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Original GPO P.O BT part manufactured by A.P. Besson Ltd. These easy to fit microphones are fully tested and were developed by the GPO to overcome the noise/crackling issues that affected the early carbon type mics. As well as providing a crackle free conversation these mics offer very good speech quality to the listening party.

Any questions please ask.

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The price is for one rectifier only!

You will receive one of the five types of rectifier as shown in the picture... they are essentially all the same component.

Original GPO P.O BT part which is fitted to prevent acoustic shock/loud popping in your ear that can cause some temporary hearing loss. It is very important that your classic telephone is fitted with one of these if it is in use.

The rectifier is fitted between T1 and T2 on the 700 series telephone circuit board and usually between between T5 and T6 on a bakelite 332 series.

Any questions please ask.

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OUT OF STOCK

Ideal for terminating your existing bakelite telephone braided linecord to conventional linecord and plug.

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You will be sent one or more (depending on how many are purchased) of the ringers as shown in the picture.

Genuine GPO P.O BT 4000 Ohm ringer 59D original part that gives a lovely free flowing ringing sound rather that using a 3.3K resistor which gives an uneven sound.

This simply replaces the existing 2 x 500 Ohm ringer in your GPO 700 series telephone or bellset.

Tested as working.

Any questions please ask.

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Original GPO P.O BT part manufactured by Rathdown Industries Ltd
. These easy to fit microphones are fully tested and were developed by the GPO to overcome the noise/crackling issues that affected the early carbon type mics. As well as providing a crackle free conversation these mics offer very good speech quality to the listening party.

Any questions please ask.

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(+ postage of £0.00)

OUT OF STOCK

New 8" 200mm Concord Blue GPO curly handset cord made to exact GPO/BT spec .

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New 8" 200mm Elphant Grey (Brown) GPO curly handset cord made to exact GPO/BT spec .

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OUT OF STOCK

Quality filter that separates the PSTN and ADSL frequencies, having connections for telephone and router/modem RJ11 lead. Compatible with caller display and dect phones and PBX .

These filters are considered the standard and are rebranded and sold at a much higher price by other companies, Offering high stability and resistance to line fluctuations such as local electric storms which very often will render cheaper filters unusable.

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