6 hours ago
I'm pretty sure that the dotted line I circled in an earlier post signifies that it is applicable to the 226 model which has two speakers. Although not annotated in any of the schematics I have found it would be consistent with the code 221 information I have found.
- As far as cleaning the volume pot. I see no hole or spaces in the case to spray any cleaning solution. There may be a small space between the bakelite and metal can sections where the tabs connect.
- A general question regarding the resistors. I've lifted one leg on many of them for measurement and find that they are all near or outside of the 20% tolerance value. Is it common practice to replace all those "dogbone" and fuse-shaped resistors? I see that many of them are listed as .5 watt with a few at 1 watt. If I do replace them I plan on using 1 watt.
- As mentioned earlier this is the oldest radio and only Philco I have ever worked on so I'm learning a lot. A post by MrFixr55 in another topic explains the operation of the multi-tap wirewound resistor. My reading explains that this is not a candohm but operates similarly. The one question I have about this is about the resistance measurements listed in the schematic. Is this reading from the terminal to the ground lug or between it and the nearest terminal?
Thanks much.
- As far as cleaning the volume pot. I see no hole or spaces in the case to spray any cleaning solution. There may be a small space between the bakelite and metal can sections where the tabs connect.
- A general question regarding the resistors. I've lifted one leg on many of them for measurement and find that they are all near or outside of the 20% tolerance value. Is it common practice to replace all those "dogbone" and fuse-shaped resistors? I see that many of them are listed as .5 watt with a few at 1 watt. If I do replace them I plan on using 1 watt.
- As mentioned earlier this is the oldest radio and only Philco I have ever worked on so I'm learning a lot. A post by MrFixr55 in another topic explains the operation of the multi-tap wirewound resistor. My reading explains that this is not a candohm but operates similarly. The one question I have about this is about the resistance measurements listed in the schematic. Is this reading from the terminal to the ground lug or between it and the nearest terminal?
Thanks much.
Nick
Yorktown VA
vwradios.com