what does "SOT" mean? and "hor encl"?

[Kyle Jarger]

matt wilson <sebsi23 at hooked.net> wrote:

> i'm about to build a LM13700 based VCA and the schem' calls for
> a resistor valued at "SOT". what gives?

SOT means "Select On Test" or "Set On Test".  You are supposed to 
measure some parameter of the circuit, or otherwise test the circuit, 
with a trimpot connected, adjust the trimpot for the desired result,
then disconnect and measure the trimpot,
and then install the appropriate resistor in its place.
With no more than a "SOT" label on the schemo, good luck!
You really need something like "select for minimum offset" or 
"select for minimum output noise" to know what to look for when 
adjusting the pot.

>everyone but me knows what this is....the same schem (maplin) refers
>to a "22k hor encl preset" resisistor: this is obviously a

I speculate tha "encl" would refer to an enclosed trimpot, as oposed to an 
"open frame" type. Don't know about "hor", though.  Also, who ever 
heard of a 22K trimpot?  It seems to me you would only be able to 
purchase 10K, 20K, 50K,..etc. values, but I could be wrong...

Regards,

Kyle Jarger
jkjelec at tiac.net
JKJ Electronics
Visit our MIDI/CV converters website 
http://www.tiac.net/users/jkjelec