[library]

Hello, Everybody

Today I just finished Octal cornet assembly. The cornet works 1/2. Left channel works OK but right channel does not sound even a noise. There is no hum at all on both channels.

I found the output + happened shorted by chassis, and I insulated that. But the right channel is not work at all.
Here are the measurements of plate voltages.

Pin#        2         5
V1 298       160
V2 315       313
V3 314       314

I think the shortage might kill a capacitor. Which capacitor I have to check for this shortage?  

I checked the voltages from tube pins. Right and left voltages are almost same. I guess tubes and adjacent passives work fine, but cannot track down the reason yet. Does the shortage harm any tubes?

Please, help.

- lib

ps. I used cement resistors for R18 since I cannot get better one with 5w. Is it critical to sonotiry?

[hagtech]

The plate voltage at V2 is wrong.  Should be about the same as V1.  My guess is that R5 is wrong value.

jh

[library]

Thanks, Jim. It was soldering problem. My bad fingers...