the brother is the 5719 , high mu (70) ... i have many too! would you play a swap George ?
Maybe. I an thinking about building a vacuum tube guitar preamp right into the guitar, so a high mu tube may be useful. I have a box with about 500 assorted sub mini tubes I will check what is in the box when I get home. I know that there are some pentodes, and dual triodes but I don't remember any numbers right now.
Its used here.
A Rapid Scanning Spectrometer for Oscillographic Presentation in ...
cell. The cathode follower employs a Sylvania 5718. subminiature triode and is shown in Fig. B. The. intermediate amplifier is shown in Fig. 5C and is made ...
www.opticsinfobase.org/viewmedia.cfm?id=50074&seq=0
http://ephysics.fileave.com/spectroscopy/NearIRspec-5718.pdf
A Rapid Scanning Spectrometer for Oscillographic Presentation in ...
cell. The cathode follower employs a Sylvania 5718. subminiature triode and is shown in Fig. B. The. intermediate amplifier is shown in Fig. 5C and is made ...
www.opticsinfobase.org/viewmedia.cfm?id=50074&seq=0
http://ephysics.fileave.com/spectroscopy/NearIRspec-5718.pdf
Subminiature tubes are discussed in this book. Click the links in Contents to get to the pages on miniaturization and subminiature tubes.
Advances in Electronics, Vol. III L. MARTON,
http://books.google.com/books?id=PH...III&sig=GyIwVgy0BIfy6x0sO--GwuhZdgQ#PPA184,M1
Advances in Electronics, Vol. III L. MARTON,
http://books.google.com/books?id=PH...III&sig=GyIwVgy0BIfy6x0sO--GwuhZdgQ#PPA184,M1
I've used sub-mini's inside CD players, seehttp://pw2.netcom.com/~wa2ise/radios/tubedac.htm
Also used submini's in radios:
http://pw2.netcom.com/~wa2ise/radios/AA5submini.html
If you're looking to get rid of some submini tubes, I'll take 'em...
Also used submini's in radios:
http://pw2.netcom.com/~wa2ise/radios/AA5submini.html
If you're looking to get rid of some submini tubes, I'll take 'em...
If you're looking to get rid of some submini tubes, I'll take 'em...
I have 4) Sylvania and 2)RCA with 1966/67 date code
Email if interested
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