Edgerton Lab Notebook 07, Page 12:
May 15, 1936
- Page start date:
- May 15, 1936
- Content type:
- diagram,notes
- Transcription:
- [Electrical diagram] Note '115x3 cath = 345 watts cath heat 2.5x3=7.5; 6.3x.8=5.4; 7.5+5.4 = 13 watts'.
Discussed design of strobotic [?] with transformer for filaments only.
[Electrical diagram] with note 'twin triode like 53 except with 6.3v filament'
May 22 1936
On the 20st [sic] I spent all afternoon experimenting with a U-shaped tube designed to fit the General Radio 548 stroboscope. The tube was leaky however and therefore the experiments useless.
Yesterday I made two tubes. The first was filled with 1.5 cm of argon. 12mm U-tube with CSCL+Al cathode. I took it over to S. R. and it worked ok in the stroboscope except for the lowest capacity. Holdover then resulted. The second was filled with neon at 6cm.
An interesting experiment resulted with the neon tube. If the sparker is connected to the bend of the U and there is no voltage between the electrodes, a red
- Keywords:
- filament
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