开云体育

It is a fact that on the TR7 a minimum of audio is heard when the AF control is turned fully down. On my SPR-4 the minimum level of audio is more than just acceptable, so I wonder if there is a remedy to the problem or a thing one has to live with. I lifted the leads to the AF control and checked the pot with an ohmmeter. 49 to 3909 ohms from the wiper to one leg, 3793 to 30 ohms to the other leg.

Peter OZ8CTH