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The state of my CRT tube collection, in June 2020. Not a lot has changed since then. These are unique models, multiple quantities of the same tube are not shown here.

Apart from the two tubes on the far left (RCA 6499 “Radechon” data storage tube) and far right (Raytheon CK1414 “Symbolray” character generating tube), all the other CRTs are monochrome display tubes designed for oscilloscopes, TVs and various other vintage equipments.

The two right in the center are magnetic, white phosphor (P4) TV tubes, and all the other models are electrostatic, with different phosphor variants (P1 green, P4 white, P7 blue with yellow long persistence, P11 dark blue fast, and P31 yellowish green fast). The two on the front row to the far left are black & white Sinclair pocket TV tubes, one of which is one of a kind, flat with a side electron gun and a very clever beam deflection system. This was made specifically for the Sinclair FTV1 pocket TV.

The one from the back row to the left (Dumont 5SP11A) and the one from the middle row also to the left just in front of it (3ABP11), are both dual electron gun CRTs with P11 dark blue very short persistence phosphor made for oscilloscope signal photography applications.

One tube is not shown here, the one used on my Sgitheach SCDue CRT clock, a Brimar D10-230GH (P31).

Now for the model numbers, from left to right:

  • Back row : Dumont 5SP11A / Telefunken D 13-27 GH/T / Toshiba 5DEP31(F) / Hitachi 5DEP1(F) / Westinghouse 5DEP2

  • Middle row : RCA 6499 “Radechon” / VTP 3ABP-11 / Westinghouse 5AXP4A / General Electric 5AHP4A / RFT B10S3 / Raytheon CK1414 “Symbolray”

  • Front row : Telefunken D 5-100 W / Sinclair FTV1 pocket TV CRT / Telefunken D 7-16 GJ / Russian 6LO1i / Russian 3LO1i / Telefunken D 3-111 GM / National Union 1DP11

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