Archive for October 30th, 2008

Etching Copper Plates with Cupric Chloride

Thursday, October 30th, 2008

  I was surprised to discover that several amateur electronic workers were etching their copper circuit boards with cupric chloride instead of ferric chloride like in the past. It turns out that this chemical can be regenerated easily with the addition of oxygen from hydrogen peroxide or other oxygen containing chemicals. The electronic industry had […]


Warning: Unknown: open(/home/content/74/6125674/tmp/sess_grhc95r8pf149dsbusgjhhkpp7, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in Unknown on line 0