From: farberbear.unspam@aol.com   
      
   On 8/21/2022 9:28 PM, Phil Allison wrote:   
   > David Farber wrote:   
   > ================   
   >>> ** It can be much higher as the resistor is in parallel with the device   
   gate and cathode.   
   >>>   
   >>>> 3. How do I clamp the 12V supply to +1.2 volts?   
   >>>   
   >>> ** The SCR will do that when it triggers on - if it is working.   
   >>>   
   >>>   
   >>>   
   >> Assuming the SCR is working and it's clamping properly, where am I to   
   >> measure the 1.2 volts? The anode is connected directly to the 12 V   
   >> supply and the cathode is grounded. That leaves the gate. Will it   
   >> measure 1.2 V after I remove the 1.5 V supply?   
   >   
   > ** Read my first post again.   
   >   
   > SCRs, once triggered, conduct large currents with small voltage drops.   
   >   
   >   
   > .....   Phil   
      
   Finally got around to testing the SCR and it works perfectly. The only   
   other active components other than the power supply diodes are the two   
   IC's, LM2901 and LM2903.   
      
   Thanks for your reply.   
      
   --   
   David Farber   
   Los Osos, CA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)