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| General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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Thread Tools |
9th Sep 2021, 7:31 pm
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#1 |
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Pentode
Join Date: Dec 2019
Location: Egersund, Norway
Posts: 208
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De Forest valves
Hello, searching for datasheet of De Forest valves: 430, 431 and 432. Where to find?
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9th Sep 2021, 7:35 pm
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#2 |
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Octode
Join Date: Jul 2011
Location: Leicester, Leics. UK.
Posts: 1,684
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Re: De Forest valves
Try this USA forum if no joy here - very helpful people for American radio.
https://antiqueradios.com/forums/index.php |
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9th Sep 2021, 10:22 pm
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#3 |
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Octode
Join Date: Jul 2008
Location: Gloucestershire, UK.
Posts: 1,043
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Re: De Forest valves
Hello,
Looking at radiomuseum.org it would appear that:- the 430 is the same as a 30 https://www.radiomuseum.org/tubes/tube_430.html the 431 is the same as a 31 https://www.radiomuseum.org/tubes/tube_431.html the 432 is the same as a 32 https://www.radiomuseum.org/tubes/tube_432.html Datasheets for 30 31 and 32 here https://frank.pocnet.net/sheets/021/3/30.pdf https://frank.pocnet.net/sheets/021/3/31.pdf https://frank.pocnet.net/sheets/021/3/32.pdf Yours, Richard |
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