02-19-2019, 07:11 PM
Hi Terry,
Thanks for responding to my post. Based on your information, I have made some progress, just no entirely the kind I want.
1) I still have not found R14 on the schematic, although as stated it is shown on the schematics I found.
2) It turns out that the shadow box coil is open, I put a 1K resistor across the two shadow box leads. This allowed the plate voltage to go to 353 volts.
3) The power switch coupled with the band control is not working properly. I bypassed the power switch, but I am not sure if the band switch is working. There is no information that I can find about this switch other than the part number.
The radio started to motorboat, which led me quickly finding a missing tube #44 shield on. I have the shield but no mounting socket. One of the socket rivets was pulled through. So I need a rube shield base and then have drill out both the 44 tube socket and the associated corner bracket in order gain access so that I can reinstall both the tube socket and shield base. Not what I wished for. With the tube shield held manually down, motor boating stopped but cannot receive any stations.
I need the following components and would appreciate suggestions as to where to get them.
a) Shadow box for the Philco 91 receiver
b) Shield base and associated shield for #44 tube
c) Grill cloth for the model 91 version 126 radio.
Thanks
Bruce
I hate to give up on this set as the cabinet is good and I had refinished it several years ago. I have a model 90, which is next on my list of projects.
Thanks for responding to my post. Based on your information, I have made some progress, just no entirely the kind I want.
1) I still have not found R14 on the schematic, although as stated it is shown on the schematics I found.
2) It turns out that the shadow box coil is open, I put a 1K resistor across the two shadow box leads. This allowed the plate voltage to go to 353 volts.
3) The power switch coupled with the band control is not working properly. I bypassed the power switch, but I am not sure if the band switch is working. There is no information that I can find about this switch other than the part number.
The radio started to motorboat, which led me quickly finding a missing tube #44 shield on. I have the shield but no mounting socket. One of the socket rivets was pulled through. So I need a rube shield base and then have drill out both the 44 tube socket and the associated corner bracket in order gain access so that I can reinstall both the tube socket and shield base. Not what I wished for. With the tube shield held manually down, motor boating stopped but cannot receive any stations.
I need the following components and would appreciate suggestions as to where to get them.
a) Shadow box for the Philco 91 receiver
b) Shield base and associated shield for #44 tube
c) Grill cloth for the model 91 version 126 radio.
Thanks
Bruce
I hate to give up on this set as the cabinet is good and I had refinished it several years ago. I have a model 90, which is next on my list of projects.