Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Why different NE602 or NE612 Oscillator Circuits?

April 26, 2017circuits different oscillator

0

Posted

Why different NE602 or NE612 Oscillator Circuits?

1 Answer

0

Posted

I’m going to leave the rest to see if anybody actually reads these pages and asks me for some oscillator circuits. This would include both fixed and variable oscillators as well as fixed and variable crystal oscillators – all in the HF region. Note that up in the VHF region it is almost impractical to design variable oscillators, the drift will kill you. I’d recommend using 3rd or 5th overtone oscillators using crystals, see “Figure 9. Typical Application for Cellular Radio” from the 602 mixer PDF data sheet.