Technical Topics > The RF Workbench
New 850mW HF beacon,
QRP:
Try putting the diode in series with the crystal against earth instead. 👍
Teotwaki:
--- Quote from: QRP on February 06, 2022, 1643 UTC ---Try putting the diode in series with the crystal against earth instead. 👍
--- End quote ---
That is meant to be a ground symbol. It’s not a series diode.
QRP:
Try putting the diode in series with the crystal I this way:
---diod---xtal---earth
Did you get it? 😄
Teotwaki:
--- Quote from: QRP on February 06, 2022, 1710 UTC ---Try putting the diode in series with the crystal I this way:
---diod---xtal---earth
Did you get it? 😄
--- End quote ---
What diode are you talking about? in the original diagram the crystal is connected between the base of the transistor and ground ( also means earth). In eleven places on the diagram the upside down triangle is a ground symbol. The only diodes present are the D2 & D3 to rectify the RF and D1 the LED.
QRP:
Have a close look att the Xtal 7030 MHz
and between XTAL and earth there is a diode.
Can you see it now? 😊
See figure in this link:
https://ham.se/attachments/diod-png.7738/
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