Thanks,
Bill B
Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
Norm
:I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
:
:Thanks,
:
:Bill B
:
:Hi Bill
:
: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
:
: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
:
:Norm
:
::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
::
::Thanks,
::
::Bill B
::
Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
Norm
:Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
:Thanks,
:Bill B
:
::Hi Bill
::
:: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
::
:: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
::
::Norm
::
:::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
:::
:::Thanks,
:::
:::Bill B
:::
:Hi Bill
:
: Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
:
: Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
:
:Norm
:
::Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
::Thanks,
::Bill B
::
:::Hi Bill
:::
::: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
:::
::: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
:::
:::Norm
:::
::::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
::::
::::Thanks,
::::
::::Bill B
::::
Those are both good, voltage and resistance.. Here is how most radios are wired. B+ comes from a large pin on the 80, either #1 or #4. From there it will go to the field coil. The other side of the field will end up on pin #3 of your 42 tube. Does you field coil seem to be connected this way? (This is for a radio with field in positive side of the supply.)
Here is a circuit with field in positive side:
http://www.nostalgiaair.org/PagesByModel/716/M0014716.pdf
A field could also be in the negative side. Check the above first.
Norm
:
:Hi, Norm. The voltage on the 80 #1 pin is 380v. The resistance on the coil measures 1200 ohms. I think this is pointing to one of the missing wires. Thanks!
:Bill B.
:
::Hi Bill
::
:: Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
::
:: Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
::
::Norm
::
:::Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
:::Thanks,
:::Bill B
:::
::::Hi Bill
::::
:::: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
::::
:::: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
::::
::::Norm
::::
:::::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
:::::
:::::Thanks,
:::::
:::::Bill B
:::::
There should be an output transformer between pin #2 and #3 on your 42 tube. The output transformer will have two more wires going to your speaker voice coil. The field should not go to pin #2. Reasonable to have 8 mfd on pin #4 of your 80. Would expect another large cap on pin #3 of the 42. Also expect the field would be connected between pin #4 on the 80 & pin #3 on the 42.
Those 8 mf caps should be replaced. They dry out over time.
Norm
:
:Norm: Made an interesting discovery. I can trace one side of the coil going to #3 on the 42. That's good. The other side of the coil is going directly to #2 also on the 42. There is a terminal strip right next to the 42 socket that has a wire from #4 on the 80. Both solder joints appear to have been re-soldered several times. It looks that the wire that is going to #2 on the 42 should be re-connected to the terminal strip with the B+ voltage from the 80. The terminal connection is about a 1/2" away. Note: The terminal strip with the #4 wire from the 80 has an 8mfg cap going to ground, a resistor leading to a coil.(not the speaker), and a resistor going to the 76. Is there anything else I should look at before re-connecting the wire from the speaker coil away from the #2pin on the 42 to the terminal strip?Thanks,
:Bill B
::
:: Those are both good, voltage and resistance.. Here is how most radios are wired. B+ comes from a large pin on the 80, either #1 or #4. From there it will go to the field coil. The other side of the field will end up on pin #3 of your 42 tube. Does you field coil seem to be connected this way? (This is for a radio with field in positive side of the supply.)
::
:: Here is a circuit with field in positive side:
::
::http://www.nostalgiaair.org/PagesByModel/716/M0014716.pdf
::
:: A field could also be in the negative side. Check the above first.
::
::Norm
::
:::
:::Hi, Norm. The voltage on the 80 #1 pin is 380v. The resistance on the coil measures 1200 ohms. I think this is pointing to one of the missing wires. Thanks!
:::Bill B.
