Pedro,
I have a VXO with a 4MHz ceramic resonator. That signal is divided by
8. Range is 500.5 - 506kHz.
see
http://wireless.org.uk/500k_tx.gif
http://wireless.org.uk/qtx.htm
4MHz cer. resonators are available at less than 1 Euro in almost
every electronic shop.
500kHz cer. resonators however could be interesting to build a sharp
RX-input filter (cfr xtal ladder filter)
73, Rik ON7YD - OR7T
At 14:50 15/06/2009, you wrote:
Hello group,
I just discovered that the European grossist for electronic parts has
500 kc ceramic resonators in their range for less than half a Euro.
this is a great building block for a tunable 500 kHz transmitter. I
ordered some for test purposes to see how far they can e pulled.
Unfortunately they don't sell direct to customers, only to retailers.
Pedro
www.nedis.com
| 
