[R-390] R-390 RF Gain Control

[Roy Morgan]

To the creative among us,

Some clever person among us likely can design a replacement circuit to function well as the hard to find reverse log taper original gain pots. 

Maybe a pot with the right resistance curve but lower dissipation rating combined with a FET or opto-isolator. 

Roy Morgan
Custodian of more than one R-39x radio. 
K1LKY Western Mass

> On Sep 12, 2021, at 1:11 AM, Kevin Schuchmann via R-390 <r-390 at mailman.qth.net> wrote:
> 
> Hi All,
> 
>    Hunting around I found this on Ebay and I have ordered one. https://www.ebay.com/itm/164923700436