Smokin' 5W resistor after successful resistance check

[ksimmons]

This is driving me a bit nuts, all the terminals look good for resistance, fuse wasn't blown, triple checked wiring and joints and they all look fine. Tubes don't glow and the "box resistor" gets hot to the touch. Glow test was successful so I'm not sure why it's smokin' now.

[Paul Birkeland]

What is the DC voltage at pins 1 and 12 on each 12 pin socket?

[ksimmons]

About 330v on socket A and -30mV on B. If they glowed on the glow test, shouldn't they be glowing now as well? Been staring at it for a few hours here...

[Paul Birkeland]

You should post photos of your build.  There's no way you should have 300V on those pins, something is very wrong here or you measured different terminals.

[ksimmons]

there's a couple mistakes I made that I think have been corrected. The 15-22 strip is mounted backwards, and the OTs are swapped with the striped output wires wired in reverse on the headphone jack to correct the swap. Terminals 3 & 17 measure 880K instead of 880, and 11 & 25 measure 680K instead of 680 (seems like they read correctly). All other resistance checks passed. The IEC/relay twist looks ugly but passed PT-10 voltage checks and glow test, have enough wire to redo it.

Hoping a second set of eyes catches something I missed, I went over the manual 4 times and confirmed every wire is in the correct location. Thanks!

[ksimmons]

more pics

[Paul Birkeland]

What are the DC voltages on the H terminals?

[ksimmons]

With negative connected to H1:

H2=20.5V
H3=8.2V
H4=-4.3V
H5=20.3V
H6=0.8V
H7=-4.5V
H8=0V

[Paul Birkeland]

If you use your meter to measure a 9V battery, what does it display?

What is your incoming AC line voltage?

I notice that some of the wire leaving the IEC power entry module looks like it has jacketing that has melted off, do you know what happened there?

Whatever you do, don't try to listen to this amp until all the issues are settled.

I would also trim the leads of the MBRF diodes that are sticking out from the H terminal strip.

[Paul Birkeland]

Your positioning of this resistor also looks off, maybe it's not connected to the correct terminal?  Notice in the manual how it's perfectly parallel to the 680 ohm 3W resistor next to it and it's nowhere near touching pin 1 on the tube socket.  This resistor in your build looks like it's running over tube socket pin 1, so that's worth investigating.