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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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29th May 2014, 7:45 pm | #1 |
Heptode
Join Date: Apr 2014
Location: Wigton, Cumbria, UK.
Posts: 728
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Checking midget output transformer
Hi
This is the midget output transformer from my battery operated receiver (HT 120v / LT 2v accumulator). The writing on the side reads: PRI: BLUE & RED MAINS PEN & BATT. TRIODE BLUE & GREEN BATT. PEN MAX 30 M/A. D.C. Being a novice, that's pretty-much double Dutch to me. Is there a simple way to check it's working properly without reconnecting it to the receiver? Thanks Nick |
29th May 2014, 8:11 pm | #2 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,289
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Re: Checking midget output transformer
The best you'll be able to do is use a meter on ohms range to check the continuity of the windings. If they show open circuit, then the transformer is toast. If they show continuity, then the transformer is probably OK, but it may have short circuited turns.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
29th May 2014, 8:19 pm | #3 |
Heptode
Join Date: Apr 2014
Location: Wigton, Cumbria, UK.
Posts: 728
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Re: Checking midget output transformer
OK Graham, thanks, I think I know how to do that.
Regards Nick |
30th May 2014, 12:07 am | #4 | |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Checking midget output transformer
Quote:
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
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30th May 2014, 12:14 am | #5 |
Heptode
Join Date: Apr 2014
Location: Wigton, Cumbria, UK.
Posts: 728
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Re: Checking midget output transformer
Thanks Chris, it does help
Regards Nick |