I want one!Here's some pictures of people wearing this:https://rarehistoricalphotos.com/radio-hat-pictures-history-1949/
Interesting. I always thought tubes ran on much higher voltages.
It looks like these old portable tube radios had an 'A' battery and a 'B' battery. The 'B' battery was for the tube anode plate and was 90v. They apparently used to sell small 90v batteries just for these radios.https://www.dos4ever.com/battery/batteries.jpg
Thanks, Newton!
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4 comments:
I want one!
Here's some pictures of people wearing this:
https://rarehistoricalphotos.com/radio-hat-pictures-history-1949/
Interesting. I always thought tubes ran on much higher voltages.
It looks like these old portable tube radios had an 'A' battery and a 'B' battery. The 'B' battery was for the tube anode plate and was 90v. They apparently used to sell small 90v batteries just for these radios.
https://www.dos4ever.com/battery/batteries.jpg
Thanks, Newton!
Post a Comment