BIOELECTRONICS
Build The Electrosonic Human in the 200 in One Electronic
Project Lab. It takes about 10 minutes.
Later, when you use the probe to press against your knuckle
you may find getting the right sound is painful. In this case try
substituting the .005 microfarad capacitor for the .01 microfarad
capacitor in the circuit.
Attach the Probe. The Archer Precision Mini-Hook Test
Lead Set has a banana plug for the probe on one end and a mini-
hook on the other end for easy attachment to the circuit. Tape a
long, new pencil to the probe to make it easier to hold. Connect
the Probe to middle post of the primary side of the transformer (it
also connects to the negative battery post). You will not be using
the two connections the instructions tell you to hold.
Attach the Handhold. Clip the Handhold to one end of an
alligator clip test jumper, and clip the other end to the base (B)
of the transistor used in the circuit.
Attach an alligator clip to the post of the transformer that
connects to the two capacitors. This will go to the test plates.
Final test. Turn the control knob on and keep turning the
potentiometer to nearly the maximum. (This reduces the resis-
Alligator clip test jumpers You need 2.
Handhold. A four inch length of ¾
inch copper pipe, like for plumbing.
These dimensions are critical to
assure maximum skin contact.
Probe. A banana plug. Precision Mini-Hook
Test Lead Set (contains
two, you only need one)
278-1160A
Pencil, new.
Fig. 80 Syncrometer parts list.