[Test-Equipment] Need to shift pulse up 5V

[Mike Manes]

No, it doesn't invert the clock.  When the emitter is pulled low by the
-5V clock phase, the NPN turns on, and the collector voltage drops to
zero.  When the input clock goes high to 0V, then the NPN turns off and
the collector voltage goes to +5 (or whatever +V bus it's fed from).

If the clock sig is just a freq reference, then inverting it wouldn't
be no never-mind.

73 de Mike W5VSI

On 5/1/15 10:23, David DiGiacomo wrote:
> On Fri, May 1, 2015 at 10:13 AM, Barry <n4buq at knology.net> wrote:
>> If I understand this correctly, when the clock is at -5V, the collector is at +5V and when the clock it at 0V, then the collector is at 0V.  Is that correct?  If so, then doesn't that invert my clock signal?  If I'm thinking about it correctly (and I may be wrong), the comparator can be set to do either - depending on which way the inputs are connected, correct?
>>
>> I like the single transistor idea but if it inverts the signal, I'm not sure that's what I'm needing.
>
>
> The common base circuit is non-inverting.
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