If that's the resistor off of the rectifier tube 5 watts is enough. Even a lower rating (2watts) would be ok. Believe the value may be 68 ohms? It's hard to read but 68 ohms is a standard value.
Be sure to replace filter caps and check your 117Z6GT tube. These capacitors or tube can cause this resistor to open.
Norm
:The main resistor rated at 88 ohms in the 8G005 model Y type chassis is not identified for wattage rating. Is 5 watts enough?
:Roberval
Thanks for the information. My schematic is fairly clear and says R18 is 88 Ohms. I have combined two resistors in series to achieve that at 5 Watts. resistor gets hot quickly at power up. Capacitors are all new and I will double check the 117Z6GT. Probably that is the problem.
Can I put in a fuse to protect the resistor in case the tube becomes bad? If so what rating would you put on the fuse?
Robeval
:Hi Roberval
:
: If that's the resistor off of the rectifier tube 5 watts is enough. Even a lower rating (2watts) would be ok. Believe the value may be 68 ohms? It's hard to read but 68 ohms is a standard value.
:
: Be sure to replace filter caps and check your 117Z6GT tube. These capacitors or tube can cause this resistor to open.
:
:Norm
:
:
:
::The main resistor rated at 88 ohms in the 8G005 model Y type chassis is not identified for wattage rating. Is 5 watts enough?
::Roberval
Using a 1 amp fuse is a good idea.
The resistor will be warm but if it gets hot quickly something is shorted. This resistor is in series with B+ in your radio. Be sure electrolytic caps aren't reversed. One lead will be marked with + or -. A shorted 117Z6GT could also be the problem.
Norm
:Hi Norm,
:
:Thanks for the information. My schematic is fairly clear and says R18 is 88 Ohms. I have combined two resistors in series to achieve that at 5 Watts. resistor gets hot quickly at power up. Capacitors are all new and I will double check the 117Z6GT. Probably that is the problem.
:
:Can I put in a fuse to protect the resistor in case the tube becomes bad? If so what rating would you put on the fuse?
:
:Robeval
:
::Hi Roberval
::
:: If that's the resistor off of the rectifier tube 5 watts is enough. Even a lower rating (2watts) would be ok. Believe the value may be 68 ohms? It's hard to read but 68 ohms is a standard value.
::
:: Be sure to replace filter caps and check your 117Z6GT tube. These capacitors or tube can cause this resistor to open.
::
::Norm
::
::
::
:::The main resistor rated at 88 ohms in the 8G005 model Y type chassis is not identified for wattage rating. Is 5 watts enough?
:::Roberval