Chris Crawford Electro-Etch Output

[TXscout]

JFYI, the difference between the AC and DC output is due to the voltage drop caused by the bridge rectifier ( I haven't seen Chris's plans, but am sure that is how his works).
The AC output should be about 3 volts higher than the DC output.

Thanks--That answered my intial question. I had figured that the voltages would be equal, but that makes sense with the voltage drop from the bridge rectifier.

 

[Tait]

I'm glad you got it.

Your layout is so close to identical to mine that there is no need for me to post a pic - mine is laid out in the opposing order, but otherwise essentially idnetical.

Have you tried it with a stencil yet?

 

[Erin Burke]

The reason I was curious about the middle wire to ground was because (1) there was somebody (Erin a.k.a. "Hypocrite") who had some trouble blowing fuses...

Heard my name mentioned.
Never figured out why I was frying the 1A fuses, but when I went to 2A everything worked out great. I only used the 12V leg off the transformer. Output voltages (AC & DC) are good, and this thing has been working great for me for the past year or so.

This is kind of cool - next I need to get a stencil!

As mentioned earlier, Ernie is the man for that. :thumbup: