I wonder if anyone can help. Looking for a replacement DC barrel plug to fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm 2.1mm" according to wikidev which has gone offline at the mo.


Note The BT Homehub 5B has a different sort of plug.

CPC plugs are only 2.1mm x 5.5mm.

https://cpc.farnell.com/unbranded/77...-sr/dp/CN05724

Owain

Wrote in message:
I wonder if anyone can help. Looking for a replacement DC barrel plug to fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm 2.1mm" according to wikidev which has gone offline at the mo.


Note The BT Homehub 5B has a different sort of plug.

CPC plugs are only 2.1mm x 5.5mm.

https://cpc.farnell.com/unbranded/77...-sr/dp/CN05724

Owain



Is that 0.5mm crucial?
--
Jimk


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On Tuesday, 31 December 2019 18:20:48 UTC, JimK wrote:
I believe the plug is a "Type B 6mm 2.1mm" according to wikidev
which has gone offline at the mo.
CPC plugs are only 2.1mm x 5.5mm.
Is that 0.5mm crucial?

I don't know, but by the time I've bought ten of them and paid postage they turn out quite expensive if unsuitable.

Owain

Jimk wrote:

Is that 0.5mm crucial?

Often it is, you either end up with a plug that is too tight to fit, or
too loose to make proper contact ...

Andy Burns Wrote in message:
Jimk wrote:

Is that 0.5mm crucial?

Often it is, you either end up with a plug that is too tight to fit, or
too loose to make proper contact ...


Time for some proper DIY !

D i m or Tabbytroll 'll fixit....
--
Jimk


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

There some odd ones about. I never did find one to fit an old Sony portable
CD player, it was very small.

I don't like these barrel plugs, the one on my tv even in standby starts to
cause hash on the hi if when it gets a bit tarnished.
Brian

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This newsgroup posting comes to you directly from...
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Blind user, so no pictures please
Note this Signature is meaningless.!
wrote in message
...
I wonder if anyone can help. Looking for a replacement DC barrel plug to
fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm
2.1mm" according to wikidev which has gone offline at the mo.


Note The BT Homehub 5B has a different sort of plug.

CPC plugs are only 2.1mm x 5.5mm.

https://cpc.farnell.com/unbranded/77...-sr/dp/CN05724

Owain

or that when its twisted it goes intermittent.
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Andy Burns" wrote in message
...
Jimk wrote:

Is that 0.5mm crucial?

Often it is, you either end up with a plug that is too tight to fit, or
too loose to make proper contact ...

On 31/12/19 18:13, wrote:
I wonder if anyone can help. Looking for a replacement DC barrel plug to fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm 2.1mm" according to wikidev which has gone offline at the mo.


Note The BT Homehub 5B has a different sort of plug.

CPC plugs are only 2.1mm x 5.5mm.

https://cpc.farnell.com/unbranded/77...-sr/dp/CN05724

Owain

I bought one of these:

https://tinyurl.com/urnxa2z

At least it tells you what size you're looking for.

Another Dave
--
Change nospam to techie

In article ,
wrote:
I wonder if anyone can help. Looking for a replacement DC barrel plug to
fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm
2.1mm" according to wikidev which has gone offline at the mo.


Note The BT Homehub 5B has a different sort of plug.

CPC plugs are only 2.1mm x 5.5mm.

https://cpc.farnell.com/unbranded/77...-sr/dp/CN05724

Owain

Ebay.

--
He who laughs last, thinks slowest*

Dave Plowman London SW
To e-mail, change noise into sound.

On Wednesday, 1 January 2020 12:40:59 UTC, Dave Plowman (News) wrote:
I wonder if anyone can help. Looking for a replacement DC barrel plug to
fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm
2.1mm" according to wikidev which has gone offline at the mo.
Ebay.

Very probably, but I haven't managed to find one.

Owain

In article ,
wrote:
On Wednesday, 1 January 2020 12:40:59 UTC, Dave Plowman (News) wrote:
I wonder if anyone can help. Looking for a replacement DC barrel plug to
fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm
2.1mm" according to wikidev which has gone offline at the mo.
Ebay.

Very probably, but I haven't managed to find one.

Search DC power plug. Are you sure it is 6mm? Common is 5.5mm

--
*I'm reading a book about anti-gravity. I just can't put it down.*

Dave Plowman London SW
To e-mail, change noise into sound.

On 31/12/2019 18:13, wrote:
I wonder if anyone can help. Looking for a replacement DC barrel plug to fit a BT Homehub 5A power supply. I believe the plug is a "Type B 6mm 2.1mm" according to wikidev which has gone offline at the mo.

