Yes, there are! But if they are suitable is another question.
1Zh17b 1Zh24b 1Zh29b 1Zh37b I can serve you with data of these tiny tubes. They are probably developed for space, missile and airborne fighter. These are all Russian subminiature tubes of an very uncommon construction. There are no grids, but rod to regulate the electrons, more or less at the way of a gammatron, making the system very ruggedized. Joe Sousa (TCA) has written an article in the Tube Collector and more extended at the forum of Radiomuseum.org eric -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Rehwinkel Sent: woensdag 12 februari 2014 0:29 To: [email protected] Subject: Re: [neonixie-l] Phantastron divider >>> I've built a few dividers down to 1Hz and they work phantastically. Always use the 6AS6 and not just any pentode. >> However, Eric said he wanted a low power implementation. Which makes me wonder if any of the subminiature pentodes out there could be pressed into service. Due to the way the rod pentodes work, I think they wouldn't work well. I'm guessing the trick is how G3 causes the current to divide between G2 and the plate. I may have to grab some tubes and breadboard some stuff. >> > The heater power alone can be just a killer. Let's see, a 1AG4 draws 1.25V at 40mA for the heater. That's 50mW. An ordinary dekatron, at 450V and 500µA is 225mW. Are there any submini pentodes with G3 pinned out separately? Yup, the CK511X is one. More interestingly, the 8522 is listed as a "dual control" pentode, like a 6AS6, although it draws the usual 6.3V @ 150mA for the heater, same as a 6AS6/5725. The folks on the bay claim a Russian 6J2P is equivalent, I wonder. - John -- 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/0D68F75E-A561-4C04-84BB-CC61070 5DF05%40mac.com. For more options, visit https://groups.google.com/groups/opt_out. -- 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/!%26!AAAAAAAAAAAYAAAAAAAAAPDddShx705MuX20yCpp0vvCgAAAEAAAADKS6HvBZjdOrk/TGMHNbgoBAAAAAA%3D%3D%40zeelandnet.nl. For more options, visit https://groups.google.com/groups/opt_out.
