Hi Phil, I thought you just powered the escapement via negative and signal wire from the receiver?
Am very uneducated about all this...
Elmic Commander chattering...
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Re: Elmic Commander chattering...
It looks like a MacGregor MiniMac to me. I'll see if I can find mine tomorrow and compare.
IIRC the escapement connects to the battery positive, and the signal lead from the receiver shorts to ground on receipt of a signal.
The MiniMac was also intended to run off 3 cells, so running it on 6V would probably increase the noise output considerably!
IIRC the escapement connects to the battery positive, and the signal lead from the receiver shorts to ground on receipt of a signal.
The MiniMac was also intended to run off 3 cells, so running it on 6V would probably increase the noise output considerably!
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Re: Elmic Commander chattering...
The Elmic Commander instructions say the two wires on the left of the escapement, looking from the rear, should be Rx- and Rx output, so I have it wired on the bench thusly.
Stew, I have resized your pictures, //Tobe-
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Re: Elmic Commander chattering...
I know the 4.8v pack is still higher than recommended, but it doesn't seem to be chattering now, and my Ripmax Pathfinder seems to be getting it to click in and out when I press the tone button.
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Re: Elmic Commander chattering...
Unforch I dont have a doc for that particular receiver Stew, but I do have one so if it works I'll have a play & see
The MR doc says "all macgregor receivers are 9v" but I wouldnt believe that, the early ones were Terrytone based, 4.5v
We dont have a doc for this rx, you dont have one by chance do you?
Ta
Phil
The MR doc says "all macgregor receivers are 9v" but I wouldnt believe that, the early ones were Terrytone based, 4.5v
Hi Pete, defo a Macgregor, I have the identical rx here in front of me.Pchristy wrote: ↑24 Nov 2022, 19:53 It looks like a MacGregor MiniMac to me. I'll see if I can find mine tomorrow and compare.
IIRC the escapement connects to the battery positive, and the signal lead from the receiver shorts to ground on receipt of a signal.
The MiniMac was also intended to run off 3 cells, so running it on 6V would probably increase the noise output considerably!
We dont have a doc for this rx, you dont have one by chance do you?
Ta
Phil
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Re: Elmic Commander chattering...
Amazing. Thanks guys, great stuff. How these little devices work at all after what? 50+ years? Is quite beyond me. It's a lot of fun playing with them, and for me, half the fun is reading about the things and trying to understand the theory while having an example on the bench in front of me.
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Re: Elmic Commander chattering...
Ah, I was wrong! The escapement does connect between the Rx and -ve.
In my defence it must be 50 years since I last wired a MiniMac!
In my defence it must be 50 years since I last wired a MiniMac!
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Re: Elmic Commander chattering...
Yep but the important thing is that you remembered it wasnt 9v!!!
I've shopped these for perspective as best I can and put them all into a PDF, item M57 on the Archive page of singlechannel.co.uk
They're quite readable so will be ok until theres an opportunity to scan the originals
Weird that the spec page says 3v maximum but the diagram shows 4.5v ???
Edit: as Pete says, probably a typo for 3 cells maximum
Thanks Shaun
I've shopped these for perspective as best I can and put them all into a PDF, item M57 on the Archive page of singlechannel.co.uk
They're quite readable so will be ok until theres an opportunity to scan the originals
Weird that the spec page says 3v maximum but the diagram shows 4.5v ???
Edit: as Pete says, probably a typo for 3 cells maximum
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Re: Elmic Commander chattering...
Indeed!
And I suspect that reference to 3V max was a typo, and they meant 3 CELLS max!
And I suspect that reference to 3V max was a typo, and they meant 3 CELLS max!