• 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.

PC Mount 9-Pin Tube Socket Layout

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#2
Bleh, I had the reply tready but hit close button by accident 🙁

Anyway, there is no such thing as a "standard 9-pin tube socket". I have two different types of noval 9-pin socket here, the smaller one (included in Eagle tubes.lbr library) and the larger one (which I had to add to the library myself).

Pins are spaced equidistantly (with 10th pin missing, obviously) around the circumference of a circle with diameter of 17 mm (smaller, plastic socket) or 21 mm (larger, "ceramic" socket that can be found on eBay quite cheap from Chinese sellers).

Since pins will wiggle a bit they can easily fit onto standard 25 mil (or was it 50 mil ? not sure but I think it's the former) routing grid to allow for easier PCB routing. If you need pin coordinates so you can draw your own socket layout, let me know and I'll look them up.
 
#3
I can do the layout, just wondered if the JPEG I listed in my first post was typical for a 9-pin socket or if every socket manufacturer are wildly different.

Just need something to get started.

I'll check the Eagle library for another data point.

Thanks!


Arnulf said:
Bleh, I had the reply tready but hit close button by accident 🙁

Anyway, there is no such thing as a "standard 9-pin tube socket". I have two different types of noval 9-pin socket here, the smaller one (included in Eagle tubes.lbr library) and the larger one (which I had to add to the library myself).

Pins are spaced equidistantly (with 10th pin missing, obviously) around the circumference of a circle with diameter of 17 mm (smaller, plastic socket) or 21 mm (larger, "ceramic" socket that can be found on eBay quite cheap from Chinese sellers).

Since pins will wiggle a bit they can easily fit onto standard 25 mil (or was it 50 mil ? not sure but I think it's the former) routing grid to allow for easier PCB routing. If you need pin coordinates so you can draw your own socket layout, let me know and I'll look them up.
Click to expand...
 
#6
That's precisely what I told you above, those only fit the smaller (plastic) sockets that I also happen to have. I had to create my own footprint that fits the larger sockets. Both noval and PCB mountable, but different dimensions ...
 
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