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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
Posted to sci.electronics.repair
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Coil Substitution Question
I'm working on a Hitachi 31UX5B that's missing a small coil in the
pincushioning (I had removed it a year ago when I first got the set, and it must have gotten lost). I have a similiar Hitachi with the same coil, and I was wondering if it was possible to measure the other coil and then create a homemade one of the same inductance. Trouble is, I don't have an LCR meter - is there any way to measure inductance without one? (such as with an oscilloscope?) And would such a sub even work, or is there more to consider than just inductance? The part number on the board is L704, the parts list for that set does not give a value. Thanks for any help. -- To reply via Email, remove NOSPAM from the address |
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#2
Posted to sci.electronics.repair
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Coil Substitution Question
L704 is 1mh choke...
kip "Chris F." wrote in message ... I'm working on a Hitachi 31UX5B that's missing a small coil in the pincushioning (I had removed it a year ago when I first got the set, and it must have gotten lost). I have a similiar Hitachi with the same coil, and I was wondering if it was possible to measure the other coil and then create a homemade one of the same inductance. Trouble is, I don't have an LCR meter - is there any way to measure inductance without one? (such as with an oscilloscope?) And would such a sub even work, or is there more to consider than just inductance? The part number on the board is L704, the parts list for that set does not give a value. Thanks for any help. -- To reply via Email, remove NOSPAM from the address |
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#3
Posted to sci.electronics.repair
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Coil Substitution Question
Hitachi Number is 2275381..
kip "Chris F." wrote in message ... I'm working on a Hitachi 31UX5B that's missing a small coil in the pincushioning (I had removed it a year ago when I first got the set, and it must have gotten lost). I have a similiar Hitachi with the same coil, and I was wondering if it was possible to measure the other coil and then create a homemade one of the same inductance. Trouble is, I don't have an LCR meter - is there any way to measure inductance without one? (such as with an oscilloscope?) And would such a sub even work, or is there more to consider than just inductance? The part number on the board is L704, the parts list for that set does not give a value. Thanks for any help. -- To reply via Email, remove NOSPAM from the address |
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