Adjusting bias on BDRI (missing TP?)

[merlot]

Okay, I sort of hijacked the other thread, so I'll start a new one..
Here's original post...

Newby, here, and new owner of a Blues Deluxe. I'm very interested in this thread because I'll probably be experiencing similar problems (although I love the sound of this amp!) I downloaded the service manual from the above link so that I can replace the output tubes and adjust the bias when needed (I can't leave anything alone). I cannot find TP47 on any of the schematics to check the voltage. I've traced from the pot (R82) and still cannot find TP47.
Any help greatly appreciated.

Add: Is TP26 possibly the same as TP47? It's in section 10 with the R82 pot.
Thanks.

[mikeboone]

It appears to be a typo. The indicated TP26 is indeed the test point for measuring/setting the bias.

It is a 1 ohm resistor hanging off the cathode to ground. It is a voltage measurement that equates to the idle bias current. E=IxR and since R is equal to 1, that voltage is equal to the current multiplied by one.

[merlot]

Makes sense. Thanks for the response.