The 706 telephone

The 706 telephone in the full range of colours available in the sixties

The first entirely new telephone of the 50s was the 700 series. In the sixties the GPO referred to this type of phone as a "Modern Telephone". It was not really available to customers until the early sixties. The original version illustrated right was the 706. The 706 was available in seven different colours - black, red, two-tone green, topaz yellow, concord blue, ivory and two-tone grey/brown.

In 1969 the GPO did a nationwide survey about customers' preferences for new colour schemes for phones. They discovered that the older generation was quite happy with the standard range - preferring blue or ivory. Whilst younger people wanted vivid bright colours such as tangerine and metallic gold. The GPO did little with the results of this survey and no new colours were introduced in the seventies.

They may have decided that the results of the survey were not very helpful. Although blue was chosen in the survey as a favourite colour from the existing range, it was actually the least popular colour chosen by customers. The reason might be the difficulty in changing a telephone once you had one. You had to pay the GPO to remove the old one and reinstall a new one. Most people then chose as neutral a colour as possible to fit in with any decoration scheme - usually ivory.

Red 706 telephone

In 1974 a third of the issued telephones were black, a third were ivory and the remainder one of the other colours.

The 706 dial

It is possible to find the 706 with an all figure dial, like the black one above. It was normally known then as the 706F - F referred to the figured dial. The version with the lettered dial was the 706L.

Some very early 706s were fitted with a metal dial, similar to that used on the 200 and 300 series phones. However, these are very rare. These phones also have domed feet instead of flat ones and straight cloth bound cords instead of the PVC curly cord.  It is of course very easy to fit a steel dial to a phone that did not originally have one.   I am not sure how old the phones would have to be to have steel dials, but ones as early as 1962 certainly had plastic dials.

Printed circuits

There are were two types of these phones issued. There was a design which used a printed circuit (PC) board and a conventionally wired version. The GPO did this, as the phones were made by several different manufacturers and some found the PC boards difficult to work with. So if you remove the case you will see very different looking electronics inside between two phones which look externally very similar.

The version without the PC board is sometimes referred to as the Mk1 and the version with is known as the Mk2. Both versions were made throughout the 60s.

706 telephone, showing carry handle 706 telephone, without carry handle

Carry handle?

Some of these phones have bar across the back of the phone underneath the receiver. You can use this to pick it up. Others have just two chrome plates and no bar. Both types are quite common.

The phone on the far left has the carry handle, the one on the near left has the two chrome plates and no carry handle.

Into the 70s

The design was given a mild face lift around 1967 when the dial was replaced by a transparent one and the 'ABC' style lettering was dropped as all figure numbering became more common. This version, known as the 746, continued into the 70s. Since all telephones were rented from the GPO it was common for them to be returned and re-issued. The 706 telephone was often given the transparent dial of the 746 to convert it to a 706F.Waste not want not! 

706 telephone base, showing the numbers

Collecting tips

How old is my 706?

You can find out when the telephone was made from the letters and numbers on the base. There will be something like:

706 L PX 63/2

The model number is '706', 'L' refers to a lettered dial. PX is the manufacturer. 63 is the year of manufacture, 2 is a production batch number.

Two tone phones

The 706 was only supplied in the colours shown above. Some trial versions may have been made in different colours, but these are exceptionally rare. Some of the colour combinations seen on eBay, e.g. red and white, have been made up by combining parts from several phones. This is fine, if you like the colour, but bear in mind it is not original.

Fading colours

One of the biggest problems with these phones is that the colour can fade. Look very carefully at yellow phones to make sure they are not faded ivory ones. The blue phone can also fade badly and look like dark green.

What to pay?

Prices for these phones vary from about £10 to up to £60. Working phones in excellent restored condition sell for the most money. However, it is perfectly possible to get 706 telephones in very good condition for less that £20. If you want to use one and are comfortable with rewiring it, then look for an unrestored example in good cosmetic condition and you will get a bargain. There are also a few rewired phones that go for this price.

Resources

For more detail on the 706 see this excellent page by Bob Freshwater - www.britishtelephones.com/t706.htm

This page has a large collection of pictures of 706 telephones showing many different variants - see www.telephonesuk.co.uk/phones_1960-80.htm

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George Gleason
Hi- For those of us in the States, or using GPO 700-series telephones behind Panasonic PABXs, the following may be useful: When the telephone 706 or 746 is fitted with a newer electronic microphone, the output from the mic can be excessively loud, and you'll hear objectionably high sidetone. The fix for this is simple: a 170 ohm resistor rated at 2 watts, connected in parallel across the microphone terminals, either at the mic itself or inside the phone. That reduces the mic's output to the same level as the carbon mics that were previously used, at which point the audio is perfect in both directions. Also to quiet the bell down to a level suitable for quiet indoor environments, instead of putting a 3K resistor in series with the bell, use a 16K resistor (yes, sixteen kilo ohms). On uni-coil bells, this may also require rotating the bell gongs slightly inward. On two-coil bells, adjust the distance between the clapper and the pole pieces (slightly loosen the two screws atop the bell coils to adjust the clapper distance). Otherwise, fit a bell on/off switch, and turn on the bell in an adjacent room only, so you can hear it all over the house. Added benefit of doing this: reduces REN to a level that enables connecting more phones to ring than your PABX or residential line would normally support. This particular fix works in the USA, I don't know that it would work on domestic lines in the UK. I'm a PABX eng. in the US, who's been using 700-series teles at home for about 30 years, and discovered these fixes via extensive testing. Having tried & used most types of telephones from around the world, the GPO 706 and 746 have superior audio and aesthetics to anything else made. The nearest American equivalent is Automatic Electric type 80 and 80-E, the former of which was the basis for Ericsson to design the 706 (a quick look at pictures of Automatic Electric 80 is unmistakable as to the design similarities). What's funny is, when I started using these, they were "obsolete" rather than "antiques," and people thought I was daft to stick with dial phones. Now they're expensive collectors' items. At least people still have good taste, though I never intended to become "trendy";-) Cheers- -George
david pagenhardt
let me hear from you. e mail me.
David Pagenhardt
I always wanted a British vintage 706 phone. Want to know price in USD for phone and shipping.
 
   
Retrowow - vintage, retro and social history

Mid Century ★ Facts & Figures ★ Collectibles

Retrowow - vintage, retro and social history

★ Mid Century ★ Facts & Figures ★ Collectibles ★