XPost: alt.slack, alt.slack.goathead   
   From: melopsitticus@undulatus.budgie   
      
   On 1/7/2026 13:01, Sn!pe wrote:   
   > phoenix  wrote:   
   >   
   > [...]   
   >> Phototransistors are not really transistors in function IMO, I prefer to   
   >> think of them as light-sensitive diodes. However, considering them   
   >> transistors can help explain what a transistor does to the unfamiliar.   
   >> When light hits the phototransistor, it allows current to pass.   
   > [...]   
   >   
   > Back in the day, I scraped the paint off of a 0C71; it made a   
   > pretty good phototransistor, so I'd take issue with that.   
   >   
   > I grew up with discrete components so none of what you write   
   > is news to me   
      
      
   I bought a sack of 2N229 geraniums back in 1956 from a lot radio parts   
   store and made some amplifiers with 'em. They worked good but ft was   
   about 300 kHz which ain't that great. Then I got an account with Evans   
   Radio where I could get all kinds of stuff and switched to RCA and   
   Fairchild Si planar parts like 2N2102 and life got magic   
      
   --   
   Grizzly H.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)