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Hellenedyne: a new type of regen-reflex radio
hi everyone:
i designed a new type of regen-reflex radio called the Hellenedyne. it uses a single triode in cathode follower mode at RF and in grounded grid mode at AF. the tube i selected needs only 18 volts of plate. it can be used with low-impedance earbuds for good sound. output is high compared to an Armstrong regenerator. if you love single tube designs you must try this one! explaination and circuit are available at my website: http://home.comcast.net/~phils_radio_designs/index.htm regards, phil PS if you wish to contact me feel free to send an e-mail |
#2
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Hellenedyne: a new type of regen-reflex radio
On Oct 10, 1:15 am, wrote:
hi everyone: i designed a new type of regen-reflex radio called the Hellenedyne. it uses a single triode in cathode follower mode at RF and in grounded grid mode at AF. the tube i selected needs only 18 volts of plate. it can be used with low-impedance earbuds for good sound. output is high compared to an Armstrong regenerator. if you love single tube designs you must try this one! explaination and circuit are available at my website: http://home.comcast.net/~phils_radio_designs/index.htm regards, phil PS if you wish to contact me feel free to send an e-mail Hey Dr. Phil That's interesting, you state somewhere in that linked article that over 70vdc is dangerous. I use throw away 35mm camera photo flash units that run off of a AA cell and drop the voltage down to 75vdc. I like to use the really old 1 and 3 volt directly heated cathode tubes, like the 3v4 and 1u4 or the 1u5 has a diode in it. My supply only requires 1 battery. Thanks for the great article. And the great old technology. 73 OM n8zu |
#3
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Hellenedyne: a new type of regen-reflex radio
hi n8zu!
you're very welcome. sorry for the late response: i'm not on usenet much. wow your supply idea is great. btw, i posted a more reproducible version of the Hellenedyne and some related PDFs: http://home.comcast.net/~phils_radio_designs/ regards, phil |
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