• 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.

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My 813 PP amplifier.
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.... not finished PP amplifier Grommes A260 modified schematic with GU50 final tube . Left only connection of electrical parts ..... :) and I hope to be ready next week ....:D
 

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Last edited:
.... not finished PP amplifier Grommes A260 modified schematic with GU50 final tube . Left only connection of electrical parts ..... :) and I hope to be ready next week ....:D

Hi, amazing results!
Can you show inside to see the technique you use there?
Can you attach the Grommes diagram?
I like so much your finishing.
How it sound?
I'll Imagine..... proportional to the pics:eek:....
 
.... not finished PP amplifier Grommes A260 modified schematic with GU50 final tube . Left only connection of electrical parts ..... :) and I hope to be ready next week ....:D


Amp looks fantastic even with these ugly tubes. Even i found these tubes ugly i want to build my self an amp to with these ones. Love your aluminum case that fits the tube's "hat".
 
I have Lowthers

The little hole of 206E is very big provocation for kids....:D:whacko:

They are in Horns of a prisma form of 120 tall 30 wide and 85 of deep. These are a provocative for each kid that come to visit us. I put a grid covering but when I am a serious listener. And someone come to home i start to shake of terror.
Further the wife factor related to the volume, form and color. Another object in Our living room!!! :mad:
I didn't know that some wife belong to this post. Sorry maybe they have the husband factor. But I suspect that is more benign that the counterpart.
 
.....connection have finised this evening , I will start tomorrow after double check ........now I'm sleepy :sleep:
 

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