Tandberg Solvsuper 10 - 70

[Geordie McBoyne]

On the workbench a Tandberg Slovsuper 10 radio receiver. Made in 1966, the circuit consists of a mixture of valves and transistors. The FM tuner head employs an ECC85 and the AM mixer-oscillator an ECH81. The ECH81 has no function on FM. An EF89 is in the dual channel IF amplifier along with a number of transistors. The audio power amplifier is transistorised using a pair of AD150 transistors. Complimentry driver transistors AC127 and AC128.

From the Radiomuseum: https://www.radiomuseum.org/r/tandberg_s...10_70.html

The fault is very low audio output.

Geordie McBoyne.