:::
::::Hi Bill
::::
:::: Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
::::
:::: Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
::::
::::Norm
::::
:::::Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
:::::Thanks,
:::::Bill B
:::::
::::::Hi Bill
::::::
:::::: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
::::::
:::::: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
::::::
::::::Norm
::::::
:::::::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
:::::::
:::::::Thanks,
:::::::
:::::::Bill B
:::::::
:Bill
:
: There should be an output transformer between pin #2 and #3 on your 42 tube. The output transformer will have two more wires going to your speaker voice coil. The field should not go to pin #2. Reasonable to have 8 mfd on pin #4 of your 80. Would expect another large cap on pin #3 of the 42. Also expect the field would be connected between pin #4 on the 80 & pin #3 on the 42.
:
: Those 8 mf caps should be replaced. They dry out over time.
:
:Norm
:
:
:
::
::Norm: Made an interesting discovery. I can trace one side of the coil going to #3 on the 42. That's good. The other side of the coil is going directly to #2 also on the 42. There is a terminal strip right next to the 42 socket that has a wire from #4 on the 80. Both solder joints appear to have been re-soldered several times. It looks that the wire that is going to #2 on the 42 should be re-connected to the terminal strip with the B+ voltage from the 80. The terminal connection is about a 1/2" away. Note: The terminal strip with the #4 wire from the 80 has an 8mfg cap going to ground, a resistor leading to a coil.(not the speaker), and a resistor going to the 76. Is there anything else I should look at before re-connecting the wire from the speaker coil away from the #2pin on the 42 to the terminal strip?Thanks,
::Bill B
:::
::: Those are both good, voltage and resistance.. Here is how most radios are wired. B+ comes from a large pin on the 80, either #1 or #4. From there it will go to the field coil. The other side of the field will end up on pin #3 of your 42 tube. Does you field coil seem to be connected this way? (This is for a radio with field in positive side of the supply.)
:::
::: Here is a circuit with field in positive side:
:::
:::http://www.nostalgiaair.org/PagesByModel/716/M0014716.pdf
:::
::: A field could also be in the negative side. Check the above first.
:::
:::Norm
:::
::::
::::Hi, Norm. The voltage on the 80 #1 pin is 380v. The resistance on the coil measures 1200 ohms. I think this is pointing to one of the missing wires. Thanks!
::::Bill B.
::::
:::::Hi Bill
:::::
::::: Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
:::::
::::: Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
:::::
:::::Norm
:::::
::::::Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
::::::Thanks,
::::::Bill B
::::::
:::::::Hi Bill
:::::::
::::::: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
:::::::
::::::: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
:::::::
:::::::Norm
:::::::
::::::::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
::::::::
::::::::Thanks,
::::::::
::::::::Bill B
::::::::
Someone has been messing with the radio. Center of the volume control should go to top of 75 tube through a capacitor. One side of control will ground. The other side has a radio signal. It shouldn't connect to the 42 tube.
You might have found a tone control? It could connect to the 42 tube.
Pin #5 of the 42 is cathode. It could have a 8 mf cap going to ground. This wouldn't be for hum reduction. The radio still needs a cap from pin #3 to ground.
Not sure why wiring has been changed but you need power on pin #3 of the 42 before anything will be heard. You could add a 1K @ 10 watt wire wound resistor from pin #4 of the 80 to get this voltage. Rewiring the speaker field will also work but I don't know why it was changed?
Might check the schematic for Philco 610 or 620. Wiring of 75 and 42 tubes should be similar.
Norm
:Norm, if you ever come to Flowery Branch, GA., please email me. I want to buy you a beer. I verified the output trans. and left the wires connected as they are. There is not a cap on #3 of the 42, but there is an 8mfg cap on pin# 5. Should I connect pin# 3 on the 42 with #4 on the 80 through the terminal strip where the wire from pin# 4 on the 80 connects with the other 8mfg cap? Or should it be a direct connection? At pin# 3 of the 42, there is presently a wire going over to the volume control. This connection has been re-soldered several times. Is this reasonable?
:Thanks,
:Bill B
:
:
::Bill
::
:: There should be an output transformer between pin #2 and #3 on your 42 tube. The output transformer will have two more wires going to your speaker voice coil. The field should not go to pin #2. Reasonable to have 8 mfd on pin #4 of your 80. Would expect another large cap on pin #3 of the 42. Also expect the field would be connected between pin #4 on the 80 & pin #3 on the 42.
