From: xtrchessreal@gmail.com   
      
   On Thursday, October 1, 2020 at 8:57:07 PM UTC-6, palli...@gmail.com wrote:   
   > Xtrchessreal wrote:   
   >   
   > ===================   
   > > Section 1 is so called due to lower hum compared to section 2.   
   > >   
   > ** The 2 triodes of a 12AX7 / ECC83 are identical, one doe not "hum" more   
   than the other.   
   >   
   > Internal connection arrangements for grids and heaters vary between versions   
   and brands, maybe having a small effect on capacitive coupling if high   
   impedances feed he grids.   
   >   
   > It is very common to use DC voltage for the heaters to eliminate any issues   
   whether grid or cathode related.   
   >   
   >   
   >   
   > .... Phil   
   Just read the REMARK on the bottom of page one.  https://drtube.   
   om/datasheets/ecc83-philips1970.pdf   
   I don't understand the perpetual misinformation.  V1B is triode with pins   
   6,7,8.   
   But hey, thanks for making my point more clear.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)