🚀 go-pugleaf

Here are my improvements. Easy, cheap and powerfull:

Add an rectifier to the input lines. This prevents from any damages due
to wrong connection. Just connect the AC-inputs to the line and
"+"-output to "Phone+" the "-"-output to "Phone-". Add an simple Diode
from pin 5 in the picture to the +9V point facing the battery (the
marker ring should point at the bat.). This will help against CMOS
overload problems.

                                                            +9V
                                                             |
Phone+   -----+                                              |+
              |                                             LED
              R 2.7Mohm                                      |-
              |                                              |
              |                                              R 680 ohms
              |         5 |\ 4          3 |\ 2               |
              +-----------| >o------+-----| >o---------------+
              |           |/ 4049   |     |/ 4049            |
              |                     |                        |
              |                     |                        |
              R 0.56Mohm            |  14 |\ 15              |
              |                     +-----| >o---------------+
Phone-  ------+                           |/ 4049
              |
              |
             GND


By the way.....

In his article Roger writes:

>
> Voltage going into pin 4 of 4049 is:
>

this should mean:

Voltage going into pin 5 of 4049 is:

That's it!

Christian.