Test with a multimeter

Electric bell (6 V)

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Now: Coil and contact resistance

CircuVanta 6000 counts · auto range DCAUTO•)))HOLDFUSE− HOLD LIGHT OFFV⎓V~Ω•)))FmA⎓ mA400 mACOMVΩ Coil supply (a) 1 a Return terminal (b) 2 b
Pin 1: Coil supply (a) (a) Pin 2: Return terminal (b) (b)

Red probe Not connectedBlack probe Not connected

Hold the probe and drag it to the tip of a leg. Tapping works too: first pick the probe, then the leg.

Set the range to Ω (resistance).

Measure step by step

In an electric bell, the coil and the contact breaker are in series: between the pins you measure the coil resistance and the closed contact together (about 30 Ω in this guide). The hammer hitting the gong cannot be seen with a multimeter.

Use the bell in a low-voltage circuit; take the measurement with its supply cut off.

  1. 1Coil and contact resistance
  2. 2Continuity