[time-nuts] pcb question

SAIDJACK at aol.com SAIDJACK at aol.com
Fri Jun 6 23:41:20 EDT 2008


Hello Norm,
 
yes, you are right, that's the way I do it. You can see that on the two  
attached pics. You can also see that I sometimes cut small islands into the  
Copper with an Exacto knife to solder down through hole parts and Tantalum caps  
for example.
 
For SMD IC's I solder down the GND pins, then use small caps from the board  
to the power pins, and wire the VCC with rework wire.
 
Excuse the poor picture/board quality, these are the only two boards I had  
able to be photographed - I usually use thermal glue to seal the  finished 
boards.
 
This is a very quick and dirty, and surprisingly good electrical way to  
build something. I've done circuits with over 1GHz like this!
 
Hope that helps,
bye,
Said
 
 
In a message dated 6/6/2008 15:50:40 Pacific Daylight Time, SAIDJACK  writes:


  
____________________________________
 From: normn3ykf at stny.rr.com
To: SAIDJACK at aol.com
Sent: 6/6/2008  14:15:10 Pacific Daylight Time
Subj: pcb question


Said,
I subscribe to the timenuts reflector. A few  days ago(June 2), you 
described a method of dead bug construction using  SMT IC's and discrete 
components. Do you have any pics of the details?  How exactly do you 
attach the bypass caps to the power pins?
My  assumption is you're using single sided fr4 and the copper is ground,  
with vcc wired as needed.

This will be my first try at SMT. I've  played a bit with wire wrap and 
plugboard.

This will be used for  a pulse shaper/divider network.
Thank you for any help!
Norm  n3ykf






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