06-19-2008, 05:29 PM
I was given a model 620B cathedral as a gift. I was told the set had a recap recently and was in good working order. I had a look and found all paper and electrolytic caps had been replaced. I powered it up and it does function though very poorly. (using a long wire ant BTW) I'm no old radio pro but to me it looks like who ever did the recap was a newbie or a hack. At this point I checked all tubes using a HICKOK 533 and found all tubes check good.
By looking at the trimmers they had been played with recently, not a good sign if you ask me considering the poor performance. So an alignment check was in order. I found the dial scale set screw loose so I need to calibrate the dial scale to the tuning cap before proceeding with the alignment but can find no info on how to go about doing so. I downloaded the Rider's manual but find no info on how to go about this.
Any help appreciated.
By looking at the trimmers they had been played with recently, not a good sign if you ask me considering the poor performance. So an alignment check was in order. I found the dial scale set screw loose so I need to calibrate the dial scale to the tuning cap before proceeding with the alignment but can find no info on how to go about doing so. I downloaded the Rider's manual but find no info on how to go about this.
Any help appreciated.
Bill
It's not what you don't know that hurts you it's what you know that's not so.
