Dear Hans,
Nice website with great designs Hans.
I intend to build a huff-and-puff circuit (design by om Spaargaren
PA0KSB) when i do not get sufficient stability from the circuit as
shown in the original bitx circuitry.
Do you know if succesful qso's have been made with digimodes (psk31,
rtty) using the bitx (without huff & puff circuit).
Regards es 73 de Ron
pa2rf
--- In BITX20@..., Hans Summers <Hans.Summers@t...> wrote:
Ron
In case you are not aware of my very simple Huff & Puff VFO
stabiliser
designs, you can read about them here:
<> .
The
2-chip design uses common and cheap IC's 74HC4060 and 74HC74, an
ordinary
32.768KHz watch crystal, and a 5mm red LED for tuning. This design
works
well and has been successfully replicated by at least 5 different
constructors.
73 Hans G0UPL
] Stability?
