Item Tag: DeForest
De Forest’s Training Lessons FDM-1– FDM-20 FULL SET OF 20 & more DeForest Stuff
Up for sale here is this set of 20 original vintage De Forest’s Training Manuals. They’re all here, FDM-1 through FDM-20, with so much information about vintage electronics! The manuals are in great shape with light overall wear. I didn’t look through every single one, but there might be some writing or highlighting in them somewhere. There is more De Forest stuff here as well–lots of paperwork, the shelf holder for the manuals (which is in pretty rough condition), some unused envelopes, and a pair of De Forest’s pennants that are stuck to each other. These are original paper manuals, not a copy or a CD/DVD. They are in great usable condition. Please see my pictures for details. US shipping and handling is $10. I’ll be glad to combine shipping with my other manuals, just ask me for a combined invoice. If you have any questions, please ask. I have more manuals and other vintage electronics listed–feel free to take a look!
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426 (26) DeForest Audion Balloon Globe Receiver Radio Power Vacuum Tube Tested
One Tested 426 (26) DeForest Audion Balloon Globe Audio Receiver Radio Power Vacuum Tube. Manufacturer: DeForest. Model: 426 26. Plate type: silver. Excellent strong test results for Gm: 70. Glass: clear.
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Pair Cunningham and DeForest Type 27 Pear/Globe Tubes, Engraved, Tested
Original #27 tubes (227, 327) in globe/pear style bulb shape from late 1920s to early 30s. The 27 was introduced in 1927 in this glass style and was one of the first indirectly heated cathodes. The DeForest 27 is a bit rare.
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RCA 802 – De Forest Beam Tetrode Vacuum Tube Made in U.S.A. Vintage Not Tested
This classic vacuum tube, despite not being tested, holds historical significance as a bygone technology from the mid-20th century.
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Audion Deforest Radio Co 24 Amplifier Tube As Is
Untested, sold as is. Not sure if the box belongs to the particular tube. Items show wear, box is damaged. Please accept that the item is sold as seen and shown in the photographs, so, please look over them carefully. Feel free to contact us with any questions regarding this item. If you are satisfied with your purchase, please leave feedback. If there is a problem, please let us know and we will correct it to your satisfaction. Returns accepted of items shipped back in original, unaltered condition.
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Radiotron & Vista 201A De Forest Atwater Kent battery radio tube LOT # 54
Used for many classic radios. I tested these tubes on my Hickok TV7 tube tester. The minimum workable number for this tube is 18. Lots of life in both tubes.
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De Forest Audion 4-Pin Engraved Base Triode Vacuum Tube Early Radio – CB55B1
Up for sale is a highly collectibleDe Forest Audion 4-Pin Vacuum Tube, an early triode tube that represents the dawn of electronic amplification and radio technology. Type: De Forest Audion triode.