Re: [volt-nuts] LM399 on eBay

2013-08-25 Thread Joseph Gray
I saw those also. There are a few ebay vendors selling those. They certainly seem to have a lot of them. One can only wonder what equipment got stripped to harvest these. There are also a few vendors selling what look to be new parts. Related to this, just yesterday I picked up the main board from

[volt-nuts] LM399 on eBay

2013-08-25 Thread Demian Martin
I just saw this listing: http://www.ebay.com/itm/10x-LM399H-Precision-Reference-LM399-/09088231?p t=LH_DefaultDomain_0 &hash=item19de9e23e7 for 10 used LM339's for $50. It's

Re: [volt-nuts] Agilent calibration - certificate for a vector network analyzer (VNA)

2013-08-25 Thread Dr. David Kirkby
On 24 August 2013 18:55, Joseph Gray wrote: > David, Hi Joseph > That is quite a difference between the two certificates. The Techmaster one > doesn't tell you anything about what they actualy measured, or the > uncertainties. You have to trust that they know what they are doing and > that they

Re: [volt-nuts] Looking for Advantest (ADCMT) User Manual/Schematics

2013-08-25 Thread Sven Schnelle
Hi List, Sven Schnelle writes: > recently i acquired an old Advantest R6581 Multimeter. When i received > the unit, it didn't show anything on the display. It turned out that > the backup battery leaked, and some traces on the PCB where > interrupted. After fixing them, > it showed the R6581 wel