| When you checked the alignment you say trimmers didn't make any difference - with a strong signal injected the trimmers should make a noticeable difference - find the one that makes the least amount of difference and carefully check that stage . When you checked the coils did you do an ohmmeter check ? Sometimes when the insulation on the windings deteriorates (Helped along greatly by lightning strikes on the antenna coil) the windings short internally - you'll still get continuity but the coil will show greatly reduced resistance with an ohmmeter check - you need a good meter for this as some of the ones I've checked have varied from 6 ohms or so to about 24 ohms if I remember correctly on the primary - - short your meter leads together and measure the resistance of your leads first before checking. Coils damaged in this way will let some of the signal through but the set will never tune up properly. |
G. Berg 
carl 