[tech] Hub action - progress

[Simon Fryer]

Bingle

Hub will be a while yet. Got one of the two transistors today. Still
need to get another one. A nice and friendly 400VCE and 4A NPN Si
variety. I assume that the transistor is driven well into saturation
so speed is not a real requirement. Will see what Altronics and 
Jaycar have to offer. RS do stock one but I am not going to get the 
chance to drive up there to buy one. 

Powered up the hub from one of my bench PSU's and all the LED's came on
in the right order so I am assuming that it will work. I did not 
actually push any frames through it but the current consumption
was not excessive so I am assuming that the logic is ok. 

See Ya
Simon

-- 
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"Well, an engineer is not concerned with the truth; that is left to 
philosophers and theologians: the prime concern of an engineer is 
the utility of the final product."  
Lectures on the Electrical Properties of Materials, L.Solymar, D.Walsh