Hi everyone, any help would be appreciated. I am trying to restore this radio. I hace so far replaced all of the caps, and a few of the resistors that were out of specks. It plays fairly well untill I put the bottom of the chassis on then it stops playing altogether. You can feel the speaker trying to work, there just doesn't seem to be any signal. Ryders does not have any alignment instructions other than the freq. 175. Nothing is touching the bottom of the chassis when I put it on, I have made sure of this. It's as though something is blocking the signal once it's installed. I do not get a signal from my sig. generator hooked to the antenna but I do if I put it on the grid of the rf tube. Any ideas? Thanks ahead of time
Jerry Stanley

It sounds like the bottom cover acts as a shield. You may have an open antenna coil. Check its' resistance. Happy hunting

MRO

:Hi everyone, any help would be appreciated. I am trying to restore this radio. I hace so far replaced all of the caps, and a few of the resistors that were out of specks. It plays fairly well untill I put the bottom of the chassis on then it stops playing altogether. You can feel the speaker trying to work, there just doesn't seem to be any signal. Ryders does not have any alignment instructions other than the freq. 175. Nothing is touching the bottom of the chassis when I put it on, I have made sure of this. It's as though something is blocking the signal once it's installed. I do not get a signal from my sig. generator hooked to the antenna but I do if I put it on the grid of the rf tube. Any ideas? Thanks ahead of time
:Jerry Stanley

Jerry, Mark's suggestion is good.

Here's your schematic: http://www.nostalgiaair.org/PagesByModel/992/M0039992.pdf

If your set plays with your finger on the 24A RF gridcap, then there is something wrong between the antenna terminal and the grid. The antenna coils will be the usual suspects.

If you find one of the two antenna coils open, maybe it's a bad connection where the winding is soldered to the terminal - in which case, perhaps you can unwind a turn or so, and repair. There can't be anything too serious wrong.

:It sounds like the bottom cover acts as a shield. You may have an open antenna coil. Check its' resistance. Happy hunting
:
:MRO
:

Jerry,
My Majestic 90B has an antenna coil under the chassis, that is peaked with a knob out front. If your's is similar, then an open coil would suit the symptoms you described. Also, all the tuned circuits on my old TRF are enclosed with removable cans, and presumably those are still in place on yours.

marv

:Hi everyone, any help would be appreciated. I am trying to restore this radio. I hace so far replaced all of the caps, and a few of the resistors that were out of specks. It plays fairly well untill I put the bottom of the chassis on then it stops playing altogether. You can feel the speaker trying to work, there just doesn't seem to be any signal. Ryders does not have any alignment instructions other than the freq. 175. Nothing is touching the bottom of the chassis when I put it on, I have made sure of this. It's as though something is blocking the signal once it's installed. I do not get a signal from my sig. generator hooked to the antenna but I do if I put it on the grid of the rf tube. Any ideas? Thanks ahead of time
:Jerry Stanley