ECH3 Philips Miniwatt 1940's used/good
1 tube) ECH3 Philips Miniwatt 1940's used/good
tested on TV-7
The ECH3 is a triode hexode mixer for broadcast receiver use. The base is the continental side contact type. The oscillator triode has to supply 11 Volts peak to peak for the hexode mixer for correct operation.
A year later in 1940 the ECH3 was also available with the IO base and called the ECH33.
The classic envelope is 35 mm in diameter and, excluding the Ct8 base pins, is 88 mm tall.
Type ECH3 was first introduced 1939.