UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Elizabethan LZ-29

Sideband · 1st May 2019, 7:12 pm

These resistors are designed to run hot and if it's been handled, there will be grease from fingers and hands present. It will smoke and burn off as will any dust that is present. It may be OK....keep an eye on it for 20 minutes or so and the smoke should decrease as the grease burns off.

These resistors do run hot....in many cases far too hot to touch. That looks like it might be 15 or 20 watts. That is why they are big, wirewound and ceramic coated in clay. However if it starts to get red hot or the smoking doesn't stop .....there is a problem!

The resistor isn't smoking because it's faulty so no point in replacing it.

1st May 2019, 7:12 pm	#40
Sideband Dekatron Join Date: Oct 2003 Location: Croydon, Surrey, UK. Posts: 7,567	Re: Elizabethan LZ-29. Rectifier. These resistors are designed to run hot and if it's been handled, there will be grease from fingers and hands present. It will smoke and burn off as will any dust that is present. It may be OK....keep an eye on it for 20 minutes or so and the smoke should decrease as the grease burns off. These resistors do run hot....in many cases far too hot to touch. That looks like it might be 15 or 20 watts. That is why they are big, wirewound and ceramic coated in clay. However if it starts to get red hot or the smoking doesn't stop .....there is a problem! The resistor isn't smoking because it's faulty so no point in replacing it. __________________ There are lots of brilliant keyboard players and then there is Rick Wakeman..... Last edited by Sideband; 1st May 2019 at 7:23 pm.