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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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14th Mar 2017, 5:30 pm
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#1 |
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Triode
Join Date: May 2016
Location: Exeter, Devon, UK.
Posts: 20
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Smoothing choke replacement
Please could I have some advice on a replacement part for a 160 m 2h smoothing choke . Could a use a resistor ? if so what resistance would be best ? Or is there a modern replacement part ?
thanks keith |
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14th Mar 2017, 6:01 pm
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#2 |
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Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,288
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Re: Smoothing choke replacement
How about using a Hammond 157R. Available from Bluebell Audio. Look under Transformers, then Choke:-
http://www.bluebellaudio.com/
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
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15th Mar 2017, 1:52 pm
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#3 |
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Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Smoothing choke replacement
Depends on the circuit. If all the HT comes off after the choke, a resistor of the same value as the choke's dc resistance followed by a much larger capacitor than original would probably work fine. If the rectifier can stand it, up the reservoir cap value as well.
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15th Mar 2017, 7:51 pm
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#4 |
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Triode
Join Date: May 2016
Location: Exeter, Devon, UK.
Posts: 20
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Re: Smoothing choke replacement
Hi the rectifier valve is a U52 16mfd cap them the choke (burnt out) then 16mfd cap its only a old film projector amp so I but of sound loss and humm is ok as optical sound is no hi fi
keith |
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