Hello All,
Someone worked on this radio before. This is a motorboater. I have checked and double checked that the capacitors are in correctly. The capacitor connecting the power supply negative to the chassis is good and connected correctly and I think I am experiencing Deja vu. I seem to remember having this problem with a radio similar to this one. There is a 35Z5 in the power supply, a 50L6, but the rest of the tubes start with a 7, not a 14 and there is a current limiting resistor riveted to the chassis so the 6 volt tubes can be used. If anyone has the schematic for this radio, it would help.
This is somewhat different from a 46-200.

Thanks,

Dave

Dave,
The Beitman schematic is different than the Rider schematic:
http://techpreservation.dyndns.org/schematics/47/47_Philco_46-200_116.djvu

Carl T

:Hello All,
: Someone worked on this radio before. This is a motorboater. I have checked and double checked that the capacitors are in correctly. The capacitor connecting the power supply negative to the chassis is good and connected correctly and I think I am experiencing Deja vu. I seem to remember having this problem with a radio similar to this one. There is a 35Z5 in the power supply, a 50L6, but the rest of the tubes start with a 7, not a 14 and there is a current limiting resistor riveted to the chassis so the 6 volt tubes can be used. If anyone has the schematic for this radio, it would help.
: This is somewhat different from a 46-200.
:
:Thanks,
:
:Dave
:

Carl,
That's it! I have the later model with the 1200 ohm resistor instead of the field coil. I the tube numbers are rubbed off the loktal tubes. So now I know what they are.
I'm wrong. I do not have motorboating. But I do have a problem that's making it difficult to align the tuner. I can either get the high end of the band loud or the low end of the band loud. But not both. When I try to adjust the first IF transformer to a position where it should work I get an awful lot of heterodyning noises as I tune through the band. This is mostly in the middle. Some of the stations sound like side band when that's going on. I'm not sure what's going on. Could this be caused by some problem in the 7A8 (converter) or "silver mica disease" in the IF transformer? I will find out. Maybe there's a problem with one of the mica capacitors?

Thanks,

Dave
:Dave,
:The Beitman schematic is different than the Rider schematic:
:http://techpreservation.dyndns.org/schematics/47/47_Philco_46-200_116.djvu
:
:Carl T
:
::Hello All,
:: Someone worked on this radio before. This is a motorboater. I have checked and double checked that the capacitors are in correctly. The capacitor connecting the power supply negative to the chassis is good and connected correctly and I think I am experiencing Deja vu. I seem to remember having this problem with a radio similar to this one. There is a 35Z5 in the power supply, a 50L6, but the rest of the tubes start with a 7, not a 14 and there is a current limiting resistor riveted to the chassis so the 6 volt tubes can be used. If anyone has the schematic for this radio, it would help.
:: This is somewhat different from a 46-200.
::
::Thanks,
::
::Dave
::
:

Hello All,
I just restored two more Philco 46-200s. One was the standard one with the electro-magnet speaker and one was the code 122 with the permanent magnet speaker and 3 electrolytic capacitors. There is a resistor instead of a field coil. Other than that they are very similar. How many versions of the 46-200 were there?

Thanks,

Dave
:Carl,
: That's it! I have the later model with the 1200 ohm resistor instead of the field coil. I the tube numbers are rubbed off the loktal tubes. So now I know what they are.
: I'm wrong. I do not have motorboating. But I do have a problem that's making it difficult to align the tuner. I can either get the high end of the band loud or the low end of the band loud. But not both. When I try to adjust the first IF transformer to a position where it should work I get an awful lot of heterodyning noises as I tune through the band. This is mostly in the middle. Some of the stations sound like side band when that's going on. I'm not sure what's going on. Could this be caused by some problem in the 7A8 (converter) or "silver mica disease" in the IF transformer? I will find out. Maybe there's a problem with one of the mica capacitors?
:
:Thanks,
:
:Dave
::Dave,
::The Beitman schematic is different than the Rider schematic:
::http://techpreservation.dyndns.org/schematics/47/47_Philco_46-200_116.djvu
::
::Carl T
::
:::Hello All,
::: Someone worked on this radio before. This is a motorboater. I have checked and double checked that the capacitors are in correctly. The capacitor connecting the power supply negative to the chassis is good and connected correctly and I think I am experiencing Deja vu. I seem to remember having this problem with a radio similar to this one. There is a 35Z5 in the power supply, a 50L6, but the rest of the tubes start with a 7, not a 14 and there is a current limiting resistor riveted to the chassis so the 6 volt tubes can be used. If anyone has the schematic for this radio, it would help.
::: This is somewhat different from a 46-200.
:::
:::Thanks,
:::
:::Dave
:::
::
:

