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