Old GPO phone to BT plug?

Feb 15, 2007 11 Replies

Hello,



I've got an old rotary BT phone sitting around and I wanted to convert it to use a BT plug. I had one done ages ago and I know there's not much to it.



Anyone got a link or info on how to do this on a 70s/80s typical GPO phone (model 746)?



Thanks!



Have a look at

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or if it's not on that particular page it may be somewhere else on the site.

John.

In article , snipped-for-privacy@gmail.com writes

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hit on googling for GPO phone convert ;-)

Bob Freshwater's telephone file -

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On 15 Feb 2007 04:13:29 -0800, snipped-for-privacy@gmail.com mused:

Google is your friend.

How long is it going to be until someone takes a trip down the register office of Birth, Deaths and Marriages and asks ...

"I'd like to name my son, Google - as he will undoubtedly have many friends!"

-- Adrian C

There's a bit more to it than just changing the lead - there's a good chance it has a low impedance bell with a REN of several if parallel connected. So you need to either change the bell to a high impedance one or add a series resistor. And make internal alterations to the strapping in the phone.

Cheers all!

I did google first but to no avail. Might have used the wrong keywords.

Adrian C typed

I understand quite a few kids have been named Ikea...

Conceived on an Ikea bed, or in an Ikea store...?

Owain

Gives a new meaning to the phrase "shop soiled"

Owain

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