"Adrian Tuddenham" wrote in message
alid.invalid...
Bruce Esquibel wrote:

Adrian Tuddenham wrote:

They certainly look strange when you have been used to the
point-contact symbol, but you must admit they give a clear
representation of a junction transistor.

No they don't.

You guys talk about faded photocopies and the usage of 2.2K vs. 2K2, it
ever
occur to you a faded photocopy of the BassAmplifier2.gif, those
transistors
come out looking like diodes?

Perhaps, but there aren't many diodes with three wire connections that
they could be mistaken for. The direction of the arrows might be lost
if they became blobby, but so would the arrows on the point-contact
symbol.


The symbol for an adjustable zener, used typically in switch mode power
supplies, looks pretty similar :-)

Arfa