[IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/CrosleyCabinet148.jpg[/IMG]
1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
Thanks, Bob
:
:1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
:
:2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
:Thanks, Bob
:
You can unwrap the paper covering of the field coil and verify the the flexible wire connection to the winding and replace and/or stabilize as necessary. Most any masking tape could be used to re-cover it Measure the DC resistance and compare with published documents. What is the nature of the grid cap wire with wire mesh. Is it like coax cable, where the mesh is closely spaced from the conductor or much larger in diameter?
marv
: [IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/SPKSwivels.jpg[/IMG]
:
:
::
::1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
::
::2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
::Thanks, Bob
::
The mesh or shielding is very tightly attached to the
cloth wire inside. About a half inch of each end are kind of soldered, I guess so they do not fray. They are not particularly wide in diameter like coax. They are closer in size to the cloth wire they enclose.
I found a product called Engineering Tubing Bender in Hobby Lobby that looked like it could pass for that spring-like shielding like I had seen in other sets. They come five to a pack and are about 4 1/4 inches long and look like springs with one slightly flared end. There are five different sizes in the set.
Bob
They were $3.17 for the set of five.
:Bob,
:You can unwrap the paper covering of the field coil and verify the the flexible wire connection to the winding and replace and/or stabilize as necessary. Most any masking tape could be used to re-cover it Measure the DC resistance and compare with published documents. What is the nature of the grid cap wire with wire mesh. Is it like coax cable, where the mesh is closely spaced from the conductor or much larger in diameter?
:
:marv
:
:: [IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/SPKSwivels.jpg[/IMG]
::
::
:::
:::1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
:::
:::2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
:::Thanks, Bob
:::
I have a few different sizes of minature teflon insulated coax, and don't think there would be a high voltage arc-over problem. The shield as well as the center conductors are silver plated. The smallest is about 1/16 inch OD, and the largest is about 1/8 inch OD. If interested, I can try to measure the inner conductor size/AWG, but don't think current carrying capacity would be a problem. If interested, I can mail specified lengths for your trial.
marv
:Marv,
:The mesh or shielding is very tightly attached to the
:cloth wire inside. About a half inch of each end are kind of soldered, I guess so they do not fray. They are not particularly wide in diameter like coax. They are closer in size to the cloth wire they enclose.
: I found a product called Engineering Tubing Bender in Hobby Lobby that looked like it could pass for that spring-like shielding like I had seen in other sets. They come five to a pack and are about 4 1/4 inches long and look like springs with one slightly flared end. There are five different sizes in the set.
:Bob
:They were $3.17 for the set of five.
:
:
:
:
::Bob,
::You can unwrap the paper covering of the field coil and verify the the flexible wire connection to the winding and replace and/or stabilize as necessary. Most any masking tape could be used to re-cover it Measure the DC resistance and compare with published documents. What is the nature of the grid cap wire with wire mesh. Is it like coax cable, where the mesh is closely spaced from the conductor or much larger in diameter?
::
::marv
::
::: [IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/SPKSwivels.jpg[/IMG]
:::
:::
::::
::::1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
::::
::::2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
::::Thanks, Bob
::::
Marv,
This is what I am dealing with..I don't know, like I said before I am doing this for looks mostly. I replaced the short red wire which was not shielded. I do not know if it was supposed to be or not but it was taped up pretty badly. The two I want to redo are 5 inches long each. It looks to be OD about 1/8 inch about 20 AWG and the inside wire looks like regular stranded wire. You can email me with your address. My address is in the Email box. Tell me what I can pay or swap you for this too. These Crosley sets always seem to have "something" a little different from other brands it seems...
Thanks, Bob
:Bob,
:I have a few different sizes of minature teflon insulated coax, and don't think there would be a high voltage arc-over problem. The shield as well as the center conductors are silver plated. The smallest is about 1/16 inch OD, and the largest is about 1/8 inch OD. If interested, I can try to measure the inner conductor size/AWG, but don't think current carrying capacity would be a problem. If interested, I can mail specified lengths for your trial.
:
:marv
:
::Marv,
::The mesh or shielding is very tightly attached to the
::cloth wire inside. About a half inch of each end are kind of soldered, I guess so they do not fray. They are not particularly wide in diameter like coax. They are closer in size to the cloth wire they enclose.
:: I found a product called Engineering Tubing Bender in Hobby Lobby that looked like it could pass for that spring-like shielding like I had seen in other sets. They come five to a pack and are about 4 1/4 inches long and look like springs with one slightly flared end. There are five different sizes in the set.