::
:: Those 8 mf caps should be replaced. They dry out over time.
::
::Norm
::
::
::
:::
:::Norm: Made an interesting discovery. I can trace one side of the coil going to #3 on the 42. That's good. The other side of the coil is going directly to #2 also on the 42. There is a terminal strip right next to the 42 socket that has a wire from #4 on the 80. Both solder joints appear to have been re-soldered several times. It looks that the wire that is going to #2 on the 42 should be re-connected to the terminal strip with the B+ voltage from the 80. The terminal connection is about a 1/2" away. Note: The terminal strip with the #4 wire from the 80 has an 8mfg cap going to ground, a resistor leading to a coil.(not the speaker), and a resistor going to the 76. Is there anything else I should look at before re-connecting the wire from the speaker coil away from the #2pin on the 42 to the terminal strip?Thanks,
:::Bill B
::::
:::: Those are both good, voltage and resistance.. Here is how most radios are wired. B+ comes from a large pin on the 80, either #1 or #4. From there it will go to the field coil. The other side of the field will end up on pin #3 of your 42 tube. Does you field coil seem to be connected this way? (This is for a radio with field in positive side of the supply.)
::::
:::: Here is a circuit with field in positive side:
::::
::::http://www.nostalgiaair.org/PagesByModel/716/M0014716.pdf
::::
:::: A field could also be in the negative side. Check the above first.
::::
::::Norm
::::
:::::
:::::Hi, Norm. The voltage on the 80 #1 pin is 380v. The resistance on the coil measures 1200 ohms. I think this is pointing to one of the missing wires. Thanks!
:::::Bill B.
:::::
::::::Hi Bill
::::::
:::::: Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
::::::
:::::: Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
::::::
::::::Norm
::::::
:::::::Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
:::::::Thanks,
:::::::Bill B
:::::::
::::::::Hi Bill
::::::::
:::::::: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
::::::::
:::::::: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
::::::::
::::::::Norm
::::::::
:::::::::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
:::::::::
:::::::::Thanks,
:::::::::
:::::::::Bill B
:::::::::
:Hi Bill
:
: Someone has been messing with the radio. Center of the volume control should go to top of 75 tube through a capacitor. One side of control will ground. The other side has a radio signal. It shouldn't connect to the 42 tube.
:
: You might have found a tone control? It could connect to the 42 tube.
:
: Pin #5 of the 42 is cathode. It could have a 8 mf cap going to ground. This wouldn't be for hum reduction. The radio still needs a cap from pin #3 to ground.
:
: Not sure why wiring has been changed but you need power on pin #3 of the 42 before anything will be heard. You could add a 1K @ 10 watt wire wound resistor from pin #4 of the 80 to get this voltage. Rewiring the speaker field will also work but I don't know why it was changed?
:
: Might check the schematic for Philco 610 or 620. Wiring of 75 and 42 tubes should be similar.
:
:Norm
:
::Norm, if you ever come to Flowery Branch, GA., please email me. I want to buy you a beer. I verified the output trans. and left the wires connected as they are. There is not a cap on #3 of the 42, but there is an 8mfg cap on pin# 5. Should I connect pin# 3 on the 42 with #4 on the 80 through the terminal strip where the wire from pin# 4 on the 80 connects with the other 8mfg cap? Or should it be a direct connection? At pin# 3 of the 42, there is presently a wire going over to the volume control. This connection has been re-soldered several times. Is this reasonable?
::Thanks,
::Bill B
::
::
:::Bill
:::
::: There should be an output transformer between pin #2 and #3 on your 42 tube. The output transformer will have two more wires going to your speaker voice coil. The field should not go to pin #2. Reasonable to have 8 mfd on pin #4 of your 80. Would expect another large cap on pin #3 of the 42. Also expect the field would be connected between pin #4 on the 80 & pin #3 on the 42.
