Electrical Tuning Fork
On sturdy streamlined base with provision for vertical or horizontal use. Fork is manufactured from selected steel. Prong is 10x25x300mm. Accurate frequency adjustment; chrome plated, vibration rate 60 per second. Electromagnet can work on 6 Volts. The amplitude of vibration can be varied by sliding the electromagnet inside the prongs. Complete with stylet, mirror & counterpoise
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