STUNGUN All work done by APOLLO. The usual bull: Disclaimer: ------------ This is an High Voltage electrical device and must be used with discretion. The builder agrees to assume all liability for any damages and bodily injury (both primarily and secondary) which may result from the use or misuse of this product. I make no claims as to the user's safety or stopping power of this device.In other words, I don't give a damn when you stun somebody down on the stairs, and he breaks his neck by falling down. You're free to use this program; However, if you use this device in hold-ups or bank robbery, 5% of the plunder must be paid to me. I accept cash and all major credit cards are welcome ! WHAT IS IT ??? -------------- The following plan show how to construct a device, capable of stunning any moving lifeform on earth.It can be build into a holster.The device produces an intimidating plasma or lightning like discharge that in most cases discourages an encounter.This effect occurs as a visual audible display between the contacts immediately when power is applied.A physiological effect requires contact to certain parts of the anatomy to produce the stunning disabling function.The electrical output energy is small and usually will not cause any tissue damage.When contact is made to the subject, he may be stunned and paralysed for up to several minutes.The high voltage output can penetrate the heaviest of clothing and due to the contact spacing will deliver highly jamming electrical pulses that will override the nervous system causing temporary paralysis and loss of voluntary control. That's why this stun-gun doesn't work on aliens who have no or another nervous system.Cyborgs and androids however, can be defeated or even destroyed and send to the eternat space-time-continuum by using this device. What do ya need ?? 1 R1 1K 1/4 watt resistor 1 R2 100 to 200 ohm 1 watt resistor 1 R3 2.2 to 2.7K 1 watt resistor 1 R4 10 ohm 1/4 watt resistor 2 R5,8 100 ohm 1/4 watt resistor 1 R6 Selected resistor-nominally 68K 1/4 W 1 R7 22 to 27K 1/4 Watt resistor 1 C1 10 mfd @25V to 35V elect cap 1 C2 3.9 mfd @350V cap 1 C3 1 mfd @25V to 50V elect cap 2 D1,2 IN4001 diode 50V 6 D3,4,5 IN4007 diode 1000V 6,7,8 2 Q1,2 D40D5 NPN pwr tab tran 1 Q3 2N2646 UJT 1 SCR1 MCR 106-8 or C107D or 2N4444 1 T1 Type I pc transformer 2 T2,3 50KV pulse transformer (25KV @200V) 1 SW Push button switch 1 8 AA cell battery pack CIRCUIT THEORY -------------- The circuit consists of 2 basic sections: the inverter power supply and the capacitor discharge section. The inverter section consists of swithching transistors Q1 and Q2 that alternately switches the primary windings of a saturable core transformer (T1). A high voltage square wave is induced in the secondary of T1 via the switching action and is rectified by diode bridge D3,4,5,6.Base current drive for Q1 and Q2 is obtained by a tertiary feedback winding on T1 and is applied in the correct phase to turn the appropriatetransistor 'ON'. This base current is limited by resistor R2. Diodes D1 and D2 provide a return path for the base current flowing in the opposite transistor respectively.R1 serves to unbalance the circuit to initiate swithching.A voltage of approx. 400 volts is obtained in this circuit from a 9.6 volt Nicad battery.Higher powered operation may be obtained by increasing to a 12 Volt battery pack,however, more space is required and care must be taken not to over rate the components if continued use is anticipated. The capacitor discharge section consists of 2 opposite phased high voltage pulse transformers T2,T3 being current pulsed via SCR1 shorting a charged capacitor C2 across their primaries. C2 and the primary inductance of T2,T3 provides a ringing wave whose negative overshoot commutates SCR1 to turn 'Off'. It is imporant that this primary inductance be sufficient so when combined with capacitor C2 allows a ringing frequency with a period considerably larger than the required commutation turn off time of the SCR1. iode D8 provides energy recovery of the negative overshoot component of this discharge pulse. Transformer T2,T3 now force induces 'out of phase' high voltage pulses in their respective secondaries with a high instantaneous peak current.Diode D7 and R3 limit the DC current to the SCR1 and