Monthly Archives: May 2015

Switches

pbx1

 

There are 2 phones in my collection that have a so called PBX button on the shell. The Golden Glow has one on the back, the Persian Gray has it on the side. Sofar I have only seen these two positions. Which is in face a pity because I am left handed. ūüėČ

PBX stands for Private Branch eXchange, in fact a telephone switchboard. Today these PBX’s are fully automated (PABX), but in the Ericofon times these were operated by persons or semi automated.¬†Larger companies had a company PBX, with or without operators.

switchboard-operators

The button was used to signal the operator during a conversation. This was needed if you wanted to be connected to either an internal, external or international number, depending on the allowed actions in your case. This person would talk to you and arrange your request. These days, in an all communicating world, this can hardly be imagined anymore. The operator also handled the incoming calls, but the button does not play a role there. The picture is from Ericsson.

In automatic PBX’s one could push the PBX button during a conversation. The current conversation was put on hold and the person was given the possibility to consult a third person. Pushing the button again would resume the original conversation. If the third person would push the button then the call would be transferred and he would¬†get the original conversation.

pbx2

Looking at the¬†inside it is just a small switch, nothing more. Here’s a picture of the inside of the Gray model. The wires are finished on the chassis and make sure the signal is being forwarded to the operator when the phone is picked up and the button is pressed. The signal is nothing more than connecting the L2-wire with an earth wire. So an extra wire is needed to use it.

There are still some questions around the PBX buttons that I am not able to answer.

In which markets were these Ericofons available? It seems that most (or all) of the models with this PBX button are from Germany. Also my 2 phones come from there. So far no other countries of origin were spotted by me and some other collectors.

Who applied the buttons? Was this done as from the Ericsson factory, or done locally by the PBX supplier under strict instructions? The latter I personally doubt.

pbx3

Almost all PBX phones have the later wedge ear-piece. The flat ear-piece is hardly seen with this. And the old case I have never seen with this functionality except in case of the picture on the left which I found on the net. It could be a timing issue meaning that PBX’s became ‘popular’ in the years that the later model was introduced. The type of button on the old case slightly differs from the ones on the wedge shaped models.

If you have other information, or if you can confirm these assumptions, please let me know so we can get the story complete.

 

Update 12/09/15:¬†A new phone I got is also equiped with a switch. It is a Wedgwood used in The Netherlands. See the post on ‘Disco Hospital’ from September 2015. Since I had to sand the shell I had to remove the switch.

switch

Circles Of Mania

In my collection I do not have them, but sometimes you come accross weird looking dial faces.
Numbers in combination with text that does not really make sense and that you have never seen before. And that is confusing… ūüėČ

What is this?EricofonStickers

In the past, phones were produced for specific markets or countries. But if, for some reason one market had a shortage in Ericofons, some stock could be transferred from any other market.

And instead of changing the whole dial face, if at all available, to accomodate the market specific needs, a simple sticker was put over the dial face. In the picture you can see 2 different examples of these stickers that are applied under the finger wheel. I ran into them some time ago but I do not believe they are original, but later reproductions.

Not only the inner circle could be ‘stickered’, but also the outer circle. Even painting of the dial face was a possibility.

This way strange combinations are possible. I hope to find an original phone with a maniacal combination some time. Would be nice to illustrate this story.

Update 17/09/2015:

dial

This week I received a phone with an adjusted dialface. Not by the stickers above, but by nice homemade patching.

In the meantime I removed the stickers. These were placed to convert the North Electric dial to the Swedish standard.

Still looking for an original stickered dial face.

Update 30/10/2015:rebranddial

The original sticker made for this purpose showed up in a phone that I recently got. The details can be seen in the post ‘Various Hands’.

This dial face was originally a very common 1 to 0 dial face, at least when you live in Europe. It was rebranded to North Electric style to be sold in the USA. The phone was made in 1962 in Sweden and most likely exported to the USA in that era as well.

This dial face I will leave as is today.

Update 20/04/2017: 

This is an example of an outside sticker. The phone where I found this dial face on was a full Swedish Sandalwood phone, rebranded for US usage. The phone dates to 1968 so a few years later than the previous sticker.

Actually I bought 2 of them recently from an antiquestore in the US, just for the fun of the dial faces… …mania? Another post ‘Circles Of Mania II’ will be created.