Homebrew PCBs

Some good places to look for links to tutorials:
http://groups.yahoo.com/group/nwpropmasters/links
http://groups.yahoo.com/group/mad_scientist/links

A good place for links and to ask for help learning
electronics:
http://groups.yahoo.com/group/Electronics_101/

The ultrasonic cleaner schematics should have part
numbers for the transistors. I'd suggest going to the
Electronics_101 list, post the schematic to the files
section and ask for help there. I'm on that list also,
there are over 1000 members.

Steve Greenfield

--- J Mitchell <jonster_man@...> wrote:
> Hi,
> 
> I have been lurking on this list for ages, as I want
> to learn more about electronics (especially
> interfacing pic chips to the real world), but as of
> yet I am still learning and mostly confused! :o)
> 
> Although I can assemble small project PCBs and
> roughly understand how they work, my understanding
> of why "that" resistor is "there" is next to zero.
> 
> I have a couple of questions for the group.
> 
> 1.    are there any good basic electronic foundation
> tutorials on the net? all the ones I find are too
> basic (like what a resistor is)
> 
> 2.    Anyone here have any experience of ultrasonic
> cleaning baths? I have the schematic for the
> electrical side, with an explanation of many of the
> components, but I have no idea what specific
> components to use, anyone interested in looking at
> the schematic, helping me make one of these and
> furthering my electrical experience and
> understanding?
> 
> thanks in advance
> 
> Jon
> 
> PS:    Anyone here ever known someone to buy one of
> the cheap (under $300) fibrescopes? (also known as a
> borescope or endoscope)... I would love one of
> these, but I suspect they are trash.


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