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I'm afraid that radiologically enhanced neon bulbs are pretty much a thing of the past. Once, the public viewed the use of radioactive materials as being new and sciency. Now, they are terrified...

They really shouldn't. The aging problem is due to sputtering of the electrode material onto the glass envelope. This evaporated metal travels to the glass, and knocks gas molecules/atoms to the

Ah! Way better than my memory! Thanks for the reference. -Chuck Harris Bob Goodrich bobgoodrich84@... [hp_agilent_equipment] wrote:

I have indeed opened the connectors and inspected the connections. From what I can tell, they all look OK, although due to the density of the connections, it is hard to get a good look at the middle

Most of the trouble in the PSU pcb seems to stem from overheating, due to the fact that there`s very little moving air. I used a chassis punch to make a couple of holes in the bulkheads downstream of

I agree! The ultracheap testers are all based on this (AFAIK) <https://www.mikrocontroller.net/articles/AVR_Transistortester#Introduction_.28English.29> Given its price it is an amazing little gadget.

Wouldn’t NOS parts have the same problem from age? Gary Appel Sent: Saturday, July 15, 2017 6:09 PM To: hp_agilent_equipment@... Subject: Re: [hp_agilent_equipment] Re: 141T reference

These guys claim to have a Z82R10? available for $5.95. It might be a suitable replacement. It might require a change in the series Resistor?? R21.

There might be some NOS parts somewhere but neither Google nor eBay brings up anything for "Signalite 82R7." Jeremy [hp_agilent_equipment] <hp_agilent_equipment@...> wrote: -- Sent from my

Wonder if it's still available. That was a l o n g time ago!

On Sat, 15 Jul 2017, Bob Albert bob91343@... [hp_agilent_equipment] wrote: If you want something that measures actual values with good precision go buy DE-5000. Buy original one, from Japan. It

I wasn't comparing the units in detail.? For the vast majority of measurements, the cheaper one is more than adequate.? I am sure your extra money does buy some functionality but for me, I have

Below is a link to a Signalite application note pamphlet..Page 14 has the Z series of VR tubes. www.philbrickarchive.org/jlrmsousa/signalite_glow_lamps.pdf Bob

[hp_agilent_equipment] <hp_agilent_equipment@...> wrote: Are you saying that the Hungarian $55 one can be had on eBay for $10? I don't think so. The Hungarian one seems to be well thought

A number of my antiques use neon bulbs as voltage references; it seems to be common in HP (and other?) instruments of that era. I too have read about (and experienced) SA plug-in fuses blowing because

My 141T has a Z82R7? reference tube in it.? As of 8/21/14 the voltage across the VR tube was measured at 83.6 instead of 82.7 V. I had to shunt R26? 22.1K with 220K in order to? in order to be

Donald,Have you opened the connectors and inspected the connections on the 60220 cable?? From my experience this cable should also work with you 8566B. -rastro

Ok, good question. This thread is nominally about the voltage reference in the 141T, older models, that was a gas regulator tube, that looked like an oversized NE2. It has been a very long time since

hi cliff second mail..10 ghz info......today have had over 50 mails for yahoo groups,,,,none to do with my request..so will mail them again tomorrow,,,to stop..... right 10 ghz ...GB3FY..located at