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Discussion Starter · #1 ·
Ok, this is driving me nuts....I am in need of a "9 volt battery eliminator/adapter" to power a set of LED eyes controlled by a color changing / fading circuit...here's my dilemma - When the unit is powered by a 9 Volt battery, it works fine...BUT, when I try different 9 volt adapters (i.e. each having a different milliamp / amp rating), I get nothing, not even a flicker....so my question is, obviously this circuit requires exactly a 9 Volt battery to power itself (and must have some protection as to not get overpowered or underpowered), therefore, can anyone tell me what the mAH / amp rating is of a standard alkaline 9 Volt battery, so I can size an AC/DC adapter to use in its place? It sucks to all "royal hehaw" to have to keep replacing batteries for something so trivial....Ahhhgg....:eek:
 

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Discussion Starter · #4 ·
Thanks

Thanks Spinman....got it....

Otaku, the polarity was correct, even tried reversing just in case...I agree with you though...I went through 9 volt DC adapters everywhere from 200mA through 1.5 mA, with no response whatsoever...as soon as I put a 9 Volt battery on it, the unit came on...LOL...hilarious....some explanation of the unit - it was purchased from Denny at TerrorByDesign many years ago, and the circuit board is only 1 square inch, and is covered in some sort of water proof yellow gunk that prevents me from determining what components are on the board, except for a function push button which causes the unit to fade / change colors of the LEDs attached via wires to the board (2 of them)...Can't explain it...I will say that if I use a weak 9 volt battery, the unit doesn't come on either...must have to be a fresh new battery, and I was trying to avoid having to change batteries, as this unit needs to stay on for hours and hours.....thanks for suggestions...!:D
 

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Discussion Starter · #6 ·
Good question...

Bilbo, not a silly question - the socket is soldered directly onto the board and the solder connections are covered with that yellow muck....I've tried connecting the bare-wires from the adapters directly to the socket (using alligator clips), and I've attached a 9volt connector from the adapters's bare wires to the socket also...reversed polarity, cleaned contacts, tried everything....it's like a spoiled rotten kid - will only do what it's told if it's given what it wants..and what it wants is a 9Volt battery.....LOL...:confused:
 

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Discussion Starter · #8 ·
Thanks...

Otaku, thanks but Terror By Design has been out of business for quite a few years, and the domain / company name has been purchased by DCProps who does not sell those units....The original Terror By Design was one of the first companies in the Haunt Industry to provide simple, yet powerful controllers for props, such as the Puppet Master, Puppet Master 3x and several PIC-based timers and audio solutions (very inexpensively)...I have personally purchased tons of their merchandise in the past, and Denny (the owner) had even offered to repair all of my timers I purchased from him that were destroyed by Hurricane Katrina....unfortunately, due to health reasons, he had to close his doors, and did not pass his designs onto anyone else....

Ahhh, but holy cow - Otaku, I think you may have nailed it, my friend - NONE of the power supplies were regulated!!!! That may be it (i.e. they were not delivering the steady voltage)!!!

THANKS to everyone - I'll try a regulated one and let you know how it goes!!!

:D:D:D:D:):):):)

Craig
 

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Discussion Starter · #15 ·
All

DC Adapters are being used...haven't measured voltages across points yet...cannot see any specs on the unit as it is covered in a yellow muck to keep it water proof...looks like it may be an 8 pin PIC on board, tho...It will run for hours maybe days with a 9 volt battery...my dilemma though, is that the unit is mounted on a 2 axis mechanism, and the motion tends to throw the battery about at times, plus the battery contributes a slight weight to the platform causing some timing issues...(it's a talking skull mounted on a 2 axis platform driven pneumatically, and the LED unit makes LED eyes change color and fade in/out)...and the LED unit does not have a power or shutoff button, thus draining the battery if I don't disconnect it. I will try to get some readings this weekend and let you guys know what I find...thanks for all the input!
 
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