Thanks GP I appreciate the offer. I love dekatrons. I'm hoping I can work the price down some.
Bill On Tue, Dec 17, 2019, 7:30 AM GastonP <[email protected]> wrote: > I am 100% sure that one of the outputs from the yoke is just a pulse > either going out from a sensor coil or a simple mechanical microswitch. > A simple reverse engineering of the input connectors to the dekatron box > should lead you to the right one. I can lend a hand if you can get hold of > simple schematics or a description of what you see. > Regards > Gastón > > On Wednesday, December 11, 2019 at 7:02:23 PM UTC-3, Bill Notfaded wrote: >> >> That's helps a lot X you explained it well. I was trying to imagine how >> the disc enabled adjusting the test somehow because it's obviously >> graduated. I wish it had a test mode... I don't see anything like that on >> it... I was thinking to simulate turning the magnetic field so you could >> get the dekatrons going without having to spin the axis potentially fast or >> with force. >> >> Thanks, >> >> Bill >> >> On Wed, Dec 11, 2019, 7:38 AM GastonP <[email protected]> wrote: >> >>> It is a dynamometer, and as such, it measures force. In this case, >>> torque. It is based in the electromagnetic brake principle and dynamic >>> balance and all of this is done to measure the force of a motor or other >>> rotating device in a dynamical way. >>> Probably there is an electromagnet either in the box behind the dial or >>> within the thick axis. The axis rotates at a speed imposed by the DUT >>> (Device Under Test), which we cannot know what it was but we can assume it >>> was some kind of motor/engine. >>> The electromagnet generates a field that is induced in the axis/disc, >>> which in turn generates a counterfield that attracts the axis to the >>> electromagnet. This results in a braking effect. Changing the current >>> through the electromagnet changes in turn the amount of force. The disc >>> must have some kind of spring behind which is calibrated in force units. >>> When the disc is in the "0" position, the force imposed by the rotating >>> axis equals the one in the disc, thus balancing the system. One reads the >>> force as a proportion to the magnetic field / current through the >>> electromagnet. >>> I hope I could explain it well, but the principle is really simple. The >>> idea of using a magnetic brake is that there are few losses in the system >>> (no friction as in a mechanical brake) and the calibration is easier and >>> last a lot longer. >>> >>> On Wednesday, December 11, 2019 at 2:51:31 AM UTC-3, Bill Notfaded wrote: >>>> >>>> Maybe it's not the wheel but the post on the axis and the wheel has >>>> some adjustment on it? >>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "neonixie-l" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/neonixie-l/Q0d0fpt3DWs/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> To view this discussion on the web, visit >>> https://groups.google.com/d/msgid/neonixie-l/2d8f7026-ea68-4fcf-9d9f-0def00dfa145%40googlegroups.com >>> <https://groups.google.com/d/msgid/neonixie-l/2d8f7026-ea68-4fcf-9d9f-0def00dfa145%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/neonixie-l/Q0d0fpt3DWs/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/ee7eb452-c12d-4cdb-93b9-93341307bf54%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/ee7eb452-c12d-4cdb-93b9-93341307bf54%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CADToqn2xUN8FWR9G_bg6-4qZxvLLev0JX%2BxjK0%3DU-j7oJQZS2g%40mail.gmail.com.
