into transmit. There is no need to control the voltage to any other transistors since they all operate class "C". A class C amplifier draws no current unless it is driven, so there is no need to switch the later stages on and off.

FT146 2 METER FM TRANSMITTER KIT PARTS LIST

Capacitors:

❒1 2 or 2.2 pf disc capacitor (marked 2 or 2.2 or 2K or 2.2K) [C17]

❒1 4.7 or 5 pf disc capacitor (marked 4.7 or 5 or 4.7K or 5K) [C21]

❒2 10 pf disc capacitor (marked 10 or 10K) [C19,20]

❒1 12 pf disc capacitor (marked 12 or 12K) [C25]

❒1 15 pf disc capacitor (marked 15 or 15K) [C27]

❒1 22 pf disc capacitor (marked 22 or 22K) [C18]

❒3 39 pf disc capacitor (marked 39 or 39K) [C13,15,28]

❒2 47 pf disc capacitor (marked 47 or 47K) [C10,22]

❒1 56 pf disc capacitor (marked 56 or 56K) [C14]

❒6 100 pf disc capacitor (marked 100 or 101) [C6,11,16,24,26,29]

❒1 470 pf disc capacitor (marked 470 or 471) [C30]

❒13 .001 uf disc capacitor (marked .001 or 1000 or 102) [C7,8,23,31,32,33,37,38,39,40,41,44,45]

❒6 .01 uf disc capacitor (marked .01 or 10 nf or 103) [C1,3,4,5,35,36]

❒1 .1 uf disc capacitor (marked .1 or 104) [C9]

❒2 10 uf electrolytic capacitor [C34,42]

❒1 100 to 220 uf electrolytic capacitor [C2]

❒2 Trimmer capacitor, 30 pf [C12,43]

Resistors and potentiometers:

❒1 2 ohm resistor (red-black-gold) [R6]

❒1 51 ohm resistor (green-brown-black) [R10]

❒1 100 ohm resistor (brown-black-brown) [R28]

❒2 270 ohm resistor (red-violet-brown) [R8,20]

❒2 470 ohm resistor (yellow-violet-brown) [R7,25]

❒7 1 K ohm resistor (brown-black-red) [R1,2,4,9,11,22,29]

❒2 2.2 K ohm resistor (red-red-red) [R21,24]

❒6 10 K ohm resistor (brown-black-orange) [R12,15,16,23,26,27]

❒3 47 K ohm resistor (yellow-violet-orange) [R3,5,17]

❒3 100 K ohm resistor (brown-black-yellow) [R14,18,19]

❒1 5 K ohm potentiometer [R13]

FT146 • 6

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Ramsey Electronics manual FT146 2 Meter FM Transmitter KIT Parts List, Capacitors, Resistors and potentiometers
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FT146 specifications

The Ramsey Electronics FT146 is a versatile and compact FM transmitter that stands out for its user-friendly operation and impressive performance in both amateur and professional audio applications. Designed for hobbyists, educators, and small businesses alike, the FT146 offers a reliable solution for broadcasting audio signals over a short to moderate range.

One of the main features of the FT146 is its simple plug-and-play setup, which allows users to get started quickly without needing extensive technical knowledge. The device operates with a frequency range of 88.1 to 107.9 MHz, covering the entire FM broadcast band. This flexibility enables users to choose the best frequency for minimal interference in their transmission area. Additionally, with an adjustable output power of up to 2 watts, the FT146 can effectively cover distances ranging from a few hundred feet to several miles, making it ideal for a variety of broadcasting scenarios.

The FT146 utilizes advanced modulation technology to ensure high-quality audio transmission. It supports monophonic audio, which is perfect for clear voice and music transmission. The integrated audio limiter prevents distortion, ensuring that the sound quality remains consistent, even at higher volumes or varying audio signals.

Another notable characteristic of the FT146 is its robust construction. Housed in a durable metal enclosure, the transmitter is built to withstand everyday use. The compact design allows for easy portability, making it suitable for field applications, on-location broadcasting, or as a permanent installation in a small venue.

In terms of connectivity, the FT146 features multiple audio input options, including a 3.5mm jack and RCA inputs. This versatility allows users to connect various audio sources, such as MP3 players, computers, or professional-grade audio equipment.

Furthermore, the FT146 also includes an LED power indicator and a built-in antenna output for enhanced transmission efficiency. Users can either connect an external antenna for increased range or utilize the included telescopic antenna for convenience.

Overall, the Ramsey Electronics FT146 combines ease of use with professional-grade features, making it an excellent choice for anyone looking to explore FM broadcasting. Whether for personal projects, educational purposes, or small business promotions, the FT146 delivers reliable performance and adaptability in a compact package.
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