Homehubs come up every month or 3 on Freecycle here so I'll keep an eye
open for one if you can wait that long. (I've picked up Homehubs and a
Smarthub that way but they're all installed elsewhere as access points
so I can't measure their barrels.)


--
Robin
reply-to address is (intended to be) valid

On Wednesday, 1 January 2020 15:35:57 UTC, Robin wrote:
Homehubs come up every month or 3 on Freecycle here so I'll keep an eye
open for one if you can wait that long. (I've picked up Homehubs and a
Smarthub that way but they're all installed elsewhere as access points
so I can't measure their barrels.)

Thank you. I'm in the unfortunate position (thanks to slightly inattentive ebaying) of having a Homehub 5A with a Homehub 5B power supply.

Owain

On Wednesday, 1 January 2020 13:57:13 UTC, Dave Plowman (News) wrote:
Search DC power plug. Are you sure it is 6mm? Common is 5.5mm

Yes ... this page

https://myvolts.co.uk/product.php/10...r_power_supply

says that 5.5mm is OK for Type A.

Actually I've just compared the two. i can't tell the difference in the outer diameter between 4.4 and 6mm, but the inner hole is much thinner on the 5B supply and I think the pin is larger on the 5A. Hence (AFAICS) a 5A supply can be used on a 5B hub, but not the other way around.

The hole on a 5A supply looks larger than 2.1mm.

Owain

On 01/01/2020 15:47, wrote:
On Wednesday, 1 January 2020 15:35:57 UTC, Robin wrote:
Homehubs come up every month or 3 on Freecycle here so I'll keep an eye
open for one if you can wait that long. (I've picked up Homehubs and a
Smarthub that way but they're all installed elsewhere as access points
so I can't measure their barrels.)

Thank you. I'm in the unfortunate position (thanks to slightly inattentive ebaying) of having a Homehub 5A with a Homehub 5B power supply.


I'll take it I shouldn't confine my search to a Homehub Type B with a
Type A PSU



--
Robin
reply-to address is (intended to be) valid

On Wednesday, 1 January 2020 16:16:19 UTC, Robin wrote:
I'll take it I shouldn't confine my search to a Homehub Type B with a
Type A PSU

Noooo ... The Homehub Type B can't be OpenWRT'd

Owain

wrote:

Looking for a replacement DC barrel plug to fit a BT Homehub 5A power
supply. I believe the plug is a "Type B 6mm 2.1mm"

Measuring the external and internal diameter of my original BT HH5a
plug, it's 5.5mm x 3 mm (not sure if the internal part of the barrel is
actually a cone shape, as the central pin on the socket is less than
3mm, though difficult to actually measure.

On Thu, 2 Jan 2020 09:45:30 +0000, Andy Burns
wrote:


wrote:

Looking for a replacement DC barrel plug to fit a BT Homehub 5A power
supply. I believe the plug is a "Type B 6mm 2.1mm"

Measuring the external and internal diameter of my original BT HH5a
plug, it's 5.5mm x 3 mm (not sure if the internal part of the barrel is
actually a cone shape, as the central pin on the socket is less than
3mm, though difficult to actually measure.

I thought they (internally) were cylindrical but with some sort of
sprung element to help make a good contact? That could be a single
spring 'finger' or a split inward sprung tube or a 'fork' (inside the
tip connector)?

The thought being that if both inner and outer part of the plug /
socket assembly were accurately machined / made and had at best a
light sliding fit on both parts (outer plug barrel in socket, pin
inside plug sleeve), the chances are a little bit of wear would mean a
tiny gap between the pin and plug sleeve and hence no contact?

I know the chassis sockets often have a spring loaded contact
(/switch) on one side and I guess that could make contact with the
plug barrel whilst pushing the sleeve onto the pin, but what about
in-line sockets?

Cheers, T i m


https://en.wikipedia.org/wiki/Coaxial_power_connector

On Tue, 31 Dec 2019 19:30:12 +0000, Andy Burns
wrote:

Jimk wrote:

Is that 0.5mm crucial?

Often it is, you either end up with a plug that is too tight to fit, or
too loose to make proper contact ...

Correct use of the word 'loose' :-)

Andy Burns wrote:

wrote:

Looking for a replacement DC barrel plug to fit a BT Homehub 5A power
supply. I believe the plug is a "Type B 6mm 2.1mm"

Measuring the external and internal diameter of my original BT HH5a
plug, it's 5.5mm x 3 mm

I found a plug that is marked as 5.0x2.1 and it does *not* fit the HH5a,
due to the 2.1 being too narrow (the 5.0 is obviously too narrow as
well, but that would just lead to a loose fit, rather than not fitting
at all).