:::
::: Those 8 mf caps should be replaced. They dry out over time.
:::
:::Norm
:::
:::
:::
::::
::::Norm: Made an interesting discovery. I can trace one side of the coil going to #3 on the 42. That's good. The other side of the coil is going directly to #2 also on the 42. There is a terminal strip right next to the 42 socket that has a wire from #4 on the 80. Both solder joints appear to have been re-soldered several times. It looks that the wire that is going to #2 on the 42 should be re-connected to the terminal strip with the B+ voltage from the 80. The terminal connection is about a 1/2" away. Note: The terminal strip with the #4 wire from the 80 has an 8mfg cap going to ground, a resistor leading to a coil.(not the speaker), and a resistor going to the 76. Is there anything else I should look at before re-connecting the wire from the speaker coil away from the #2pin on the 42 to the terminal strip?Thanks,
::::Bill B
:::::
::::: Those are both good, voltage and resistance.. Here is how most radios are wired. B+ comes from a large pin on the 80, either #1 or #4. From there it will go to the field coil. The other side of the field will end up on pin #3 of your 42 tube. Does you field coil seem to be connected this way? (This is for a radio with field in positive side of the supply.)
:::::
::::: Here is a circuit with field in positive side:
:::::
:::::http://www.nostalgiaair.org/PagesByModel/716/M0014716.pdf
:::::
::::: A field could also be in the negative side. Check the above first.
:::::
:::::Norm
:::::
::::::
::::::Hi, Norm. The voltage on the 80 #1 pin is 380v. The resistance on the coil measures 1200 ohms. I think this is pointing to one of the missing wires. Thanks!
::::::Bill B.
::::::
:::::::Hi Bill
:::::::
::::::: Measure voltage on pin #1 of your 80 to chassis. This is where B+ starts. If you have a good 80 tube and nothing open in the negative side of the power supply you will have around 300 volts, maybe higher?
:::::::
::::::: Your radio will have a speaker with large amound of wire toward the back. This is a field. It's used to filter hum from your power supply and supply a magnet for the speaker. Check resistance of the field coil. It could be 500-2000 ohms. If bad it will be open.
:::::::
:::::::Norm
:::::::
::::::::Hi, Norm. I have NO voltage on any of the pins. When I touch the cap on the 75, I hear a brief crackle in the speaker.
::::::::Thanks,
::::::::Bill B
::::::::
:::::::::Hi Bill
:::::::::
::::::::: Don't have your radio schematic but it shouldn't be too hard to fix. Tubes require voltages regardless who made the radio.
:::::::::
::::::::: Pin #2 & #3 on your 42 tube must be positive. This will usually be 200 or more. Pin #2 on the 75 should have voltage. It can be 50-100 volts. Touching top cap on your 75 should cause hum from the speaker. Do you hear this hum?
:::::::::
:::::::::Norm
:::::::::
::::::::::I have an unidentified console radio from probably the late 30's . The only identification is Model 6G, World Deluxe, chassis number 701112. I am looking for a schematic specifically for this chassis number. There is a diagram glued to the cabinet that says for" Model-6G Chassis 700,001 and up", but it appears to be maybe a basic diagram, and not specific for chassis 701112, or this radio. (I.E) The diagram reflects on a qty of two (2) 8mfg caps. There is actually a qty of four (4) present. The tube lineup is: 80, 6A7, 6D6, 75, 76, and 42. It came to me with cut, and missing wires. I replaced the caps, but get no sound. I have located a diagram here at Nostalgia Air that is like the one in the cabinet. It is a Zephyr Radio Co. Model-6G. I have also researched other diagrams with this tube layout, but have not located one with the (four) 8mfg caps. I have been working on this set off and on for about two years now,and sure would appreciate any advice.
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::::::::::Thanks,
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::::::::::Bill B
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