bush: BUSH DAC 10 dial lamp shunt

Hello all, I am looking for help with my DAC10 serial number 62/51117

Service sheet 1002 is listing the dial lamp shunt  250 Ohm, 7 Watt.

My shunt  is marked 75 ohm, power ??, wire wounded and coated and looking original.

Measures 74 Ohm.  One bulb is burned out, one is ok. I assume having an older version and should

change it to 250 Ohm?

Regards   Reiner

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Hi Reiner,

I think the 75 Ohm is right, at least if the two dial lamps are 3,5 Volt each. If you consider a current of approx. 100mA the voltage drop is 7,5 V what is right for the two bulbs.

Regards Rolf

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Hi Rolf,

sounds logical. I am waiting for my lamps now and test again.

Thanks for help

Regards   Reiner

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