Building my fourth drive case using an old Civil Defense Radiation Fallout Meter. Here are links to numbers one, two, and pics of number three can be seen at the end of #2.
Anyway, decided to document the construction of one of these as I build #4. This will be a USB 2.0/firewire combo case supporting pretty much any 3.5" hard drive out there. I'm running #2 with a 160GB drive and have had everything from a 6.4GB drive to a 200GB WD JB in that one. #1 has a 30GB Western Digital, it also has the slowest bridge board so it gets used much less. #3 is off to its new owner.
And here we go.
My starting point, a mid 60's Civil Defense Fallout Radiation Meter. This is a CDV-715 made by Landers, Frary, and Clark, but the same basic design was made by a few other makers. There are many variations. In front of the meter is a slim 80mm fan which will be run at 7 volts, the atomic fangrill, a blue LED, and the original yellow carry strap.
A shot of the guts as I start disassembly. The large silver cylinder is an ion chamber, PCB and battery holder on the right.
Inside of the lower hal showing the schematic. See the black square? it's a piece of foam that holds the battery in place. It will be reused later.
Ion chamber removed, I have a few of those laying around if anyone can think of a use.
Knobs have been removed, the electronics on this one differ from my original two so I have to lose the knobs for now to get everything apart.
All electronics removed, good view of the back of the guage.
The case marked for the fan as well as the drive mounting holes.
That's all I've got for now. Waiting on delivery of the bridge board for this one. Going to drill the holes and cut for the fan in the meantime.
Anyway, decided to document the construction of one of these as I build #4. This will be a USB 2.0/firewire combo case supporting pretty much any 3.5" hard drive out there. I'm running #2 with a 160GB drive and have had everything from a 6.4GB drive to a 200GB WD JB in that one. #1 has a 30GB Western Digital, it also has the slowest bridge board so it gets used much less. #3 is off to its new owner.
And here we go.
My starting point, a mid 60's Civil Defense Fallout Radiation Meter. This is a CDV-715 made by Landers, Frary, and Clark, but the same basic design was made by a few other makers. There are many variations. In front of the meter is a slim 80mm fan which will be run at 7 volts, the atomic fangrill, a blue LED, and the original yellow carry strap.
A shot of the guts as I start disassembly. The large silver cylinder is an ion chamber, PCB and battery holder on the right.
Inside of the lower hal showing the schematic. See the black square? it's a piece of foam that holds the battery in place. It will be reused later.
Ion chamber removed, I have a few of those laying around if anyone can think of a use.
Knobs have been removed, the electronics on this one differ from my original two so I have to lose the knobs for now to get everything apart.
All electronics removed, good view of the back of the guage.
The case marked for the fan as well as the drive mounting holes.
That's all I've got for now. Waiting on delivery of the bridge board for this one. Going to drill the holes and cut for the fan in the meantime.