On 8/27/10 11:00 AM, threeneurons wrote:
"threeneurons"<threeneurons@...> wrote:
"per.zapro"<per.zapro@> wrote:
I have designed a PCB around Hans' Nixie multimeter design :
... The CA3162 already outputs its data in a multiplexed format,
Here's a drawing of my last rant:
That's a pretty simple circuit to get the job done.
One question - what sets the 280 uA current in the MPSA42 collector to MPSA92 base connections? Shouldn't there be a big resistor there? The MPSA42 will be saturated and the MPSA92 base is one diode drop below 180V.
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David Forbes, Tucson AZ