5E3 Build Smoke Comes out of Resistor

[apeontheweb]

I built a chinese Ebay 5E3. I plugged it in and it sounded great. I smelled smoke and shut it down. The smoke came from a 4.7K voltage dropping resistor in between the first and second filter capacitors. On some schematics, it's noted as a 5K resistor. To help orient you on the schematic, it is tied to a 22K resistor I was wondering if anyone could help me troubleshoot my problem.

[Banjan73]

My first thought is that the resistor has too low wattage. But since this is a kit... I don't know.
Have you measured current/voltage drop over the resistor (if it still measures 4.7k)?

[JPK]

This layout shows it as 2 watt. I checked a Weber and Robinette layout and they're all 2 watt. You can see them on my populated, un-soldered board on the bottom left. Did they supply a lower watt resistor? Got a BOM or pics of it?

[apeontheweb]

The little bag the resistor came in said "2 Watt 47K" and I measured it and it was 47K. I don't know maybe it wasn't a 2 Watt but how would I know? The resistor still reads 47K. What voltage drop might i expect to see over it?

[SEL49]

The little bag the resistor came in said "2 Watt 47K" and I measured it and it was 47K. I don't know maybe it wasn't a 2 Watt but how would I know? The resistor still reads 47K. What voltage drop might i expect to see over it?

Should be 4.7K, not 47K.

[stratomaster]

Something at that node is drawing enough current to kill that resistor.  I'd be inclined to think it's the filter cap for that node, but it could be anything there.

[JPK]

Should say 4k7. Not 47k. Should read close to 4.7k. If they actually supplied a 47k that's not gonna work. The other one needs to be around 22k. Both 2 watt as my layout shows.

[apeontheweb]

Yes it is a 4.7K not a 47K. I also verified with my multi meter. I apologize for my lousy communication when I accidentally said a 47K resistor.

[JPK]

Was it 2 watt? It should look like it. Much bigger. If not look at the tube socket wiring. Make sure it's all correct.

[apeontheweb]

Yeah the resistor is a bit bulkier than the others.

[AlNewman]

Sounds like a good time to build a light bulb limiter.