Apparatus for generating applied electrical stimuli signals

An electrically operable stimulator for generation and application of electrical stimuli signals to the body of an animal for control of physiological body conditions, said stimulator comprising:

• a. a pulse generator comprised of:
• 1. unijunction transistor triggering means for energizing said pulse generator when said triggering means is switched from an off condition to an on condition,
• 2. pulse generating transistorized means,
• 3. capacitor means interposed in series relationship to said transistorized means and said triggering means,
• 4. a high gain and high impedance control amplifier in said pulse generator for deriving and presenting an output signal,
• 5. a shorting switch operatively connected to and operable by said control amplifier, and
• 6. a current limiting resistor connected in relation to said shorting switch and to control current flow relative to charge and discharge times of said capacitor,
• b. amplifier means operatively connected to said control amplifier means of said pulse generator and comprising:
• 1. a first amplifier section and a second amplifier section,
• 2. an output level control means operatively connected to said first and second amplifier sections,
• 3. transforming means operatively connected to said first and second amplifier sections to provide an output signal for application to the body of an animal.