Hi Roy.

08-Mar-04 20:07:13, Roy J. Tellason wrote to Jasen Betts


 RJT> Jasen Betts wrote in a message to All:

 JB>> Hi All.

 JB>> I was tring to build a prototype that involved 1M resitors but I
 JB>> couldn;'t get it to behave sensibly

 JB>> I measured 400K between the tracks on the stripboard. dunno if
 JB>> the 30C heat and 100% humidity had anything to do with that.

 RJT> Probably.  You also don't mention if it's phenolic or
 RJT> epoxy-glass,  which seem to act somewhat differently in this
 RJT> respect

phenolic. I've not seen fibreglass stripboard,

 JB>> so I stripped the components off the board and built the whole
 JB>> thing free-standing between two wires...  seems to work now.

 RJT> How high a circuit impedance are you trying to deal with?

at the time it was a 100K base resistor across about 2 volts
but the 12V from the neighbouring track was taking over

 -=> Bye <=-

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