03-08-2014, 11:16 PM
I'm glad I picked one of the easier Philco's to restore! 
I still am getting short wave on the broadcast band. And the weird thing is, changing the off/on switch from broadcast to police does not kill the broadcast band. It stays playing on the same station, pretty much the only one I get in loud and clear around 750 on the dial... WWCR in Nashville... a short wave religious station that has "four 100,000 Watt, state of the art, transmitters which serve the world on 10 different broadcasting channels", as their website touts. And I live 35 miles north of Milwaukee, WI.
But I only get the station with the #44 RF tube disconnected, and the grid cap from that tube on the #36 tube. I clip a gator wire from my external antenna to the antenna coil grid cap wire now on the #36 tube and the station comes in strong. Basically bypassing the RF coil (and the #44 tube) by connecting the grid cap wire from the antenna coil direct to the #36 tube.
I am totally at a loss as to why I'm getting shortwave where the broadcast band should be. Like I said we have a strong local station at 1470 on the dial only about 5 miles from my home that I should have no problem receiving.
Mondial: I checked out the terminal connections on my OSC coil based on the connections on your set and it was right where they should be. Would you happen to have the same info. for the RF coil, as that section seems to not be working correctly on my set?
I did notice a white colored wax like substance that (at some point, long before I got the set) had oozed out of the bottom of the 1st IF can, but not sure what's in there?
Also, I used two 250 pF's in the #26 bakelite block instead of the 110 pF's called for, because that's all I had here. I wouldn't think that little bit of difference should be causing the wrong frequency. I'm using the 700 pF along with the .09 mfd cap in the #8 bakelite block as the schematic calls for.
Any ideas for a balding guy who doesn't have more than 3 more strands of hair left to pull out on how to coax some local stations out of this "Philco that refuses to be repaired"?
I still am getting short wave on the broadcast band. And the weird thing is, changing the off/on switch from broadcast to police does not kill the broadcast band. It stays playing on the same station, pretty much the only one I get in loud and clear around 750 on the dial... WWCR in Nashville... a short wave religious station that has "four 100,000 Watt, state of the art, transmitters which serve the world on 10 different broadcasting channels", as their website touts. And I live 35 miles north of Milwaukee, WI.
But I only get the station with the #44 RF tube disconnected, and the grid cap from that tube on the #36 tube. I clip a gator wire from my external antenna to the antenna coil grid cap wire now on the #36 tube and the station comes in strong. Basically bypassing the RF coil (and the #44 tube) by connecting the grid cap wire from the antenna coil direct to the #36 tube.
I am totally at a loss as to why I'm getting shortwave where the broadcast band should be. Like I said we have a strong local station at 1470 on the dial only about 5 miles from my home that I should have no problem receiving.
Mondial: I checked out the terminal connections on my OSC coil based on the connections on your set and it was right where they should be. Would you happen to have the same info. for the RF coil, as that section seems to not be working correctly on my set?
I did notice a white colored wax like substance that (at some point, long before I got the set) had oozed out of the bottom of the 1st IF can, but not sure what's in there?
Also, I used two 250 pF's in the #26 bakelite block instead of the 110 pF's called for, because that's all I had here. I wouldn't think that little bit of difference should be causing the wrong frequency. I'm using the 700 pF along with the .09 mfd cap in the #8 bakelite block as the schematic calls for.
Any ideas for a balding guy who doesn't have more than 3 more strands of hair left to pull out on how to coax some local stations out of this "Philco that refuses to be repaired"?
Greg V.
West Bend, WI
Member WARCI.org
