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From: David Nebenzahl on 12 Mar 2010 00:38 To bring this little saga to a close, I built a little AC adapter for my Fuji Finepix digicam: brought in 5 volts from a little Samsung wall wart, put the regulator and an electrolytic cap in a film can on a little piece of perfboard, and brought the power out to a 2.5mm power mini jack. The long and short of it is, the camera doesn't work on this supply. It puts out 3.25 volts alright, even when plugged into the camera, but the camera just sits there and does nothing. My suspicion is that the power jack is just not quite the right size to make contact (or else there's something screwed up inside the camera that makes it not accept external power, which seems unlikely). So I'll probably bite the bullet and shell out a little $ to buy the AC adapter made for this camera (found one on the internets for about $12). The camera itself (bought for $1 at Oakland's White Elephant sale) works like a charm; just got the USB cable for it today ($4.75). -- You were wrong, and I'm man enough to admit it. - a Usenet "apology"
From: Phil Hobbs on 12 Mar 2010 10:23 On 3/12/2010 12:38 AM, David Nebenzahl wrote: > To bring this little saga to a close, I built a little AC adapter for my > Fuji Finepix digicam: brought in 5 volts from a little Samsung wall > wart, put the regulator and an electrolytic cap in a film can on a > little piece of perfboard, and brought the power out to a 2.5mm power > mini jack. > > The long and short of it is, the camera doesn't work on this supply. It > puts out 3.25 volts alright, even when plugged into the camera, but the > camera just sits there and does nothing. My suspicion is that the power > jack is just not quite the right size to make contact (or else there's > something screwed up inside the camera that makes it not accept external > power, which seems unlikely). > > So I'll probably bite the bullet and shell out a little $ to buy the AC > adapter made for this camera (found one on the internets for about $12). > > The camera itself (bought for $1 at Oakland's White Elephant sale) works > like a charm; just got the USB cable for it today ($4.75). > > Try cramming a little bit of aluminum foil inside the plug. That'll tell you if the diameter is the problem. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
From: David Nebenzahl on 12 Mar 2010 13:39 On 3/12/2010 7:23 AM Phil Hobbs spake thus: > On 3/12/2010 12:38 AM, David Nebenzahl wrote: > >> To bring this little saga to a close, I built a little AC adapter for my >> Fuji Finepix digicam: brought in 5 volts from a little Samsung wall >> wart, put the regulator and an electrolytic cap in a film can on a >> little piece of perfboard, and brought the power out to a 2.5mm power >> mini jack. >> >> The long and short of it is, the camera doesn't work on this supply. It >> puts out 3.25 volts alright, even when plugged into the camera, but the >> camera just sits there and does nothing. My suspicion is that the power >> jack is just not quite the right size to make contact (or else there's >> something screwed up inside the camera that makes it not accept external >> power, which seems unlikely). > > Try cramming a little bit of aluminum foil inside the plug. That'll > tell you if the diameter is the problem. Mmmm, don't think so. I can see inside the sleeve in the camera that there's a spring contact, and I can feel this being displaced when I push in the jack*. I think the problem is with the center contact not mating correctly. *Hard to say whether this should be called a jack or a plug. The package calls it a jack, even though it appears male and goes into a female hole in the camera. Maybe it's a jug, or a plack. - You were wrong, and I'm man enough to admit it. - a Usenet "apology"
From: William Sommerwerck on 12 Mar 2010 13:44 > Hard to say whether this should be called a jack or a plug. > The package calls it a jack, even though it appears male > and goes into a female hole in the camera. Maybe it's a jug, > or a plack. The usual term is "hermaphroditic connector". "Jug" suggests something female. "Plack" is better, but it's a homonym of two other words.
From: Phil Hobbs on 12 Mar 2010 16:17
On 3/12/2010 1:39 PM, David Nebenzahl wrote: > On 3/12/2010 7:23 AM Phil Hobbs spake thus: > >> On 3/12/2010 12:38 AM, David Nebenzahl wrote: > > >>> To bring this little saga to a close, I built a little AC adapter for my >>> Fuji Finepix digicam: brought in 5 volts from a little Samsung wall >>> wart, put the regulator and an electrolytic cap in a film can on a >>> little piece of perfboard, and brought the power out to a 2.5mm power >>> mini jack. >>> >>> The long and short of it is, the camera doesn't work on this supply. It >>> puts out 3.25 volts alright, even when plugged into the camera, but the >>> camera just sits there and does nothing. My suspicion is that the power >>> jack is just not quite the right size to make contact (or else there's >>> something screwed up inside the camera that makes it not accept external >>> power, which seems unlikely). >> >> Try cramming a little bit of aluminum foil inside the plug. That'll >> tell you if the diameter is the problem. > > Mmmm, don't think so. I can see inside the sleeve in the camera that > there's a spring contact, and I can feel this being displaced when I > push in the jack*. I think the problem is with the center contact not > mating correctly. > > *Hard to say whether this should be called a jack or a plug. The package > calls it a jack, even though it appears male and goes into a female hole > in the camera. Maybe it's a jug, or a plack. > > > - > You were wrong, and I'm man enough to admit it. > > - a Usenet "apology" Right, I mean inside the female contact (on the cord). Works great. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net |