• 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.

pcb printing companies

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I've dealt with a couple of PCB companies.

Production quality, tight spacing stuff:
Quote PCB

At work we use Advanced Circuits, though, I haven't dealt with them personally:
Advanced Circuits

If you can live with the limited board area and options, Express PCB can be a good deal:
Express PCB
You have to use their (free) software, though. If you start looking at custom sized boards, you'd be better off going with other vendors (IMO).

A couple of weeks ago I just received about $200 worth of boards from Olimex. I really like their service and the price is right for low volume production or prototypes. They offer two standard board sizes - 10x16 cm (about 4x6 inches) and 20x32 cm (about 8x12 inches). You buy the board area do whatever you want with it (unlike many other companies). They are a bit limiting in terms of trace/space (min 8/8 mil) but for tube stuff that's hardly relevant. Olimex They accept Gerber files.

~Tom
 
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