Blues Jr Bias ?

[gtrplayr1976]

Is biasing with the Hoffman board the same as with the original ? On the original I measured voltage drop between the OT CT to the plates.
Thanks !

[sluckey]

You can do that. But Hoffman included two 1Ω resistors on the board to make monitoring bias current much easier and safer.

[gtrplayr1976]

You can do that. But Hoffman included two 1Ω resistors on the board to make monitoring bias current much easier and safer.

Thank you ! What's the procedure for that ?

[sluckey]

I don't know that there is a procedure specifically for that amp. Use this...

http://www.duncanamps.com/technical/lvbias.html

[gtrplayr1976]

I don't know that there is a procedure specifically for that amp. Use this...

http://www.duncanamps.com/technical/lvbias.html

Thank you !

[purpletele]

I don't know that there is a procedure specifically for that amp. Use this...

http://www.duncanamps.com/technical/lvbias.html

Thank you !

GTplayer1976,

I just went through the procedure and referenced Doug's article on biasing amps

http://el34world.com/charts/fenderservice5.htm