T i m wrote:

Andy Burns wrote:

wrote:

Looking for a replacement DC barrel plug to fit a BT Homehub 5A power
supply. I believe the plug is a "Type B 6mm 2.1mm"

Measuring the external and internal diameter of my original BT HH5a
plug, it's 5.5mm x 3 mm (not sure if the internal part of the barrel is
actually a cone shape

I thought they (internally) were cylindrical but with some sort of
sprung element to help make a good contact?

someone says the old maplin L06BR with exchangeable tips included one
that fitted HH5a, which looks like it must have been the 5.5x2.5mm tip.

Jimk wrote:

Andy Burns wrote:

too loose to make proper contact ...

Time for some proper DIY !

A wrap of silver foil-paper from a fag packet?

On Thu, 2 Jan 2020 11:05:28 +0000, Andy Burns
wrote:

T i m wrote:

Andy Burns wrote:

wrote:

Looking for a replacement DC barrel plug to fit a BT Homehub 5A power
supply. I believe the plug is a "Type B 6mm 2.1mm"

Measuring the external and internal diameter of my original BT HH5a
plug, it's 5.5mm x 3 mm (not sure if the internal part of the barrel is
actually a cone shape

I thought they (internally) were cylindrical but with some sort of
sprung element to help make a good contact?

someone says the old maplin L06BR with exchangeable tips included one
that fitted HH5a, which looks like it must have been the 5.5x2.5mm tip.

Erm, I was talking about these connectors in general Andy (from your
'not sure if the internal part of the barrel is actually a cone
shape)'.

Re actually finding a matching plug for an existing socket, I normally
get the digital calipers in there the best I can and see what is
likely to be a fit (as you mention elsewhere).

Cheers, T i m

On 01/01/2020 16:06, wrote:
On Wednesday, 1 January 2020 13:57:13 UTC, Dave Plowman (News) wrote:
Search DC power plug. Are you sure it is 6mm? Common is 5.5mm

Yes ... this page

https://myvolts.co.uk/product.php/10...r_power_supply

says that 5.5mm is OK for Type A.

Actually I've just compared the two. i can't tell the difference in the outer diameter between 4.4 and 6mm, but the inner hole is much thinner on the 5B supply and I think the pin is larger on the 5A. Hence (AFAICS) a 5A supply can be used on a 5B hub, but not the other way around.

The hole on a 5A supply looks larger than 2.1mm.


I visited a HH5 today. FWIW PSU was P/N 19118836, model no.
S018RM1200150, "for use with BT Home Hub 4 & 5 Type A"; my cheap
Workzone caliper gauge showed an external barrel diameter of 5.44mm; and
measured the diameter of a screwdriver which was a sloppy fit inside as
2.88mm.

--
Robin
reply-to address is (intended to be) valid

On Sunday, 5 January 2020 20:43:25 UTC, Robin wrote:
I visited a HH5 today. FWIW PSU was P/N 19118836, model no.
S018RM1200150, "for use with BT Home Hub 4 & 5 Type A"; my cheap
Workzone caliper gauge showed an external barrel diameter of 5.44mm; and
measured the diameter of a screwdriver which was a sloppy fit inside as
2.88mm.

Thank you. So I definately need a pin hole bigger than 2.1mm.

Owain

On 05/01/2020 20:56, wrote:
On Sunday, 5 January 2020 20:43:25 UTC, Robin wrote:
I visited a HH5 today. FWIW PSU was P/N 19118836, model no.
S018RM1200150, "for use with BT Home Hub 4 & 5 Type A"; my cheap
Workzone caliper gauge showed an external barrel diameter of 5.44mm; and
measured the diameter of a screwdriver which was a sloppy fit inside as
2.88mm.

Thank you. So I definately need a pin hole bigger than 2.1mm.


I'm not definite about anything much these days*. But (a) the inner hole
looks bigger than the hole in the PSU for a HH3 and (b) the /tip/ of a
3.5mm jack plug will enter it and I think they are usually 3mm. But I
can't say it doesn't narrow further in.


*quantum theory meets solipsism; or perhaps just grump old age


--
Robin
reply-to address is (intended to be) valid

wrote:
On Sunday, 5 January 2020 20:43:25 UTC, Robin wrote:
I visited a HH5 today. FWIW PSU was P/N 19118836, model no.
S018RM1200150, "for use with BT Home Hub 4 & 5 Type A"; my cheap
Workzone caliper gauge showed an external barrel diameter of 5.44mm; and
measured the diameter of a screwdriver which was a sloppy fit inside as
2.88mm.

