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ZX81 SECAM – SINCLAIR LETTER
A Sinclair customer, owner of a ZX81, decided to move to France and contacted Sinclair to learn how he could use the computer in that country.
It is important to note that, at the time, television systems were not compatible from one country to another, and they were not multi-system as they are now.
Here we have the response given by Sinclair customer support, that also gave the customer a new modulator (the component responsible for preparing Spectrum’s video signal for a television of the time) and instructions on what to change in the computer.