Eml synthesizers

> Is there a way to date my 500? I've read somewhere that "pot codes" 
are a way of 
> dating electronic equipment. what are they?


Many ICs also carry date codes, often in the format "yymm", eg 7923 
would suggest
an IC was made in the 23rd week of 1979.   ICs may have been made a 
year or two
before they were built into the synth, but if you read the date code 
from as many ICs as possible and find the latest one made (assuming it 
hasn't been replaced), that'll give you a clue.   Not very accurate, 
but better than nothing.


Steve