Re: [casper] Gigabit Ethernet

2020-02-18 Thread Ross Martin
Hi John, I'll throw out a possibility. Perhaps the cabling isn't correct and you're only getting connectivity on one of the two wires in the differential pair. This would work *sometimes*, which is about what you're seeing. This might happen if you wired your own cables or connectors and laid t

RE: [casper] Fwd: warning about Tenma dc power supplies

2020-02-18 Thread johnp via casper@lists.berkeley.edu
Dan, If any of those expensive things are FPGA, like the one used in the Roach2, XC6VSX475T-2FFG1759C, we have been supplying these at a discounted price from Digikey's. John Pallazola VP/Director iBuyXS Connecting OEM Excess With Customers That Need It! Of

[casper] Fwd: warning about Tenma dc power supplies

2020-02-18 Thread Dan Werthimer
-- Forwarded message - From: Paul Horowitz Date: Tue, Feb 18, 2020 at 7:24 AM Subject: warning about Tenma dc power supplies we've had an epidemic of failing Tenma dc supplies that fail to maximum voltage (shorted pass transistor), and have blown out expensive stuff in some resea