Intercooled Memorex - VV

[NicksVap3]

this started with me trying to make a VV PSU off the 12v from my PC. the rheostat did not get the voltage low enough to be usable at 12v. so i used an old memorex controller as a battery pack for 2 10440s. while testing it i relized it would be sufficient in this configuration and all would fit in the controller.

items used:
1 nyko intercooler ts for fat ps3 (also salvaged 4 40mm 12v fans)
1 memorex dvd controller

the silver wheel is for the rheostat

i need to source a momentary switch, some smaller gauge wire and a 510 connector. looking what i can hack apart to finish i have an old DVD player thats looking good for a switch and wire
this is a VV HV mod. testing in that config is about 5.2-7.6v, im hoping with smaller gauge wire and an atty to get it down a little more in the end, 5v up would be nice

ps: why is it all things ive hacked apart have the battery terminals ON the PCB???

 

[NicksVap3]

sourced wire and a button from a daewoo dvd player from like 01. actually got 12 of them buttons, a bunch of female rca connections and another pot... and tons of wire. not sure what else ill salvage but yeah, tiny momentary switches, will probably burn out but is the perfect match for the rubber nub from the buttons on the remote...

searched big lots and dollar store for a hot glue gun. neither had one. ill splurge and get one from target or wally-world tomorrow (have i mentioned i hate being laid off)

then tear apart an old 510 battery for a connector

 

[WillyB]

sourced wire and a button from a daewoo dvd player from like 01. actually got 12 of them buttons, a bunch of female rca connections and another pot... and tons of wire. not sure what else ill salvage but yeah, tiny momentary switches, will probably burn out but is the perfect match for the rubber nub from the buttons on the remote...

searched big lots and dollar store for a hot glue gun. neither had one. ill splurge and get one from target or wally-world tomorrow (have i mentioned i hate being laid off)

Hot glue is pretty worthless for modding, but if you feel the need to just tack something a glue stick and a lighter work fine.

You realize that neither the buttons nor the trimmer/pot you salvaged can handle any real current.

 

[NicksVap3]

pcb cut down, salvaged battery links

momentary switch and button

fire button location, going to cover the rest with some sort of film or vinyl

the pot/rheostat (not sure the difference)

need connector and some hot glue to hold the button and pot in place... and maybe a master switch. need to stay out of the kids toy boxes

 

[NicksVap3]

yeah i know. see how long it lasts. trying to keep my hands busy and all... i have a lot of old electronics, maybe when they go ill salvage some more parts and so on, by then maybe i work will pick back up and i can buy the real components i need

and i really just need to hold the switch and pot in place, this wont get heavy use im sure

 

[NicksVap3]

the fans the pot controlled each rated .13a, 4 of them. thats 6.24w. at 5.2v with a 3 ohm atty is 9.01w. maybe the pot was controlling something else. plus im sure the switch will go first, acting as a fuse of such... again could be wrong again, always am. im sure it will go but til then, free VV

 

[NicksVap3]

hot glue held the button and switch real nice. nice clicky... took an ego connector and wired it in to test, and the pot i think is shorting or something. hook an atty up and nothing, take it off and 5.24v. fail #2 at a mod of salvaged household items. shoulda listened but had to try...

 

[WillyB]

Why don't you just pull off the 5V rail?

Then use one of these with a simple on/off switch,

3-Amp Barrel Diodes - RadioShack.com

Basically when OFF the current runs through the diode (dropping your voltage), when ON you'll get full current (path of least resistance).

Not exactly VV but you'll have either ~4.3 or 5V. More useful than a single volt device.

Actual reostats that can handle high current are quite expensive.

 

[NicksVap3]

i had found some that will fit in the 3.5" bay and under $10
Potentiometers: Rheostats - 0.5 Ohm to 19.9 Ohm
but strapped for cash... trial and error... find something eventually... maybe

 

[WillyB]

i had found some that will fit in the 3.5" bay and under $10

The under $10 were 1.44A and 0.91A..........

 

[NicksVap3]

well the pot wouldnt go, so removed it. had the hole i bored for the pot there, so put an atty connector. test was a 808 carto, and some very loved cashcap
sorry bout the poor quality, not really sure how to use my girls camera

 

[NicksVap3]

so still tinkering around with this. i wanted to salvage more from the electronics i ripped apart, and get practice soldering smaller components. i got a .8 ohm resistor from the DVD player. and im still getting 7.6v to the connector. it feels a little bit cooler but the multimeter is saying differant.

ps: the lil momentary switch is still kicking. it may not be rated, but its small, has a very nice clickie, and its small... so ill use it again, maybe with a mosfet when it comes to it, im sure i can salvage one out of something

 

[NicksVap3]

knew this thing was cooler. 5.74v tested from +bat to -atty connector. from +bat to -bat = 7.45v. 1.71v drop from an .8 ohm resistor with 2 10440s in series

 

[NicksVap3]

something for people to think about...

had an old 12v cordless drill with no batteries... variable speed... took it apart, salvaged the trigger and electronics, wired it to the 2 10440s... and pressure sensitive VV. i got too curious and took it apart to see how it worked and if i could make is smaller. it dont work no more but it was too big and required too much pressure to pull for an ecig mod.