[The bevelling of microelectrodes by vibration without using a special generator].

An original set-up replacing generator of sound frequencies is suggested. This set-up connected with AC current of 50 Hz frequency can be used as a power source to the electromagnetic vibrator with the frequency of the mechanical resonance of 200 Hz.

[A method of rapid beveling of microelectrodes using vibration].

The new technique is suggested for a rapid bevelling of glass and metallic microelectrodes by means of ends' friction on the fine-grained surface of a quartz plate vibrating at a frequency of the mechanical resonance of the system.