UM5 Rx Crystal 35,190 CH79 (Mini - Single Conversion)

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As good as 'real' ones

Nov 14, 2007

These are very small micro crystals. They are only a few millimeters across, which is not obvious on the pictures. Mine came without plastic label, but the frequency and channel are laser-etched in the metal housing (need very good eyes to read it!).

I tested this crystal on a Multiplex receiver (Pico 5/6). The range is exactly the same as the full-size crystals from Multiplex, which cost 12 Euros($16.00!).

In order to fit these micro-crystals on standard receivers, you must solder additional legs made of copper wire having the right diameter and 13mm (1/2") long. One leg must be soldered to the outside of the original pin, the other one centered. In this manner you get the accurate width for standard sockets. Wrap the crystal with a piece of tape to handle it easily. Using pliers to remove a crystal is not a good idea -)