User's Manual

UT5 - 13
 Connect speaker & volume control as shown:
2. GENERAL PURPOSE TEST OSCILLATOR (200 to 20,000 + Hz.)
 Same as above, plus:
 Add switches and capacitors as desired for maximum range and conveniences.
3. PRACTICE METRONOME
 Same as No. 1, but try C1 at 47 uf.
 If desired, add an LED and 1K resistor in series across the speaker capacitor.
4. "TICK TOCK" SOUND PULSE GENERATOR
 Same as above, but try values like 100, 220, 330 uf for C1.
5. PET & PEST "COMMUNICATOR"
Extremely high pitched sounds have varying effects on both pets and pest animals. Values like .001 uf for C1, using
the same circuits above with a high frequency response speaker will put you into that world of experimentation. They
say that some insects also stay clear of ultra-high-pitched sounds.
F
E
A
J2 R6
+
+5 - 15V
TONE (PITCH)
4.7 to 10uF
KE
Y
R3