prevents DC lock on,which also provides a high impedance to the negative turn 'off' pulse. SCR1 is triggered by the UJT pulse timing circuit consisting of Q3.Pulse repetition rate is determined by capacitor C3 and the charging trimpot R6. SCR1 switch rate can be adjusted from 1 to 50 pps.Higher pulse rep rates may have a tendancy to overload the inverter power supply,where it will be unable to supply the current necessary to charge C2,consequently with its charge voltage dropping off. The voltage output is about from 50-100000 volts at a peak current of 1-2 Amps The energy waveforms consists of a train of 30 microsec pulses decaying exponentially.This produces a moderately painful electric shock and is what causes the temporary jamming of the nervous system but will not electrocute due to the low average current plus the fact that the current flow is only across a small section of the body,that is between the contact electrodes. The peak power of this device is 25000 watts plus. The outputs of T2 and T3 are the output contacts of the device. T2 and T3 are phased for different outputs.Now when the switch is pushed,a continuous sparking occurs between these points producing the visual and audible effect. About the schematic : This is the first time that I drew a schematic with AsciI chars. Maybe it therefore doesn't look 100% professional. However I'm sure that you'll know what I mean with this schematic. Some things you need to know : As i tryed to malke this drawing compatible with most printers,i didn't use the 'arrow'-char. Therefor the emitter is indicated with an 'e' on Q1 and Q2. I preferred to draw the bridge,as bridges are mostly drawn,so I couldn't draw the diodes as I did with D7. That's why I indicated the Kathode with the letter 'k'.So in this schematic, D3 points up,D4 points down,D4 points down and D6 up. SCHEMATIC ---------- ÚÄÄÄÄÄÄÄÄÄ¿ ³ o ³ k / \ ³ D3 D4 ³ / k\ (w) D7 R3 ³ ÚÄo oÄÄÄÄÄÄÄÄÄÄÄÄ>³ÄÄÄÄÄÄÄÄÄÄÄÄÄ/\/\/\ÄÄÄÄÄÄÄÄÄÄÄ¿ ³ ³ \ k/ ³ ³ /// D5 D6 ³ ³ k\ / ³ ³ o ³ ³ A ÀÄÄÄÄÄÄÄ¿B ³ ³ ³ ³ À~~~~~~~~~~~~~~~~~Ù ³ ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ³ T1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ~~~~~~~~~~~~~~ÄoÄ~~~~~~~~ÄÄÄÄÄÄÄÄÄÄ¿ ÚÄÄ~~~~~~~~~ÄÄ¿ ³ ³E G ³ F H³ ³C D³ ³ ³ oÄÄÄR1ÄÄÄÄÄÄÄÄÄoÄÄÄÄÅÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄo R2 ³ ³ ³ ³ +ÄÁÄ+ ³ ³ ³ / ³ ³ \ batt. oÄÄÄÄÄÄÄÄ¿ oÄ´/ Q2 ³ ³ Q1 \³ÄÄÄoÄÄÄÄ¿  ³ ³ ³ ³\ ³ ³ /³ ÄÁÄ ³ o ÝS ÄÁÄ ³ ÄÁÄ \e ³ ³ e/ /³\ D1³ o ÝW C1 ï ³ D2 /³\ ³ ³ ³ ³ ³ ³ ³ ³ common³ ³ ³ ³ ³ ÀÄÄÄÄÄÄoÄÄÄÄÅÄÄÄÄoÄÄÄÄÄÄÄÄÄÄoÄÄÄÄoÄÄÄÅÄÄÄÄÄoÄÄÄÄÄo ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ /// ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ÀÄoÄÄÄÄÄÄÄÄ¿ ³ ³ R6 ³ R5 ³ ³ ³ R7 ³ ³ 4 Û ³ ³ ÀÄÄÄÛ____o ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄoÄÄÄÄÄÄÄÄÄÛ 1 ³ <--- Q3 ³ ³ ³ 2 Û ³ ³ ³ R4 ÄÁÄ ³ ³ ³ C 3 ³ ³ ³ ³ ³ ³ /// /// ÀÄÄÄÄÄoÄÄÄÄÄÅÄÄÄoÄÄÄÄ´(ÄÄÄÄ®oÄÄÄ¿ T2 ÚÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜ ³ A ³ ³ C2 ³ A³  ³³ ³ center pin SCR1 V ³ ³ ³ ) ³³ ( : ßßßßß ³ ÄÁÄ ³ ) ³³ ( K ³ \ G ³ /³\ D8 ³ ) ³³ ( : ³ \ÄÙ ³ ³ ) ³³ ( approx ³ ³ ³ ) ³³ ( 100.000 Volts /// /// ³ ) ³³ ( between these points ³ C³ ÀÄÄÄÄ¿ E : ³ ³ ³ ÚÄÄ®oÅÄÄÄÙ ³ : /// ³ÀÄÄÄ¿ T3 ÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜÜ ³ B ) ³³ ( ³ center pin ³ ) ³³ ( ³ ³ ) ³³ ( ³ ³ ) ³³ ( ³ ³ ) ³³ ( ³ ÀÄÄÄÄÙ ÀÄÄÄÄÙ D  Assemble as shown.Note position of transistors,polarity of diodes and capacitors.Nothe that when using the special pc transformer T1,it can be inserted in two ways.A way to determine the correct position is to measure the resistance of the two windings and identify 'em.The one with the lower reading goes toward Q1 and Q2. Connect up 8 AA Nicads (or whatever). Connect a voltmeter to point (w). Momentarily press S1 and note a voltage of approx. 400VDC. If no voltage is present, the circuit must be troubleshot. If you did your homework well and Murphy's 1st Law 'whatever can go wrong, will go wrong' is broken, you should detect a HV pulsing at the output pins of T2 and T3. Adjust R6 for a discharge from 5 to 30 shots/sec. This should correspond to a battery current of 1 to 2 Amps when measured by connecting a current meter across the switch.Caution, coz this action shorts out S1. The pulse rep. rate should not be set where the battery current exceeds 2 Amps.