This
section simply provides a means for connecting an external well regulated
dual-rail power supply (15-0-15DC @ 100mA ).
There is also room for fitting two smoothing capacitors. These should have a minimum value of 1000uF @ 25V.
The recommended design† for a power supply can be found here:-
†!
WARNING !
Readers should be aware that constructing these circuits involves working
with mains power components. Readers are advised that they should not
attempt this module unless they are fully aware of the various safety
requirements relating to this type of circuitry. There are several good
ready-made designs that the reader should consider if there is any doubt
or concern regarding the building and use of this module.