Airsoft Canada - View Single Post - AKS-74U PTW

mcguyver · September 26th, 2007, 01:55

Likely it uses a IR emitter and sensor installed in the hop-chamber. Not a new mod. It's been around via tinkerers for some time.

A FET acts like exactly like a relay, except it switches thousands of times faster (no contact closure time) and there is no arc formed at the contact points. In other words, all your available voltage and current from your battery is not impeded at all by your trigger switch and gets to where it's needed, the motor. FETs can also be used as variable resistors and diodes as well and are used in dynamic (active) braking of motors.

And a purpose built gun is fine at $500 U.S.. But the success of the PTW is that it is NOT purpose built. It can go from 300-500 fps in seconds. 99% of PTW owners buy them for this reason and only this reason. The rest (modular uppers, empty mag cut-off, super fast response, built like a tank, proper weight and balance) is gravy.

September 26th, 2007, 01:55	#6
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	Likely it uses a IR emitter and sensor installed in the hop-chamber. Not a new mod. It's been around via tinkerers for some time. A FET acts like exactly like a relay, except it switches thousands of times faster (no contact closure time) and there is no arc formed at the contact points. In other words, all your available voltage and current from your battery is not impeded at all by your trigger switch and gets to where it's needed, the motor. FETs can also be used as variable resistors and diodes as well and are used in dynamic (active) braking of motors. And a purpose built gun is fine at $500 U.S.. But the success of the PTW is that it is NOT purpose built. It can go from 300-500 fps in seconds. 99% of PTW owners buy them for this reason and only this reason. The rest (modular uppers, empty mag cut-off, super fast response, built like a tank, proper weight and balance) is gravy. __________________ Age verifier Northern Alberta Democracy is two wolves and a sheep discussing what's for dinner. Freedom is the wolves limping away while the sheep reloads. Never confuse freedom with democracy.