[ARC5] Butler/Xtal Oscillator [Was - 1 MHZ Success]

[Leslie Smith]

Hello Wayne,
 
At the moment I'm building a GP oscillator (xtal controlled).
It's the Butler circuit I sent some days ago.
Two transistor, 50kHz to 10MHz (according to the 'blurb' accompanying
the circuit).
  
I'll write about stability, range, waveform and so on when I have
some results.
In particular I want to know if this 2-transistor Butler oscillator
followed by a 4040 divider is more precise (in terms of accuracy) than a
4060 oscillator-divider chip.
 
As for the 1MHz modules you mentioned - I have some of those.
Never tickled their power pins with voltage; they were so cheap and
appeared so useful I couldn't resist buying a few.
HC-49U crystals are cheap at the moment.
 
73 de Les Smith
vk2bcu at operamail.com
 
 
 
On Sun, Jun 19, 2016, at 03:03, Robert  Eleazer wrote:
> I decided to see if I could replace the 1 MHZ calibrator module in my
> SG-297 with a 7805 regulator powering a 1 MHZ TTL oscillator.  Despite
> having wired it wrong the first time, I eventually got it to work on
> the bench (with a weird but stable signal on the scope at 1.000062
> MHZ).  Then I plugged it into the SG-297.  And it works.  The 1 MHZ
> oscillator feeds a harmonic oscillator to produce signals every 1 MHZ
> across the range of the instrument, so I guess that approach tames the
> TTL waveform a bit.
>
> Wayne
> WB5WSV
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