2022年4月27日 · Ultimate Guide: Building a Powerful 2.5KM FM Transmitter with 2N3866 Transistor and PCB. This is a simple FM transmitter, with great range, being able to reach more than 2.5 km of distance, using a suitable antenna, powered by a power supply or a 12Vdc battery.

2020年2月1日 · Utilize transistors like 2N3866, 2N3553, KT920A, 2N3375, 2SC1970 or 2SC1971 should you wish to produce a professional fm transmitter with ample power to take care of an extended spectrum zone. Should you use 2N2219 you will definitely get a maximum of 400mW. Make use of an effective heatsink for the T5 transistor because it becomes slightly warm.

Use a heat-sink with transistor 2N3866 for heat dissipation. Adjust trimmer carefully with the non-metal screwdriver VC1 connected across L1 to generate frequency within 88-108 MHz. Also, adjust trimmers VC2 through VC7 to get maximum output at maximum range. You can also use transistor 2N5109 in place of 2N2219.

2012年12月4日 · The transmitter circuit described here has an extra RF power amplifier stage using 2N3866 RF power transistor after the oscillator stage to increase output power to 250 milliwatts. With a good matching 50-ohm ground plane antenna or multi-element Yagi antenna, this transmitter can provide reasonably good signal strength up to a distance of ...

2010年7月7日 · This FM transmitter circuit uses four radio frequency stages: a VHF oscillator built around transistor BF494 (T1), a preamplifier built around transistor BF200 (T2), a driver built around transistor 2N2219 (T3) and a power amplifier built around transistor 2N3866 (T4).

Part #: 2N3866. Download. File Size: 331Kbytes. Page: 5 Pages. Description: RF & MICROWAVE DISCRETE LOW POWER TRANSISTORS. Manufacturer: Microsemi Corporation.

2020年4月21日 · The circuit diagram of the 96MHz crystal-locked simple FM transmitter is shown in Fig. 1. The circuit is built around a low-power audio amplifier using LM386 (IC1), transistors 2N3904 (T1 and T2) and 2N3866 (T3), 24MHz crystals (XTAL1 and XTAL2), rectifier diode IN4007 (D1), signal diode IN4148 (D2) and a few other components.

The transmitter circuit described here has an extra RF power amplifier stage using 2N3866 RF power transistor after the oscillator stage to increase output power to 250 milliwatts. With a good matching 50-ohm ground plane antenna or multi-element Yagi antenna, this transmitter can provide reasonably good signal strength up to a distance of ...

The transmitter circuit described here has an extra RF power amplifier stage using 2N3866 RF power transistor after the oscillator stage to increase output power to 250 milliwatts. With a good matching 50-ohm ground plane antenna or multi-element Yagi antenna, this transmitter can provide reasonably good signal strength up to a distance of ...

2011年5月20日 · Transistor T2 (2N3866) forms a VHF-class A power amplifier. It boosts the oscillator signal power four to five times. Thus, 200-250 milliwatts of power is generated at the collector of transistor T2. Build Accurate LC Meter and start making your own coils and inductors.