Yes, it's kind of arbitrary, since lots of things can be used as refrigerants, and are classified with R-numbers for use in that context. For example, R-290 is "clean" propane used for refrigeration,

I fired it up last night to look at the problems again, and two very interesting things happened. First, other than a big blotch near the center of the screen from the power-up transients, the image

Look here http://www.qservice.tv/vpasp/shopexd.asp?id=755&bc=no Best regards Herbert Am 11-06-2013 15:01, schrieb Cliff White:

Fair enough Ed, I thought it was first mentioned as a refrigerant (to make cold) not as a freon replacement in probes. Don Black.

I guess that means I need to get the schematic... I'll work on that. :) The plug that was installed backwards was a 5 pin flat connector at the back of the board (P2651). It has

Jerry, We're seeing a decent number of spectrum analyzers coming out of celphone service now that work to about 1.8 GHz, which would be ideal for your 440 MHz need, since they cover up to 4th

If it boiled at -60, it wouldn't have been "interesting," and I wouldn't have mentioned it in the first place, and we wouldn't be talking about it. Boiling near room temperature allows for a whole new

Hi Jerry, have you considered getting a dedicated spec an? Those are found much cheaper than the spec an plugins for tek 7k.. HP, Anritsu, Ono Sokki, Nicolet, Stanford Research are good makes. You're

Unless you have a dead, unsalvageable plug-in, why not make rails out of hardwood, like maple ? HankC, Boston WA1HOS

hi ure right i didnt mention my intended uses / I am going to be using it for tuning -repairing a repeater system just for personal test gear not for on the job etc /being retired its jus for fun

Thanks everyone. I was thinking of how to keep my ice cream cold but use on hot transistors makes sense. Don Black.

Meanwhile I received a copy of this article. It appears that the data are for fluids only and under rather high pressures (over 1 MPa, 10 atm). Then permittivity of HFC-245fa is well above 6. I have

Craig, we still don't know what he wants the spec an for. Jerry, care to elaborate? D. <c.sawyers@...> wrote:

The structure of the rear guides the plugins to align correctly with the pins. If you remove the plastic rear piece. It becomes difficult to insert the plugin. There are hundreds of plugins setting

Systems don't need to be low pressure. Electronics are moving to higher temperature operation (cooling is a major cost of data centers) and the higher temperature refrigerants are used in phase change

for I bought mine in the US. $109 plus $63 shipping to the UK. Perfect cosmetic condition (once the layer of dust was cleaned off). Craig

Well, I should probably have said: The Waveform Calculator is pretty rare for us over in Europe. For what it is worth... Cheers, Magnus

Normal. And that is on a 7623B that came sealed in the original double cartons, with accessories in sealed bags straight from Beaverton, so it only has about 20 hours use with all of them by

I hate it when that happens. Mark

Thanks for the feedback about the 549 and its uses. The CRT in mine seems to be undamaged - the storage brightness is uniform all across the screen, though the whole thing is nowhere near as bright as