After speedball some problems

[Paul Birkeland]

Nah, that's just tube microphonics.  They aren't particularly predicatable, and not indicative of any associated issue.

[spitzer]

i was bussy a bit so i couldnt mess with it. my imbalance problem is going on. i changed front tube today but no change. t5 is 81 volt instead of 75v. it can be a problem? this problem is very annoying:( help please.

[Paul Birkeland]

81V is plenty close to 75V, that indicates proper operation.

[Grainger49]

Paul, just for clarification, with the Speedball are the same +/- 15% ranges applicable?

[spitzer]

as imbalance is same with all volume levels volume pot won't cause it. So what can cause this?

[Paul Birkeland]

There is some variation in this voltage, as is mentioned in the manual.  This voltage will rarely be exactly 75V. This is normal.

[spitzer]

yesssss, finally i found the problem:) i have used a 239 ohm resistor which is normally on small boards on big pcb board. replaced them and everything is okey.

[Grainger49]

Even as long as I have been building, I measure resistances before I place/solder them. 

It is just a good idea.  Sometimes Blue looks like the Violet in the color codes.