurate speed readings.

While useful, these strobes are rather costly for the average user who only checks speed accuracy on occasion. The DIY Turntable Strobe is a cost effective alternative to commercial designs and can be built for just a few dollars.

diy turntable strobe

DIY Turntable Strobe © D Tilch -Jhb, South Africa. Feb 2006

Strobe Project PCB Artwork (Hewlett-Packard PCL-3 format)

Discuss the DIY strobe in the Forum


Comments

Strobe PCB

Has anybody in the UK a PCB for sale for this Project. This is a great project, but I dont have the equipment to construct a PCB. And nearly £40 seems to be rather over the top for a commercial unit.

Thank you very much for this!

Thank you very much for this!