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> > -Original Message-
> > From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behal
...@lists.febo.com] On Behalf Of xaos
Sent: Thursday, September 10, 2020 7:44 PM
To: time-nuts@lists.febo.com
Subject: Re: [time-nuts] Some FTS1000 questions
As usual, Dr. Griffiths has provided all we need.
Back in 2007 I had a similar issue and he worked out this very nice circuit
using easy to find 2N3904
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Jamaica cell: +1-876-456-8898
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of xaos
Sent: Thursday, September 10, 2020 7:44 PM
To: time-nuts@lists.febo.com
Subject: Re: [time-nuts] Some FTS1000 questions
As usual, Dr. Griffiths
Thanks to Bruce and George.
The NIST doubler is indeed what I planned to use, or a Minicircuits AK-2.
What voltage do you guys measure on the oven monitor output? I am not sure
whether this is really 10mV/K. Mine outputs some 4 volts, that would mean
oven is >100°C which I don't believe.
BR
As usual, Dr. Griffiths has provided all we need.
Back in 2007 I had a similar issue and he worked out this very nice circuit
using easy to find 2N3904 BJTs.
I simulated the circuit using PSPICE. Here are the details.
https://www.darksmile.net/ee/frequency_doubler_BJT.html
George
On
You could use either the NIST CG JFET doubler or its bipolar CB equivalent.
Bruce
> On 11 September 2020 at 08:43 Tobias Pluess wrote:
>
>
> Dear colleagues
>
> I recently got a FTS1000 oscillator. (Not FTS1000A or B, but just FTS1000,
> I assume it is the first version). It is a very nice
Dear colleagues
I recently got a FTS1000 oscillator. (Not FTS1000A or B, but just FTS1000,
I assume it is the first version). It is a very nice unit, but I wanted to
know a bit more about its construction and opened it.
After I had replaced the foam which was already quite dissolved, I began
