Wideband VHF VCO - Gusberti Analog
2021年5月23日 · In this post we are going to take a look at a simple VCO I designed to accomplish a wide 2:1 tuning ratio, from 30 to 60MHz. Te design is based on a JFET Hartley …
High Frequency VCO Design and Schematics - qsl.net
This note will review the process by which VCO (Voltage Controlled Oscillator) designers choose their oscillator’s topology and devices based on performance requirements, components types …
A 60-MHz Silicon Carbide Voltage-Controlled Oscillator for …
2022年9月20日 · In this brief, a custom-built silicon carbide (SiC) junction field-effect transistor (JFET) is characterized from room temperature to 52°C, and a 60 MHz voltage-controlled …
A high temperature VCO for extreme environment wireless applications
In this paper, a 60 MHz voltage controlled oscillator based on a custom-built silicon carbide (SiC) junction field effect transistor (JFET) is proposed. This SiC VCO is capable of high …
自制音乐合成器指南 - 〓晶体管与集成〓 - 矿石收音机论坛
2023年11月23日 · 2、JFET可以看作是可变电阻，所以可以利用JFET来制作VCO，这种VCO线性度也不高。 3、恒流源+电容，假设一个振荡器充电很慢，放电很快，就可以考虑这种方法来 …
Design, build, and test a voltage-controlled oscillator (VCO). Design VCO for highest center frequency (< 400 MHz). At least 10 MHz tuning range. You will determine the oscillator type …
High performance VCO for VHF air-band transceiver
A new complementary junction field effect transistor (JFET) voltage-controlled oscillator (VCO) is presented for VHF band. The VCO circuit provides almost linear negative differential …
High performance VCO for VHF air-band transceiver
2014年4月1日 · A new complementary junction field effect transistor (JFET) voltage-controlled oscillator (VCO) is presented for VHF band. The VCO circuit provides almost linear negative …
Substituting and matching the JFET's in this VCO circuit - Page 1
2021年10月3日 · Hi, I would like some advice on which JFET's to substitute for the U1994E JFET's and how to match them (Schematic attached mentions matched pair delta Vd less than …
Blue Lantern JFET Saw Core VCO - Perfect Circuit
Blue Lantern's JFET Saw Core VCO is a Jupiter-inspired oscillator with a rich feature set and a huge sound. It offers simultaneous saw and square wave outputs, hard sync, linear and …