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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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Thread Tools |
19th Sep 2023, 5:41 pm
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#1 |
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Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,786
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B4 Plug-in Coils
Does anyone recognise these plug-in coils, please? The two shiny bakelite ones are made by "Energo", and the r/h ebonite one is un-named.
Had a quick lewk through "Radio Radio" & Tickling the Crystal" bewks, but nothing pops up. Maybe something out of a Scott-Taggart book. Regards, David |
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19th Sep 2023, 7:39 pm
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#2 |
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Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,019
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Re: B4 Plug-in Coils
Hi David, try early WW, AW etc adverts and you may get lucky
Ed |
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25th Sep 2023, 12:18 pm
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#3 |
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Octode
Join Date: Jul 2008
Location: Gloucestershire, UK.
Posts: 1,039
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Re: B4 Plug-in Coils
Hello,
I think that they may be 1920s HF transformers used for coupling in sets with one or more HF stages. The two marked ones would probably have been tuned with a tuning capacitor. The unmarked one could be a home-wound one as you could buy the formers to wind yourself. Yours, Richard |
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