::Bob
::They were $3.17 for the set of five.
::
::
::
::
:::Bob,
:::You can unwrap the paper covering of the field coil and verify the the flexible wire connection to the winding and replace and/or stabilize as necessary. Most any masking tape could be used to re-cover it Measure the DC resistance and compare with published documents. What is the nature of the grid cap wire with wire mesh. Is it like coax cable, where the mesh is closely spaced from the conductor or much larger in diameter?
:::
:::marv
:::
:::: [IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/SPKSwivels.jpg[/IMG]
::::
::::
:::::
:::::1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
:::::
:::::2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
:::::Thanks, Bob
:::::
Marv,
This is what I am dealing with..I don't know, like I said before I am doing this for looks mostly. I replaced the short red wire which was not shielded. I do not know if it was supposed to be or not but it was taped up pretty badly. The two I want to redo are 5 inches long each. It looks to be OD about 1/8 inch about 20 AWG and the inside wire looks like regular stranded wire. You can email me with your address. My address is in the Email box. Tell me what I can pay or swap you for this too. These Crosley sets always seem to have "something" a little different from other brands it seems...
Thanks, Bob
:Bob,
:I have a few different sizes of minature teflon insulated coax, and don't think there would be a high voltage arc-over problem. The shield as well as the center conductors are silver plated. The smallest is about 1/16 inch OD, and the largest is about 1/8 inch OD. If interested, I can try to measure the inner conductor size/AWG, but don't think current carrying capacity would be a problem. If interested, I can mail specified lengths for your trial.
:
:marv
:
::Marv,
::The mesh or shielding is very tightly attached to the
::cloth wire inside. About a half inch of each end are kind of soldered, I guess so they do not fray. They are not particularly wide in diameter like coax. They are closer in size to the cloth wire they enclose.
:: I found a product called Engineering Tubing Bender in Hobby Lobby that looked like it could pass for that spring-like shielding like I had seen in other sets. They come five to a pack and are about 4 1/4 inches long and look like springs with one slightly flared end. There are five different sizes in the set.
::Bob
::They were $3.17 for the set of five.
::
::
::
::
:::Bob,
:::You can unwrap the paper covering of the field coil and verify the the flexible wire connection to the winding and replace and/or stabilize as necessary. Most any masking tape could be used to re-cover it Measure the DC resistance and compare with published documents. What is the nature of the grid cap wire with wire mesh. Is it like coax cable, where the mesh is closely spaced from the conductor or much larger in diameter?
:::
:::marv
:::
:::: [IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/SPKSwivels.jpg[/IMG]
::::
::::
:::::
:::::1. Compare double wires in picture....The Field(?)Coil swivels as it is very loose..is this bad news? Is there likely a disconnection inside? What to do?
:::::
:::::2. What can I use to replace grid cap wires that are "insulated" with a metal mesh covering. This may be more for looks as the ends are all badly taped and the cloth is very frayed.
:::::Thanks, Bob
:::::
This is what I am dealing with..I don't know, like I said before I am doing this for looks mostly. I replaced the short red wire which was not shielded. I do not know if it was supposed to be or not but it was taped up pretty badly. The two I want to redo are 5 inches long each. It looks to be OD about 1/8 inch about 20 AWG and the inside wire looks like regular stranded wire. You can email me with your address. My address is in the Email box. Tell me what I can pay or swap you for this too. These Crosley sets always seem to have "something" a little different from other brands it seems...
Thanks, Bob
PS I can't seem to select the correct photo on the first try :O)
Send me your mailing address via email, and I'll get some of this coax in the mail post haste.
marv
: [IMG]http://i231.photobucket.com/albums/ee203/bobwiththeradioproblem/GridCap3.jpg[/IMG]
:
:
:
:This is what I am dealing with..I don't know, like I said before I am doing this for looks mostly. I replaced the short red wire which was not shielded. I do not know if it was supposed to be or not but it was taped up pretty badly. The two I want to redo are 5 inches long each. It looks to be OD about 1/8 inch about 20 AWG and the inside wire looks like regular stranded wire. You can email me with your address. My address is in the Email box. Tell me what I can pay or swap you for this too. These Crosley sets always seem to have "something" a little different from other brands it seems...
