Protecting probes in shipping I bought an end-window alpha probe that came in a reused spice container. It may have held organo in a former life, but with a small piece of foam tubing it
Headphone repair One of mine went bad and it was not possible to cleanly remove the coil and rebuild it, so I went to Radio Shack and bought a small piezo disk and fitted it.
Passive piezo speaker Doesn't make much noise, but no passive speaker will. My instructable. GPL so you can copy it and pass it around. The other assembly is with an LED instead of
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Re: Vacuum Tube Check Source Kits Shipped to Members! [1 Attachment] Dear David, Just remember one thing: "shake it, but DON'T break it!" Thanks. ~ Cliff ************* On Fri, Feb 27, 2015 at 7:18 PM, David Nix
Allnilo - Allyn Remembered IIRC, from Doug's report last year (Apr.?) that our friend Allyn passed away a year ago today - 02-27-14. He was a very mindful, and caring individual, who had
Re: Vacuum Tube Check Source Kits Shipped to Members! That big tube is the only thing in my collection that will light up a Vic 05-571 MiniMonitor [other than direct contact with a smoke detector pit.] It makes me
Re: 6a's HV diode failures ? I was also thinking about noise...not TOO tough to filter, and a shielded housing is not too tough to make, in case radiated noise is an issue. On Fri, Feb 27,
Re: 6a's HV diode failures ? ... Seems to depend both on the tube, and on the specific scintillation material used. Some materials produce a pulse of photons (and hence electrons from the
Re: 6a's HV diode failures ? Those bricks put out lethal current, no sag. They require respect. I've used one on 2 different scints and the battery current requirements are modest. I
Re: 6a's HV diode failures ? I haven't bought a nixie tube HV supply myself, but I've built very similar invertors and they can provide about 1000V into 50Mohms or higher So as long as the
Re: 6a's HV diode failures ? That should work fine for a GM tube, but might require a bit of further rework to work for a Scintillator. On Fri, Feb 27, 2015 at 12:21 PM, peter
Re: 6a's HV diode failures ? Other cheapo alternative. There are flyback power supplies for nixie and magic eye tube projects. They output 100~ +200V under a heavy load( driving nixie
Re: 6a's HV diode failures ? Hi David, Regarding that EMCO brick, can you tell me how many milliamps on the (4.5V ?) supply are required for 900V using a G/M tube? Is the high voltage
Re: Hot package found... a good thing! -- /// -- The kits are descri Hi Cliff, I did receive the kit #2 as you described it. I don't have a spectrometry set up so was guessing/reading the packaging for what was in each tube.
Re: 6a's HV diode failures ? You can buy tiny EMCO bricks that take regulated low voltage dc and make well above 1KV. They will easily fit on a CDV-700
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