Here's why factory service manuals are useless.

Yes I saw matched vs unmatched. The important part would be to see numbers on the finished product

 

Ok. Let's see

 

Of course he's going to see certain numbers with the test jig he built. The problem is, that the numbers are going to change when installed in the radio, due to impedance of the different circuits. At least that's the way I understand it. Again, I think it's a lot of unnecessary time and money spent just to talk on the CB band. I really don't think anyone will notice a small amount of spurious emissions that a radio will put out. Even just by using a service manual alignment.

 

I’m trying to figure out what does this have to do with the factory service manual?

 

Well I don't think you can call that a factory tune on that radio. At least not a very good one. The finals and drivers were set too high, as was mentioned in the video. They were around 4.3 to 4.6 vdc, when the driver should be 3.75vdc and the finals 3.5vdc, as per the manual. Who knows what person may have been in that radio since DTB worked on it. The radio looks like it's had a hard life.

 

ok I guess you don’t understand the question, the factory manual has nothing to do with the replacement of the finals, the alignment instructions seem to miss something that is common knowledge in multiple device amplifiers. As night mentioned, overdriving the devices produce the problems, you can get by with mismatched devices as long as the drive current and voltage isn’t slamming them.

I didn’t say I didn’t like the way the radio talked, it was receive that was a problem for me.