From: jl@glen--canyon.com   
      
   On Thu, 08 Jan 2026 04:27:25 GMT, Jan Panteltje    
   wrote:   
      
   >>john larkin wrote:   
   >>>   
   >>https://www.microwavejournal.com/articles/45122-the-design-of-   
   ery-narrowband-tunnel-diode-negative-resistance-amplifiers   
   >>   
   >>I got excited to see this article, until I realized that they used an   
   >>obsolete germanium tunnel diode from an old-parts dealer.   
   >>   
   >>Pity. I liked tunnel diodes.   
   >   
   >I have a tunnel diode from ebay somewhere   
   > https://www.ebay.com/sch/i.html?_nkw=tunnel+diode   
      
   Yikes. I paid 10 cents for mine.   
      
   But modern ICs are mostly faster these days.   
      
      
   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)