My transformer which supplies my old ECM Compspeed controller has just failed and I must replace it. The problem is: does my Compspeed require an AC input (16V?) or a 12V DC input? I cannot tell from either component, both of which were bought years ago. The Compspeed is mounted on my home-made panel in such a way that I cannot turn it upside down to see if there is a data plate which could help. The image below shows the front face of the unit but it does not carry a model number or spec at all.
The transformer I think was from Danbury Electronics and appears to show a 16V output but without specifying AC or DC.
So, does my Compspeed include a rectifier such that 16V AC would be the correct input; or do I need a transformer with a rectified 12V DC output?
As a secondary point, can anyone suggest why the transformer might have failed?
Any help on this will be much appreciated.
Can anyone identify/specify my ECM Compspeed?
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Can anyone identify/specify my ECM Compspeed?
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Re: Can anyone identify/specify my ECM Compspeed?
My Compspeed Rambler Minors require 16V AC and I would suspect yours will be similar.
Re the transformer - check the obvious, such as fuse, terminations of wires in the plug etc. then if it still is a failure check whether you have a degree in electrical engineering.
If you find you haven't, chuck it out.
If you find you have, still chuck it out - it's not worth your time.
Ian
Re the transformer - check the obvious, such as fuse, terminations of wires in the plug etc. then if it still is a failure check whether you have a degree in electrical engineering.
If you find you haven't, chuck it out.
If you find you have, still chuck it out - it's not worth your time.
Ian
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Re: Can anyone identify/specify my ECM Compspeed?
From what Tony said, I'd expect 16v AC.
Use of AC input was the normal arrangement when the Compspeeds were made, and a 16v AC output transformer is a very standard device of the period.
It would be possible to trace the circuit on the Compspeed to see if a rectifier was the first component.
- Nigel
Use of AC input was the normal arrangement when the Compspeeds were made, and a 16v AC output transformer is a very standard device of the period.
It would be possible to trace the circuit on the Compspeed to see if a rectifier was the first component.
- Nigel
Nigel Cliffe - Blog of various mostly model making topics
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Re: Can anyone identify/specify my ECM Compspeed?
What you have is a Compspeed F.
On the heat shield that should be on the back of the conroller is:
regards
Alan
On the heat shield that should be on the back of the conroller is:
regards
Alan
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Re: Can anyone identify/specify my ECM Compspeed?
Hi. It is definately a compspeed as I still have one and occasionally gets used!!!!
I power mine with a Gaugemaster M1 cased transformer which has 2 outputs of 16v but only 1amp.
Hope that helps,
Nick.
I power mine with a Gaugemaster M1 cased transformer which has 2 outputs of 16v but only 1amp.
Hope that helps,
Nick.
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Re: Can anyone identify/specify my ECM Compspeed?
Thanks everyone for your quick responses; problem solved I think!
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Re: Can anyone identify/specify my ECM Compspeed?
16 volts or 14 - 18 volts.
What's a Voldemort between friends on Hogwort Railways?
(Sorry!)
Ian
What's a Voldemort between friends on Hogwort Railways?
(Sorry!)
Ian
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