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Beolover SyncDrive: DC Platter Motor Replacement for Beogram 4002 and 4004 (Type 551x and 552x)

Late Beogram 4002 and the 4004 (Types 551x and 552x), which have DC platter motors instead of the earlier synchronous AC motors usually suff...

Saturday, January 16, 2016

BeoloverRPM: Now with Display!

This is an update to my earlier post about my BeoloverRPM device. It allows the measurement of RPM performance of Beogram 400x models over time. It is also very useful for precise RPM calibration. I now tested the original version on a few Beograms and I felt a display would make it much more pleasant to use for simple RPM adjustments in addition to the RPM vs. time serial port printout. Tonight, I finally figured out how to program a small display that I integrated into a modified enclosure of the unit. Here is an impression of the current setup:





















Right now it just shows the actual RPM...I will fancify this readout a bit more and then this should be ready for primetime.

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