| Name | Coin Telephone No. 700 |
| Date | 1960-1982 |
| Manufacturer | Associated Automation |
| Usage | Supervised locations (pubs, boarding houses, etc) |
Use of the BPO Coin Telephone No. 700
| BPO 700 series (work in conjunction with ‘Coin & Fee Checking’ relay sets in the telephone exchange) The 7XX versions (Tele 705/725 and 735 plus the Box Coin Collecting 700) were what were known as ‘Pay on Answer’ telephones. There were no electronics in them ! They were not ‘stand alone units; but needed to work in conjunction with ‘Coin & Fee Checking’ relay sets in the telephone exchange. Thus any of the telephones bought on eBay or elsewhere will not work as a payphone unless you have the coin & fee checking relay sets and all the other exchange equipment. There were two telephones which looked identical – The Tele 705 (Later known as ‘Box, Coin Collecting 705’) had a Bellset 47 whilst the later ‘Box, Coin Telephone No 21’ could have either the Bellset 47 or Bellset 49A fitted inside. Neither had any electronics in them. See the Coin & Fee Checking circuit diagram but it is 6.84Meg ! This is the circuit diagram of the telephone but no electronics! The big difference was that numbers could be dialled without putting money in (unlike the A/B box) and money was only inserted when the called end answered and when time for the deposited coins coins ran out paytone pips ‘asked’ for more money! The BPO Coin Telephone No. 700 was the standard British coin-operated telephone introduced in the late 1950s, pairing the familiar No. 700 handset with an integrated AB coin system. Accepted pre-decimal British coins (typically 1d, 3d, 6d) Remained common through the 1960s Gradually phased out around decimalisation (1971) and replaced by newer payphone designs |
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