Hallicrafters T-506 Late Production Set

[M3-SRT8]

Originally Posted by jr_tech

The isolation of the pins from ground described suggests two open circuits:

1. between pin 3 & 4 of V4, perhaps open heater, dirty pins, broken or poorly tensioned socket pins.

2. between pin 3 of V8 and pin 4 of V6, perhaps broken wire, cold solder joints.

It is also possible that your probe was not making good connection to these pins due to flux left after changing capacitors.

jr

I was very careful with the probe. No caps were replaced in that area (V4 - V6) because they're all ceramics.

I'll check the suggested areas later today.

Thanks.