Open Source DHT Estat Headphone Amp -- OSDEHA

[mbrennwa]

Whoa! Is there any documentation for this kind of stuff?

I already ordered the first set of prototype boards, but I don't expect them to be perfect. The custom rules may be useful for the next prototype

 

[JeffYoung]

There's a doc link at the very bottom of the Syntax Help window.

 

[JeffYoung]

Pfft. A link that returns a 404. Sigh.

Try https://docs.kicad.org/8.0/en/pcbnew/pcbnew.html#custom-design-rules

[Edit: the link probably does work for regular builds. It just doesn't work in development builds.]

 

[mbrennwa]

First prototype boards are in, most parts are in, so building begins!

• Heater supply for the input tubes is built and works.
• Time delay for B+ and B- is built and seems to work (may need more testing).
• High-voltage supply for negative bias and buffer stage is built and works.
• B+ and B- supply is built, but not yet tested.

So far it went pretty smooth. Part of the GND plane was not connected properly on the PCB, one of the rectifier diodes was wired backwards, and a BC550 released her magic smoke. All easy fixes