From: jl@glen--canyon.com   
      
   On Thu, 22 Jan 2026 10:46:43 -0500, legg  wrote:   
      
   >On Wed, 21 Jan 2026 08:45:53 -0800, john larkin    
   >wrote:   
   >   
   >>https://www.dropbox.com/scl/fi/d7xug1xxazoishocjcwbm/R250_Pot_   
   ore.jpg?rlkey=sakv9lo5ov4a8lx4cjoxzn8f6&raw=1   
   >   
   >Toss the double pcb layers.   
   >   
   >RL   
      
   Do you mean the green board?   
      
   The blue box is the host for a variety of mezzanine boards. It can   
   host two if they don't have tall parts like this pot core.   
      
   The host has all the power supplies (including PoE) and uP and FPGA   
   and all that stuff. The CPU is a dual-core Raspberry Pi RP2040, which   
   configures the FPGA at powerup.   
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)