[Elecraft] K2 4777 Good news/Bad news and questions

[Dan Barker]

I don't know enough to be sure, but here's my stab in case noone else chimes
in.

r82/r83 appear to be a voltage divider for q22.

If r82 becomes 22ohm, then r83 ought to go up 122% also.

Another thought, since there's lots of room on that part of the board.

Use 2 of each (15, 22), series/parrallel and make 18.5. Then order right
part and put it in when it shows up.

   +-- 15 --- 22 ---+
---|                |---
   +-- 15 --- 22 ---+

or two 33's or two 4.7's and a 10, or ....... whatever.

Dan / WG4S / K2 #2456


<snip>

2.  Concerning the smoked resistor,  is it imperative that I replace it with
an 18 ohm resistor?  Or, can I opt to replace it with the closest standard
value I have on hand (which is either a 15 or 22 ohm)?  I ask this, since I
don't know the design criteria.  But, (from what little I know about design)
I know that often (when a circuit is designed) the values that are
calculated (for a particular component) are often replaced by the closest
standard value that is on hand.
</snip>