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-   -   What are these and how do they work. (https://www.rcuniverse.com/forum/beginners-85/5978476-what-these-how-do-they-work.html)

Mr67Stang 06-12-2007 02:47 PM

What are these and how do they work.
 
1 Attachment(s)
A freind of mine got rid of all is R/C air stuff and these were in the mix. Neither of us know what they are or what they do. While we have some speculation I would like to see if anyone knows before I start tinkering with them.

MinnFlyer 06-12-2007 03:25 PM

RE: What are these and how do they work.
 
Looks like maybe some kind of sequencer?

-pkh- 06-12-2007 03:26 PM

RE: What are these and how do they work.
 
I'd guess that it's a mixer of some sort (e.g. elevon mixer). It appears to have some adjustments, probably for centering, reversing, mix type, etc. Unless someone can ID that PC board, you might just have to hook it up to a receiver and a couple servos and play around with it to see what it does...

MinnFlyer 06-12-2007 03:27 PM

RE: What are these and how do they work.
 

ORIGINAL: -pkh-

you might just have to hook it up to a receiver and a couple servos and play around with it to see what it does...
That's what I'd do

-pkh- 06-12-2007 03:32 PM

RE: What are these and how do they work.
 
It says "(C) 2001..." on the PC board... what's the name after that?

Mr67Stang 06-12-2007 03:41 PM

RE: What are these and how do they work.
 


ORIGINAL: -pkh-

It says "(C) 2001..." on the PC board... what's the name after that?
After the "(C) 2001" it has "PME" on it. I have hooked 2 servos to it and pluged them into elevator and rudder chanels and they worked just ast they would without this gadjet in the middle. Now I did not play with any of the switches or pots.

MinnFlyer 06-12-2007 03:48 PM

RE: What are these and how do they work.
 
Time to play with the switches and pots! :D

(Do the switches first)

Rodney 06-12-2007 04:08 PM

RE: What are these and how do they work.
 
Most probably a mixer to enable you to use the elevator and aileron inputs to get elevon action on the outputs.

bkdavy 06-12-2007 07:49 PM

RE: What are these and how do they work.
 
Might be a failsafe. IC Senses loss of input from the reciever and puts the control surface into a predetermined position.

Brad

bbbair 06-12-2007 08:05 PM

RE: What are these and how do they work.
 
These LMDs (Little Magic Devices) were popular a few years ago before computer radios were common.

Basically; they are a mixer to emulate flapperons and/or elevons.

Unless you really need them for a current model that you want to control with a 10 year old radio...I'd recommend that you scrap them.

Dave trimmer 06-12-2007 09:58 PM

RE: What are these and how do they work.
 
If you do scrap them (I don't know if you should or not) but I would save the leads.

rabraaten 06-12-2007 10:30 PM

RE: What are these and how do they work.
 
I don't know why anyone hasn't seen this already. Those are clearly bi-polar, reversing switcher semi-conductive, reactor thingy-ma-bobs (sorry for all the technical jargon). If I were you I'd make darn sure nobody from the government saw those. Actually it probably doesn't matter because they give off such a high level of radioactive isotopes that nearly everyone in the northern hemisphere has probably detected them already.....Turkish spy stuff is so passe.

Kaos Rulz 06-13-2007 06:44 AM

RE: What are these and how do they work.
 


ORIGINAL: rabraaten

I don't know why anyone hasn't seen this already. Those are clearly bi-polar, reversing switcher semi-conductive, reactor tshingy-ma-bob (sorry for all the technical jargon). If I were you I'd make darn sure nobody from the government saw those. Actually it probably doesn't matter because they give off such a high level of radioactive isotopes that nearly everyone in the northern hemisphere has probably detected them already.....Turkish spy stuff is so passe.
This is obviously the model II version as it incorporates negative jitter reversed polarity tank circuits. The negative and reversed polarity cancelles each other out, hence, no jitter. Pretty smart! :eek:

piper_chuck 06-13-2007 09:35 AM

RE: What are these and how do they work.
 


ORIGINAL: Mr67Stang



ORIGINAL: -pkh-

It says "(C) 2001..." on the PC board... what's the name after that?
After the "(C) 2001" it has "PME" on it...
Perhaps the PME stands for PrecisionMicroElectronics: http://www.pme-rc.com/ ?

flyinrog 06-13-2007 09:38 AM

RE: What are these and how do they work.
 


ORIGINAL: ED STEFAN



ORIGINAL: rabraaten

I don't know why anyone hasn't seen this already. Those are clearly bi-polar, reversing switcher semi-conductive, reactor tshingy-ma-bob (sorry for all the technical jargon). If I were you I'd make darn sure nobody from the government saw those. Actually it probably doesn't matter because they give off such a high level of radioactive isotopes that nearly everyone in the northern hemisphere has probably detected them already.....Turkish spy stuff is so passe.
This is obviously the model II version as it incorporates negative jitter reversed polarity tank circuits. The negative and reversed polarity cancelles each other out, hence, no jitter. Pretty smart! :eek:

Beginners Ha! any idiot can see they are clearly watchamacalits.........thingamabob indeed...isotopes, clever...Radiation-,eg, The energy released from the nucleus of an unstable atom as it decays...gamma radiation, my favorite,non particulate...Rog

-pkh- 06-13-2007 09:52 AM

RE: What are these and how do they work.
 


ORIGINAL: piper_chuck

Perhaps the PME stands for PrecisionMicroElectronics: http://www.pme-rc.com/ ?

Could be... but the pc boards shown in their catalog don't look anything like the one shown in this thread... maybe it's and older version of one of their products.

http://www.pme-rc.com/pdfiles/cat2001a.pdf

PrecisionMicroElectronics does have some cool stuff... I like the rocket engine ignition module for rocket powered gliders or RATO!


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