Sound Generator - Jet engine aircraft
This is a simple sound generator to produce jet engine aircraft sounds and it will run on any battery voltage between 3v and 40v.
The circuit will produce 4 sounds : low speed sound of aircraft, high speed sound of aircraft, missile and machine gun. They are activated by connecting pins 12, 13, 14 or 15 to ground respectively.
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LM138 LM238 LM338 datasheet
The lm338-datasheet/">lm238-lm338-datasheet/">LM138/LM238/LM338 are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 5A over a 1.2V to 32V output range. They are exceptionally easy to use and require only 2 resistors to set the output voltage.
LM138 LM238 LM338 features:
.GUARANTEED 7A PEAK OUTPUT CURRENT
.GUARANTEED 5A OUTPUT CURRENT
.ADJUSTABLE OUTPUT DOWN TO 1.2V
.LINE REGULATION TYPICALLY 0.005% /V
.LOAD REGULATION TYPICALLY 0.1%
.GUARANTEED THERMAL REGULATION
.CURRENT LIMIT CONSTANT WITH TEMPERATURE
.STANDARD 3-LEAD TRANSISTOR PACKAGE
lm138-lm238-lm338-datasheet
Power supply 4-30V 20A LM338
This is a regulated and adjustable power supply which can deliver up to 20A and adjustable voltage between 4 and 30V. It is easy to build and uses LM338 and 741 integrated circuits. VR1 it is used to adjust the output voltage.
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