I don't run a MOSFET because...

[Stealth]

Originally Posted by RaisinBran

If only there was a retailer in country that sold basic mosfets for under $25...

We're working on bridging that gap. In the meantime, between the HH Airsoft FET and the Evike APS FET, I would take the HHAirsoft FET any day of the week. The lack of external diode protection worries me a bit though. Should work fine for lower powered applications.

[RaisinBran]

Yeah i'll probably get the HH airsoft fet then just buy trigger contacts locally. Might get the infected armory one though, I just need a mosfet by the end of next week for a game.

Not sure if any have fast shipping. Evike would be the only one that's fast. They have some silverback airsoft fet for $25 that looks promision.

[PrIeSt]

For what's involved. Even 25$ is pretty high. Should be able to build a simple one for a lot less than that

[ShelledPants]

Originally Posted by takagari

For what's involved. Even 25$ is pretty high. Should be able to build a simple one for a lot less than that

Labor... print materials... packaging... any form of profit...

[PrIeSt]

Originally Posted by ShelledPants

Labor... print materials... packaging... any form of profit...

Build a lot of circuits do you?
In any sort of bulk those could be built at or bellow the $5 range. Maybe less if you shopped around. There's very little involved component wide.
And mini PCB printing is extremely cheap.
Turning a $20 profit off a $5 board is pretty high.

[Stealth]

Originally Posted by takagari

Build a lot of circuits do you?
In any sort of bulk those could be built at or bellow the $5 range. Maybe less if you shopped around. There's very little involved component wide.
And mini PCB printing is extremely cheap.
Turning a $20 profit off a $5 board is pretty high.

And that's exactly it. In Bulk. In high enough quantities, the cost price drops dramatically but does one want to manufacture and stock hundreds of FETs without guaranteed demand? The other factor is that with each release of the "smart" FETs, that demand gets driven down further.

Have you shopped on digikey for how much all the materials cost? The IRLB3034 FET in single quantities is $4.28, add the TVS diode @ $2.79 and you're at about $7 before you add on the wire and shrink tubing (let's ignore the cost of resistors). Let's say you order in quantities of 10, the cost drops to $5.45.

Then let's say it takes you about 20 minutes to make a FET and we'll consider this somewhat specialized labour and adopt a standard rate of $40 per hour (reasonable considering this is the going rate for Gun Doc work). So that's $13 in labour hours + $8-10 in materials and you're sitting at about $21-23 just to cover your bases to be worth your time and troubles. Factor in marketing, responding to customer inquiries and any sort of warranty whatsoever and $25 suddenly doesn't seem so expensive.

[PrIeSt]

I guess if your business model is to build them in your garage...
Also for what they are assembly is more like 5 minutes.
I'm speaking more of printed boards. Surface mount components. Done in a factory. Yes. You'll need to build a few hundred. But costs would be maybe 5$

If you plan to build ten at a time. In your garage. With standard components. Than not only will it cost more. They will be three times the size. Quality control will suck and you won't corner any sort of market with a homemade fet.

Yes I've priced it out..

[Stealth]

Good points. But I have to disagree on the QC issue. Terry's FETs are all built by hand and the failure rate is almost 0. Granted, they're just mounted on a blank perf board with some wire blocks, but the components and software used are solid.

BTC's units are based off of Terry's open-source designs so performance and reliability should all be there.

[PrIeSt]

Yes but that's a lot of crap in a small space and probably cheapily built.

I'm talking just a mosfet,no AB no fuses, a simple mini mosfet would be great for a lot of people and could be sold for $15 with a high chunk of profit.
Surface mount is very hard to do in a garage without a lot of expensive equipment, but is the only way to make the unit's rather small.
Hand done Surface mount, Is horribly unreliable.

[MrMalkov]

The general complexity of installing them I do find highly intimidating. That and I lack the skill set to even try saudering and rewiring my guns.

Plus I do not use Li-Pos.

I guess I am just fine with stock everything on my guns, until something breaks.

[Spike]

I don't use them because everyone I've seen with one has left the field swearing at their big expensive paperweight.

[ThunderCactus]

They ARE very finicky, especially when you have a high performance AEG with any motor on the market that isn't a tienly or eagle force lol
My triggermasters simply would not work with magnums, G&P M120s, M140s, or marui EG700s
They usually require a really well built motor like the EF1300

[Stealth]

Originally Posted by takagari

Yes but that's a lot of crap in a small space and probably cheapily built.

I'm talking just a mosfet,no AB no fuses, a simple mini mosfet would be great for a lot of people and could be sold for $15 with a high chunk of profit.
Surface mount is very hard to do in a garage without a lot of expensive equipment, but is the only way to make the unit's rather small.
Hand done Surface mount, Is horribly unreliable.

We've got something in the works. . . exactly along those lines. (SMT, not hand-done)

[PrIeSt]

Looking forward to it.

[Stealth]

So for those of you waiting for the FETS, this shit just happened.
http://www.airsoftstore.ca/index.php...ex&cPath=35_34

You asked for it, we brought it.

the Gate Electronics GDS-4005 Basic FET.

Has everything you need, nothing that you don't. VERY small package size (3cm x 1.3cm x 1cm) and crimp connectors make installation a breeze. Comes with an integrated heat-sink that reinforces the whole unit.

Just hook this up to your trigger contacts to eliminate trigger arcing forever. Comes with the gate wire and heat-shrink tubing to make the unit water-resistant.

More info here:
http://www.airsoftstore.ca/index.php...roducts_id=134

This one comes with a 12 month warranty.

And for under $20?!! You have no excuse not to get one.




AAAAnd Introducing the Gate Electronics MERF 3.2 AEG control unit.
Features:
* Active Braking
* Programmable 3-rd burst
* Internal protection (lipo battery monitoring, temperature protection, short circuit protection)
* Programmable ROF control and smart trigger
* Handles high-powered applications
* 2 Installation modes - simple and advanced. Simple for straight plug-and-play and Advanced for all the fancy features

Under $70. SAY WHAT?!!

More info here:
http://www.airsoftstore.ca/index.php...roducts_id=135

Oh and it also comes with a 12 month warranty. (WHAT?!!)