Specials
Here comes various specials in a random order
Click on a picture to get a larger view
xraytube.jpg (23590 bytes)
This is a small X-ray tube for lab or demo use.
norbits.jpg (31788 bytes)
This is not mutated ICs for color TV. It is Philips NORBITs, and they are in fact small modules with discrete components. Used for various logic systems. Has anyone more info ?
25kvrect.jpg (26143 byte) 
To supply the anode voltage in a colour picture tube with 25 kV you need some kind of rectifier. The tubes on the left is a GY501 diode and a PD500 ballast triode. The PD500 was used to stabilize the EHT since  the GY501 had relatively high voltage drop. The item on the right is a silicon voltage tripler with low internal resistance. It was made by Siemens around 1970 and it is this kind of rectifier that is still used today.
There are a large number of US tubes for the same purposes.
delaylines.jpg (21942 byte)
In the colour decoder in a PAL (or Secam) TV-set there need to be some means of delaying the chrominance signal prior to decoding. Here are four different delay lines, the grey one is an old one from Philips (DL10, ca 1967), below is the first one from Telefunken (VL1, also ca 1967), upper right shows a newer Telefunken (VL10) and lower right is the latest from Philips (DL700)  before they all went to fix this function digitally in a chip.
The designation VL stands for Verzögerungsleitung = Delay line
Current regulators
Used as stabilizers in battery chargers or as limiters in serial heater chains.
340
340.jpg (10780 byte)
1331
1331.jpg (9574 byte)
1904H
1904h.jpg (25196 byte)
1910
1910.jpg (9859 byte)
1913
1913.jpg (23085 byte)
1918
1918.jpg (26061 byte)
1927
1927.jpg (25854 byte)
4120aa
4120aa.jpg (30528 byte)
4121aa
4121aa.jpg (26170 byte)
4121ab
4121ab.jpg (23211 byte)
   
Various things
155UG
155ug.jpg (23495 bytes)

  UV Photo tube
px1348.jpg (16288 bytes)
Quartz crystal in a tube.
Thermo coupler
thermo-b.jpg (24264 bytes)
STC G240-2D
g240-2d.jpg (11264 byte)
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56006 Omegatron