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Halfinator power supply

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Stenhousemuir View Drop Down
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    Posted: 01 June 2023 at 4:32pm
How goes it people? I've not logged in here for years.  I'm just moving house and dug my halfinator out of the attic (amp9-basic amp).

My battery is long dead I think, but I'm after a dc power supply just to run it in the garden. 

Would this suffice?


If so, I'd go for the 24v one yes? But what rampage? 1 or 2?

I cannot find the amp data on the amplifier spec sheet. 

If not have you any better links for a suitable power supply? 


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slaz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote slaz Quote  Post ReplyReply Direct Link To This Post Posted: 01 June 2023 at 8:07pm
Whats an "amp9-basic" ?

If you don't know anything about it - errrr ... how do you expect any of us lot to know ?
Take it to bits and post pics/etc. of the amplifier and we might be able to advise ....
REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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carlosdelondres View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carlosdelondres Quote  Post ReplyReply Direct Link To This Post Posted: 01 June 2023 at 10:02pm
You'll want something a bit beefier to run it, 2A @24V is only 50w, the amp 9 basic is 4x50w I think? so 3 or 4 amp 24v power supply would be ok, more might be better. Don't know what input voltage range is on amp 9 basic, but I think 27V max? So 19V is probably ok, so an old laptop power supply, if you have one lying around, would probably do the trick.



Edited by carlosdelondres - 01 June 2023 at 10:14pm
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Stenhousemuir View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stenhousemuir Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2023 at 12:29am
Here is the spec sheet for the amp

https://drive.google.com/file/d/15ymIv5sr-xXGHFxbs6wVeGrgPXRL4--i/view?usp=drivesdk

Apologies to everyone, I'm useless at electronics, I managed to buold the halfinator but the battery I was running with it never maximised it's potential, don't want to make the same mistake again


Edited by Stenhousemuir - 02 June 2023 at 12:31am
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slaz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote slaz Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2023 at 10:19am
Originally posted by Stenhousemuir Stenhousemuir wrote:

Here is the spec sheet for the amp

https://drive.google.com/file/d/15ymIv5sr-xXGHFxbs6wVeGrgPXRL4--i/view?usp=drivesdk

Apologies to everyone, I'm useless at electronics, I managed to buold the halfinator but the battery I was running with it never maximised it's potential, don't want to make the same mistake again


That link is tiresome - asks for you permission.

What kind of battery is it ? Lead-acid (=heavy) or some variant of lithium ? The battery must have a label with its output voltage - surely ....

REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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carlosdelondres View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carlosdelondres Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2023 at 11:23am
19V input will be fine, so repurposed laptop PSU of 80-90w outputish would be a cheap option. Buy one off ebay if non lying about. the extra 5V from a 24v supply won't make that much difference...
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slaz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote slaz Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2023 at 8:12pm
Yup 19V laptop adapter should work well .... go for a higher current rating though like at least 3.5-4A ... only snag I can see is if the amplifier is set to run at lower voltage like 12V, you might need to watch it a bit wrt thermal behaviour - doubt it'll be a problem though.
If you have a dead lead-acid battery in there - get rid - its pure dead weight, but makes a decent door-stop.
REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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