My router power supply died. I got a new one. I also got an adjustable voltage power supply with 34 interchangeable heads from eBay, to avoid delivery waiting times in case of future power losses.
Reading up on the subject, I was cautioned to ensure the polarity of a device's supply, indicating that these tend to vary.
On enquiry to the variable power supply provider I was told that "all
the interchangeable heads are positive" which I don't think is a very helpful answer.
There appears to be no facility to ensure the polarity of each head
without test equipment. This, nor change the polarity of the heads by
any means.
Is this because a negative inner is too rare to provide for?
I was cautioned to ensure the polarity of a
device's supply, indicating that these tend to vary.
On enquiry to the variable power supply provider I was told that "all
the interchangeable heads are positive"
On Sat, 7 Dec 2024 11:44:39 +0000, Andy Burns <usenet@andyburns.uk>
wrote:
Mike Halmarack wrote:
I was cautioned to ensure the polarity of a
device's supply, indicating that these tend to vary.
On enquiry to the variable power supply provider I was told that "all
the interchangeable heads are positive"
The generic wall-wart I have, is switchable 3/6/9/12v the heads have two
identical pins, so can be reversed for centre -ve or +ve
I wish.
My router power supply died. I got a new one. I also got an adjustable voltage power supply with 34 interchangeable heads from eBay, to avoid delivery waiting times in case of future power losses.
Reading up on the subject, I was cautioned to ensure the polarity of a device's supply, indicating that these tend to vary.
On enquiry to the variable power supply provider I was told that "all
the interchangeable heads are positive" which I don't think is a very helpful answer.
There appears to be no facility to ensure the polarity of each head
without test equipment. This, nor change the polarity of the heads by
any means.
Is this because a negative inner is too rare to provide for?
My router power supply died. I got a new one. I also got an adjustable voltage power supply with 34 interchangeable heads from eBay, to avoid delivery waiting times in case of future power losses.
On Mon, 09 Dec 2024 12:17:09 GMT, fred <not@for.mail> wrote:adjustable
Mike Halmarack <mikehalmarack@gmail.com> wrote in >>news:oi68ljthg25ijb1bp788n7tmtiq05fcfeh@4ax.com:
My router power supply died. I got a new one. I also got an
avoidvoltage power supply with 34 interchangeable heads from eBay, to
besidedelivery waiting times in case of future power losses.
I'd expect the polarity to be identified by a symbol such as this
the power input.
https://ibb.co/28ZWSF5
That's the perfect illustration Fred. My confusion is more to do with
the polarity of the output from the "Universal" power supply and the
ability to change this if necessary.
On Mon, 09 Dec 2024 12:17:09 GMT, fred <not@for.mail> wrote:
Mike Halmarack <mikehalmarack@gmail.com> wrote in
news:oi68ljthg25ijb1bp788n7tmtiq05fcfeh@4ax.com:
My router power supply died. I got a new one. I also got an adjustable
voltage power supply with 34 interchangeable heads from eBay, to avoid
delivery waiting times in case of future power losses.
I'd expect the polarity to be identified by a symbol such as this beside
the power input.
https://ibb.co/28ZWSF5
That's the perfect illustration Fred. My confusion is more to do with
the polarity of the output from the "Universal" power supply and the
ability to change this if necessary.
My router power supply died. I got a new one. I also got an adjustable voltage power supply with 34 interchangeable heads from eBay, to avoid delivery waiting times in case of future power losses.
Reading up on the subject, I was cautioned to ensure the polarity of a device's supply, indicating that these tend to vary.
On enquiry to the variable power supply provider I was told that "all
the interchangeable heads are positive" which I don't think is a very helpful answer.
There appears to be no facility to ensure the polarity of each head
without test equipment. This, nor change the polarity of the heads by
any means.
Is this because a negative inner is too rare to provide for?
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