I want to build a stable FM modulated transmitter and receiver with a VCO controlled with a PLL (some new concepts I am learning and quite excited about).
My issue is all the VCO circuits I have read about use a varactor (which makes sense). My issue is that Jameco (where I usually get my parts) doesn't seem to have varactors and I don't know where else to buy them.
So are there any VCO designs that don't require them or, better yet, can someone tell me where to get my hands on some varactors?
Thanks!
My issue is all the VCO circuits I have read about use a varactor (which makes sense). My issue is that Jameco (where I usually get my parts) doesn't seem to have varactors and I don't know where else to buy them.
So are there any VCO designs that don't require them or, better yet, can someone tell me where to get my hands on some varactors?
Thanks!