Re: LF: RE: Analog oscillators

[John P-G <gm4slv@gmail.com>]

On 05/07/2012 18:38, Rik Strobbe wrote:
> Stefan,
>
> what about a huff&puff oscillator (http://www.hanssummers.com/huffpuff.html) ?
>
> 73, Rik  ON7YD - OR7T
LF,

My first 500kHz TX used a huff/puff VFO and it was very stable - as long 
as the RF pickup in the shack, while on TX, was minimized and the VFO 
and HuffPuff circuit were very well screened - otherwise the HuffPuff 
stabilization was lost during key down, and regained during RX. Still, a 
very nice way to get a VFO stable enough for WSPR without the need for 
DDS etc.
John
GM4SLV