Cathode Ray Tubes
From the beginning to the end....
From the beginning to the end....
The Cathode Ray Tube site
electronic glassware
History and Physics Instruments
electronic glassware
History and Physics Instruments
Oscilloscope CRT's
A small DG3-2 with 3cm face
Green phosphor screen early oscilloscope tube. (1938)
Green phosphor screen early oscilloscope tube. (1938)
RCA 3RP1 3"CRT
Medium persistence green phosphor.
Oscilloscope tube
Medium persistence green phosphor.
Oscilloscope tube
DG 7-2 7cm CRT Philips
Green phosphor screen
Used in one of the first Philips oscilloscopes (1938). Click on the picture to see the working scope.
Green phosphor screen
Used in one of the first Philips oscilloscopes (1938). Click on the picture to see the working scope.
AEG HR1/60/0,5 6 cm CRT
Early German wehrmacht CRT (1940)
Crude heavy gun construction
Early German wehrmacht CRT (1940)
Crude heavy gun construction
DuMont 5XP2A (1956)
5" wide-band oscilloscope tube
Long persistence green phosphor.
5" wide-band oscilloscope tube
Long persistence green phosphor.
RCA 3AP1A 3" flatface CRT
Medium persistence green phosphor.
Oscilloscope tube, successor of the RCA 906 tube which has a clear glass envelope.
Medium persistence green phosphor.
Oscilloscope tube, successor of the RCA 906 tube which has a clear glass envelope.
Telefunken D9-10GH 4" CRT
Medium short persistence green phosphor.
Oscilloscope tube
Medium short persistence green phosphor.
Oscilloscope tube
Brimar dual gun 5" CRT with spiral accelerator
Long persistence green phosphor.
Oscilloscope tube
Long persistence green phosphor.
Oscilloscope tube
Philips DG7-32 / CV2431 7cm CRT
Medium short persistence green phosphor.
Oscilloscope tube
Medium short persistence green phosphor.
Oscilloscope tube
Brimar-Thorn EMI waveform tube
Used in TV waveform monitors.
Odd shaped glass envelope
Used in TV waveform monitors.
Odd shaped glass envelope
RCA 5ADP1
5" oscilloscope tube
5" oscilloscope tube
Tektronix / SONY 154-0667-02
Small 3" CRT tube for portable oscilloscope
Small 3" CRT tube for portable oscilloscope
150CNB31T-RP
Matsushita waveform monitor CRT
Matsushita waveform monitor CRT
Telefunken DG7-52 / 3BNP-1 7cm CRT
Short persistence green phosphor.
Oscilloscope tube, very short tube, only 15cm.
Short persistence green phosphor.
Oscilloscope tube, very short tube, only 15cm.
Tektronix 154-0786-00
Oscilloscope tube
Oscilloscope tube
Telefunken DG3-12 3cm CRT
BRIMAR 3" CRT
Single gun oscilloscope tube
Single gun oscilloscope tube
Tektronix 154-0850-01
Advanced CRT from the 2445B Oscilloscope.
Advanced CRT from the 2445B Oscilloscope.
Tektronix type unknown
Oscilloscope tube
Oscilloscope tube
Toshiba 150CTB31 14cm CRT
Oscilloscope tube
Oscilloscope tube
VALVO D10-160 10cm CRT
Oscilloscope tube
Oscilloscope tube
Philips L14-140GH 14 cm storage CRT
Variable persistence green phosphor
Oscilloscope tube
Variable persistence green phosphor
Oscilloscope tube
HP Oscilloscope tube with storage screen.
5083-1972 3x 4" face.
5083-1972 3x 4" face.
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Philips dual gun E10-165P
RCA 5UP7 5" Oscilloscope CRT
Long persistence green phosphor CRT.
Long persistence green phosphor CRT.
VCR518 early 4" double beam CRT
Blue blue phosphor (1940)
Blue blue phosphor (1940)
DN 7-2 7cm CRT
Long persistence green phosphor (1937)
Long persistence green phosphor (1937)
DG7-5 Philips
7cm screen
7cm screen
Unknown early CRT
7 cm screen
7 cm screen
