在电子电路中,经常会遇到调谐回路.但一般看到的都是高频调谐回路,很少看到音频调谐回路.这倒并不是电路中不需要低频调谐回路,而是制作音频调谐回路时,需要用大的电感器和大容量的可变电容器.现在能见到的大容量可变电容器有CB-2-1100型空气双连可变电容器,两组并联使用最大容量也不过2200微微法.如果谐振电路的谐振频 In the electronic circuit, often encounter the tuning circuit.But generally see are high-frequency tuning circuit, rarely see the audio tuning circuit.This is not the circuit does not require low-frequency tuning circuit, but the production of audio tuning circuit When you need to use large inductors and large capacity variable capacitors can now see large-capacity variable capacitor CB-2-1100 air double variable capacitor, the maximum capacity of two parallel use but also 2200 pico Law. If the resonance frequency of the resonant circuit