Hi,
I am replacing a Satchwell TLX 2259 (Dial operated) with a Sunvic TLX7501.
Am I right in the fact that Sunvic took over Satchwell as all forum searches seem to point to the Sunvic TLX 2259 ?.
The TLX 2259 has yellow - terminal 1, red - terminal 3 and blue terminal4.
The TLX 7501...