• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

6N1 + 6P3P build, need some help.

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ballpencil

Member
Joined 2013
Did you check the bias voltages? Assuming it's the kit from siliconray, there should be about:
> 120v on 6N1 plate
> 1.75v on 6N1 cathode
> 19v on 6P3P cathode

If everything checks out, try removing the feedback resistor.

If it's not the siliconray kit, a schematic would help.
 
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M

marmot19

Member
Joined 2013
ballpencil said:
Did you check the bias voltages? Assuming it's the kit from siliconray, there should be about:
> 120v on 6N1 plate
> 1.75v on 6N1 cathode
> 19v on 6P3P cathode

If everything checks out, try removing the feedback resistor.

If it's not the siliconray kit, a schematic would help.
Click to expand...


Hi Ballpencil, Thanks for helping...

I mesure the exact same voltage @ +/- 2 volts for 6N1 Plate. This is not a kit from sillicon ray but it is basically the same, but I have received another schematic than the one from sillicon ray..

I'll try to join the schematic, pardon me if it dont work, i'm new to the forum...
 

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    6p3p schematic.png
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ballpencil

Member
Joined 2013
Schematic looks fine so if you follow it as shown, there should be no problem.
If you have confirmed these voltages:
> 120v on 6N1 plate --> confirmed OK as you said
> 1.75v on 6N1 cathode
> 19v on 6P3P cathode
then most probably it's a miswiring or the wrong part on the wrong position.
 
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