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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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15th Apr 2024, 8:22 pm
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#1 |
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Octode
Join Date: Dec 2008
Location: Wincanton, Somerset, UK.
Posts: 1,856
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"Modern Radio" monthly - 1920's valves
Some time ago I bought a set of six bound volumes of this magazine, spanning 1922 to 1926.
There are ocasional articles on contemporary valves, with some data. Is any of this informationof interest, or is there already data available on 1920's valves? If not I can scan. John |
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16th Apr 2024, 1:01 pm
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#2 |
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Octode
Join Date: Feb 2009
Location: Bletchley, Buckinghamshire, UK.
Posts: 1,357
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Re: "Modern Radio" monthly - 1920's valves
They don't seem to be available on the World Radio History archive site, so some of the information may be of interest.
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17th Apr 2024, 9:43 am
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#3 |
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Octode
Join Date: Dec 2008
Location: Wincanton, Somerset, UK.
Posts: 1,856
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Re: "Modern Radio" monthly - 1920's valves
This is a table compiled at the end of 1925.
John |
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17th Apr 2024, 10:20 am
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#4 |
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Heptode
Join Date: Jan 2008
Location: Sheffield, South Yorkshire, UK.
Posts: 720
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Re: "Modern Radio" monthly - 1920's valves
Thanks John, I have downloaded it just in case!
__________________
Martin BVWS member GQRP Club |
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17th Apr 2024, 7:26 pm
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#5 |
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Nonode
Join Date: Jul 2009
Location: Cheshire, UK.
Posts: 2,101
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Re: "Modern Radio" monthly - 1920's valves
Thanks for adding that data on early valves, it includes the Metro-Vick valves that are not in the settings data books for the Taylor 45.
David |
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21st Apr 2024, 4:54 pm
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#6 |
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Octode
Join Date: Dec 2008
Location: Wincanton, Somerset, UK.
Posts: 1,856
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Re: "Modern Radio" monthly - 1920's valves
It apears that the Technical Press outfit regularly tested components submitted by manufacturers, including valves. I've attached scans of the ones I've located. Also, an interesting bit of history, they became one of the first companies to occupy the brand-spanking new Bush House. (Note Marconi House only a stone's throw away.)
John |
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