In a message dated 2007/08/11, gmvoeth@........... writes:

> Comments welcome as well as improvements.
> 
Hi Geoff,

      The 400 Ohm HS-10 requires a 2050 Ohms damping resistor and you have 2 
K Ohms. 
       You need a second 0.33 mu F capacitor across the 100 K resistor to 
Earth to balance the circuit. The 0.33 mu F across the input terminals is not 
doing anything!

       Regards,

       Chris Chapman   
In a me=
ssage dated 2007/08/11, gmvoeth@........... writes:



Comments welcome as well as imp=
rovements.



Hi Geoff,



      The 400 Ohm HS-10 requires a 2050 Ohms dampin=
g resistor and you have 2 K Ohms. 

       You need a second 0.33 mu F capacitor a=
cross the 100 K resistor to Earth to balance the circuit. The 0.33 mu F acro=
ss the input terminals is not doing anything!



       Regards,



       Chris Chapman