[mailto:time-nuts-boun...@febo.com] Im Auftrag
von Geoffrey Smith
Gesendet: Donnerstag, 22. Juli 2010 06:13
An: Discussion of precise time and frequency measurement; Geoffrey Smith
Betreff: Re: [time-nuts] Function of cap to GND in isolation transformer circuit
Joop,
The cap is isolate any DC from the
Joop,
The cap is isolate any DC from the transformer, The manual for TADD-1 has
this iformation at the TAPR site has this manual
http://www.tapr.org/~n8ur/TADD-1_Manual.pdf.
On Wed, Jul 21st, 2010 at 9:46 PM, Joop wrote:
> Hi,
>
> I noticed in several circuits that the 10MHz isolation trans
quot;Joop"
To: "Joop"
Cc:
Sent: Wednesday, July 21, 2010 11:46 PM
Subject: [time-nuts] Function of cap to GND in isolation transformer
circuit
Hi,
I noticed in several circuits that the 10MHz isolation transformer
in
input and output circuits have a 6.8nF or 10nF capacitor
Hi
The cap likely improves the VHF stability of the circuit.
Bob
On Jul 21, 2010, at 7:46 AM, Joop wrote:
> Hi,
>
> I noticed in several circuits that the 10MHz isolation transformer in
> input and output circuits have a 6.8nF or 10nF capacitor to GND. How
> necessary is this for suppressio
Hi,
I noticed in several circuits that the 10MHz isolation transformer in
input and output circuits have a 6.8nF or 10nF capacitor to GND. How
necessary is this for suppression of unwanted signals? Is the
transformer itself not sufficient? I would expect common mode issues to
be a bit worse with