:Hello All,
: I just restored two more Philco 46-200s. One was the standard one with the electro-magnet speaker and one was the code 122 with the permanent magnet speaker and 3 electrolytic capacitors. There is a resistor instead of a field coil. Other than that they are very similar. How many versions of the 46-200 were there?
:
:Thanks,
:
:Dave
::Carl,
:: That's it! I have the later model with the 1200 ohm resistor instead of the field coil. I the tube numbers are rubbed off the loktal tubes. So now I know what they are.
:: I'm wrong. I do not have motorboating. But I do have a problem that's making it difficult to align the tuner. I can either get the high end of the band loud or the low end of the band loud. But not both. When I try to adjust the first IF transformer to a position where it should work I get an awful lot of heterodyning noises as I tune through the band. This is mostly in the middle. Some of the stations sound like side band when that's going on. I'm not sure what's going on. Could this be caused by some problem in the 7A8 (converter) or "silver mica disease" in the IF transformer? I will find out. Maybe there's a problem with one of the mica capacitors?
::
::Thanks,
::
::Dave
:::Dave,
:::The Beitman schematic is different than the Rider schematic:
:::http://techpreservation.dyndns.org/schematics/47/47_Philco_46-200_116.djvu
:::
:::Carl T
:::
::::Hello All,
:::: Someone worked on this radio before. This is a motorboater. I have checked and double checked that the capacitors are in correctly. The capacitor connecting the power supply negative to the chassis is good and connected correctly and I think I am experiencing Deja vu. I seem to remember having this problem with a radio similar to this one. There is a 35Z5 in the power supply, a 50L6, but the rest of the tubes start with a 7, not a 14 and there is a current limiting resistor riveted to the chassis so the 6 volt tubes can be used. If anyone has the schematic for this radio, it would help.
:::: This is somewhat different from a 46-200.
::::
::::Thanks,
::::
::::Dave
::::
:::
::When aligning the IF transformers make sure the generator is accurate to get the correct IF. The whistling & motoroating is an ----AVC---- problem! I have two of these old PHILCO sets & found that the AVC filter cap. is TOO weak for the stronger signals. It's not the IF's that are bad, the stronger signal over powers the capacity. Check ALL of the parts by touching different places with two fingers. Sometimes different hand capacities will show up a difference. But be VERY,VERY careful of where you touch!!!! Always check the circuitry FIRST & make double sure you know WHERE you touch, because you are in a dasngerous area ESPECIALLY on those AC sets! 400 V. is not even 1 nano amp friendly! You want to be smart but don't let your eyeballs light up. This procerure I've used & it works. The sets I have are a 46-200 PHILCO & a T-902-124 PHILCO. I got oscillations on the high ends only, the low ends were fine. The reason is that the high end is usually more sensitive & the stations are stronger, especially close to stronger stations in larger cities. Also some PHILCO'S were very hard to adjust because PHILCO made their sets EXTREMELY sensitive. They had a lot of management problems (design areas), but they were one teriffic piece of receiver. The cabinets were WAY more costly than the actual chassis to build. There is an article on adjusting PHILCO superhets on the web site under PHILCO RESOURCES part. It describes how do things & what to watch for.
:
:

:Hello All,
: I just restored two more Philco 46-200s. One was the standard one with the electro-magnet speaker and one was the code 122 with the permanent magnet speaker and 3 electrolytic capacitors. There is a resistor instead of a field coil. Other than that they are very similar. How many versions of the 46-200 were there?
:
:Thanks,
:
:Dave
::Carl,
:: That's it! I have the later model with the 1200 ohm resistor instead of the field coil. I the tube numbers are rubbed off the loktal tubes. So now I know what they are.
:: I'm wrong. I do not have motorboating. But I do have a problem that's making it difficult to align the tuner. I can either get the high end of the band loud or the low end of the band loud. But not both. When I try to adjust the first IF transformer to a position where it should work I get an awful lot of heterodyning noises as I tune through the band. This is mostly in the middle. Some of the stations sound like side band when that's going on. I'm not sure what's going on. Could this be caused by some problem in the 7A8 (converter) or "silver mica disease" in the IF transformer? I will find out. Maybe there's a problem with one of the mica capacitors?
::
::Thanks,
::
::Dave
:::Dave,
:::The Beitman schematic is different than the Rider schematic:
:::http://techpreservation.dyndns.org/schematics/47/47_Philco_46-200_116.djvu
:::
:::Carl T
:::
::::Hello All,
:::: Someone worked on this radio before. This is a motorboater. I have checked and double checked that the capacitors are in correctly. The capacitor connecting the power supply negative to the chassis is good and connected correctly and I think I am experiencing Deja vu. I seem to remember having this problem with a radio similar to this one. There is a 35Z5 in the power supply, a 50L6, but the rest of the tubes start with a 7, not a 14 and there is a current limiting resistor riveted to the chassis so the 6 volt tubes can be used. If anyone has the schematic for this radio, it would help.
:::: This is somewhat different from a 46-200.
::::
::::Thanks,
::::
::::Dave
::::
:::
::When aligning the IF transformers make sure the generator is accurate to get the correct IF. The whistling & motoroating is an ----AVC---- problem! I have two of these old PHILCO sets & found that the AVC filter cap. is TOO weak for the stronger signals. It's not the IF's that are bad, the stronger signal over powers the capacity. Check ALL of the parts by touching different places with two fingers. Sometimes different hand capacities will show up a difference. But be VERY,VERY careful of where you touch!!!! Always check the circuitry FIRST & make double sure you know WHERE you touch, because you are in a dasngerous area ESPECIALLY on those AC sets! 400 V. is not even 1 nano amp friendly! You want to be smart but don't let your eyeballs light up. This procerure I've used & it works. The sets I have are a 46-200 PHILCO & a T-902-124 PHILCO. I got oscillations on the high ends only, the low ends were fine. The reason is that the high end is usually more sensitive & the stations are stronger, especially close to stronger stations in larger cities. Also some PHILCO'S were very hard to adjust because PHILCO made their sets EXTREMELY sensitive. They had a lot of management problems (design areas), but they were one teriffic piece of receiver. The cabinets were WAY more costly than the actual chassis to build. There is an article on adjusting PHILCO superhets on the web site under PHILCO RESOURCES part. It describes how do things & what to watch for.
:
: