Re: Fast Rise/Fall Time Pulser

Dave Wise
 

The issue is lead length on the tunnel diode.

Dave

-----Original Message-----
From: TekScopes@... [mailto:TekScopes@...]
Sent: Thursday, October 12, 2017 9:57 AM
To: TekScopes@...
Subject: Re: [TekScopes] Fast Rise/Fall Time Pulser

Hi David,

but this does not mean, that the connector needs to be connected directly. A nice peace of semi rigid will give the same performance ?!

Herbert



Am 12.10.2017 17:40, schrieb David Wise david_wise@... [TekScopes]:


Minimize parasitic inductance and capacitance. When you're talking
picoseconds, a picofarad or nanohenry is huge.

Dave Wise

-----Original Message-----
From: TekScopes@... [mailto:TekScopes@...]
Sent: Thursday, October 12, 2017 9:39 AM
To: TekScopes@...
Subject: Re: [TekScopes] Fast Rise/Fall Time Pulser

Hello all,

can somebody enlighten me, why it is a need to have the tunnel diode
so near to the connector ???

Herbert


Am 12.10.2017 17:26, schrieb David Wise david_wise@... [TekScopes]:


Dennis, I think you're thinking of the 067-0681-01 TD Pulser. That's
the John Addis design with 43-ohm resistor in the BNC.

I wonder if soldering the TD could be made safer by having an
assistant spray the body with freezer while you solder the lead.
That's assuming steep gradient is less of a danger than overheating.

Dave Wise


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Posted by: Measurement <measurement@...>
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