Those modules are probably just using the standard design for the E1T which you can find in any E1T datasheet. I have seen a lot of those modules and they have all been standard designs - there are a however a very few 100 kHz and 1 MHz designs that use a few more vacuum diodes and also one or more triodes to reach the higher speed (the standard module is capable of some 30 kHz). Some of the designs use a small trim potentiometer to adjust the cathode current to adjust each module for maximum counting speeds but I don't think that your modules uses one.
Be careful when pulling the E1T from the sockets as the sockets are sometimes very brittle and easily break, moisture and old age makes them brittle. Phywe, Leybold, Neva and Frieseke Hoepfner used them in Geiger counters and ordinary counters - one module can be seen here: http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Nixie/E1T.htm which I believe is identical to yours. You can buy decals, like the ones used on model planes, which you can use in inkjet printers and then just wet them and transfer them to the tubes and the put an extra layer of lacquer on top to seal them - I haven't used those decals in many years now so I am not sure where to buy them right now, but model hobbyist shops might know. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/cb4d0659-88fe-4dff-ae1d-603127f1627f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