:Thanks, Bob
:
:PS I can't seem to select the correct photo on the first try :O)
Regarding the speaker, it is normal for some field coils to rotate back and forth. Nothing is wrong. It just means that the mechanical fit is a bit loose. No harm will be done. Just make sure that the wires aren't loose. .....Interesting that your speaker isn't the same as mine, though it probably is original to your set. Mine is a Magnavox (typical for Crosley), and is completely disassemblable. It has many similarities to the 10 inch speaker in my 1937 Crosley 1117.
T.
Thanks for your responses to my questions.
I was really hoping that the speaker would be ok but I
had never had one do that before. I am always learning new stuff but also being exposed to explanations I do not have the base of knowledge to comprehend. I am trying though. This IS fun. But I am thick headed and
it takes almost a picture to show me things sometimes.
Not unusual for a photographer. Thats why I like
de Ed's posts :O) He is always posting
visuals :O) If the wire that Marv
is providing to me does not work then I will use your
suggestion as I have the wire you are talking about on
hand. Now I have to also find two resistors or wait until I have enough things to buy to fill a minimum order charge from those two sources you quoted also. I need a one or two watt 275 ohm and a 750 ohm resistor too. If anyone has these and are willing to sell or trade them for something I would be happy to hear from you. The old radio shack of course did not stock these sizes.
I don't know why I wasted my time checking...
Bob
:Your grid cap wires look just fine. If you wish, www.tubesandmore.com and www.radiodaze.com both sell nice cloth covered wire. Compress the shielding and slide in the new wire. Pull the end of the cloth tight and wax it so that it doesn't spread or fray on the way through. You can also apply a drop of super glue to the end of the wire and then form the cloth into a tip.
:
:Regarding the speaker, it is normal for some field coils to rotate back and forth. Nothing is wrong. It just means that the mechanical fit is a bit loose. No harm will be done. Just make sure that the wires aren't loose. .....Interesting that your speaker isn't the same as mine, though it probably is original to your set. Mine is a Magnavox (typical for Crosley), and is completely disassemblable. It has many similarities to the 10 inch speaker in my 1937 Crosley 1117.
:
:T.
For the 250 ohm resistors, just go with the closest values you can find. Perhaps they have 240 ohm resistors? That would be red, yellow, brown. A 270 ohm resistor, red, violet, brown, might work, too. Changing the resistance too much will affect oscillator bias, but a little change probably isn't too critical. The oscillator cathode bias resistor can probably be a 1/4 or 1/2 watt resistor.
T.
I have 1/4 and 1/2 watt resistors but few if any 1 watt.
Someone else added to my resistor needs when I asked if regular resistors could be used in place of those cloth covered ones. (Robert Blakely said: Yes, you can. A #42 tube has a max plate current of about 35mA. Using the formula P=I squared x R :
(.035x.035)x 750 = .91875 Watts. Therefore, a 1 watt resistor should suffice. Nothing wrong with a 2 or 3 watt if you have one.)
I thought I should be using 1 watt resistors so that is why I was looking for them..but if 1/2 watts are ok I have what I need.
Is there any reason to tuck the resistor inside the cloth resistor other than for looks?
Bob E.
:Regarding the resistors, values aren't too critical. Just try to get something similar in value. For the output tube, I found that a 1/4 watt resistor worked fine. In some of my radios the bias resistor for the #42 was much lower in value. I think that I went with something around 500 ohms. If your flex resistor is bad, but the cloth is still good, slip a 1/4 watt 750 ohm (or similar) resistor inside. Otherwise you can slip a resistor inside of a piece of spaghetti or compressed brown cloth insulation removed from some of the wire you bought. Paint colors on if you wish. If a 1/4 watt resistor doesn't work for you, a 1/2 watt will probably work, and will most likely still fit inside of the cloth sleeving. I have no troubles with the 1/4 watt resistor, though. It doesn't even get warm.
:
:For the 250 ohm resistors, just go with the closest values you can find. Perhaps they have 240 ohm resistors? That would be red, yellow, brown. A 270 ohm resistor, red, violet, brown, might work, too. Changing the resistance too much will affect oscillator bias, but a little change probably isn't too critical. The oscillator cathode bias resistor can probably be a 1/4 or 1/2 watt resistor.
:
:T.
T.
I will get the resistors in, the grid wires replaced and I should have the two tubes I ordered by then also. Then I will put in the new line cord and give it a try and see what other stupid questions I can come up with. Thanks Thomas.
Bob E.
:....Only for looks. Try out a 1/4 watt or a 1/2 watt resistor. It probably will get barely warm, if at all. If that's the case, then you're set. Also be sure to feel the resistor when the radio is at full volume. It might get warmer then.
:
:T.