Thank you. So I definately need a pin hole bigger than 2.1mm.

I know this is DIY and all, but have you thought about just buying the
appropriate PSU:
https://www.ebay.co.uk/itm/BT-home-h...A/401997917212
https://www.ebay.co.uk/itm/Genuine-B...y/163959541491
or less for a full HH5 (can't quite read the PSU writing - might be a type B):
https://www.ebay.co.uk/itm/BT-68343-...r/113919449125

You can cut the cable off if you want to power it from something other than
the mains.

Theo

wrote:

So I definately need a pin hole bigger than 2.1mm.

As I said the other day, a 2.1mm centre hole won't allow the plug into
the socket.

On Sunday, 5 January 2020 23:12:16 UTC, Theo wrote:
I know this is DIY and all, but have you thought about just buying the
appropriate PSU:

(a) That's what I intended to do but through inattention (and not realising 5A and 5B were different power plugs) have already bought an inappropriate PSU
(b) the 5B PSU is rated at 2000mA which gives me an additional 500mA to play with on the USB port once I have bypassed the internal USB power supply and fitted an additional 12 to 5V thingmy.

Owain

On 06/01/2020 08:08, wrote:
On Sunday, 5 January 2020 23:12:16 UTC, Theo wrote:
I know this is DIY and all, but have you thought about just buying the
appropriate PSU:

(a) That's what I intended to do but through inattention (and not realising 5A and 5B were different power plugs) have already bought an inappropriate PSU
(b) the 5B PSU is rated at 2000mA which gives me an additional 500mA to play with on the USB port once I have bypassed the internal USB power supply and fitted an additional 12 to 5V thingmy.


I've never opened up a HH but if you are going into the innards with
solder aforethought would it be practicable to get rid of the socket and
plug and connect your 5B PSU permanently?




--
Robin
reply-to address is (intended to be) valid

Robin wrote:

I've never opened up a HH but if you are going into the innards with
solder aforethought would it be practicable to get rid of the socket and
plug and connect your 5B PSU permanently?

While you're at it, bridge out the reset switch on the top of it that
you can't seem to avoid accidentally poking every time you move the thing.

On Monday, 6 January 2020 07:29:52 UTC, Andy Burns wrote:
wrote:

So I definately need a pin hole bigger than 2.1mm.

As I said the other day, a 2.1mm centre hole won't allow the plug into
the socket.

The next 'standard' is 2.5mm

https://www.rapidonline.com/truconne...on-leads-63536

I'd always though 2.1 was up to 3amps and the 2.5 for 5 amps.

On Monday, 6 January 2020 08:21:25 UTC, Robin wrote:
I've never opened up a HH but if you are going into the innards with
solder aforethought would it be practicable to get rid of the socket and
plug and connect your 5B PSU permanently?

That is my next cunning plan, but will make it harder to feed the power cable up any trunking or conduit as required.

Owain

On Monday, 6 January 2020 12:24:32 UTC, whisky-dave wrote:
The next 'standard' is 2.5mm
https://www.rapidonline.com/truconne...on-leads-63536
I'd always though 2.1 was up to 3amps and the 2.5 for 5 amps.

Thanks, I often forget Rapid exist.

If I get one of them, and it's not the right plug, I can cut and reverse the ends and solder one end into the HH5 and the other end to the PSU and still have a removable connector for portability.

Owain

On Monday, 6 January 2020 19:43:22 UTC, wrote:
On Monday, 6 January 2020 12:24:32 UTC, whisky-dave wrote:
The next 'standard' is 2.5mm
https://www.rapidonline.com/truconne...on-leads-63536
I'd always though 2.1 was up to 3amps and the 2.5 for 5 amps.

Thanks, I often forget Rapid exist.

If I get one of them, and it's not the right plug, I can cut and reverse the ends and solder one end into the HH5 and the other end to the PSU and still have a removable connector for portability.

I have a couple of adapters, there;s only one thing I found that that needed it
and that was the set of scales I bought.

https://www.rapidonline.com/truconne...daptor-85-2916

now discontinued, luckier I bought some spares.




Owain

replying to Andy Burns, Bubz wrote:
I just tried a 5.5x2.5 and the centre hole is definitely bigger than 2.5.

--
for full context, visit https://www.homeownershub.com/uk-diy...m-1400563-.htm