single 813 G2DAF RF amplifier
#RF amplifier
#813 tube
#G2DAF
#high frequency
#transmitter
#vacuum tube
#RF power
#ham radio
#amplification
#HF amplifier
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High Frequency Switch
This is a high-frequency switch circuit. This circuit utilizes the 2N4391 transistor. When in the off state, it provides a high off-impedance of less than 0.2 pF and exhibits a low on-resistance.
The high-frequency switch circuit designed with the 2N4391 transistor...
tv power amplifier schematic
TV RF Power Amplifier 14W. This RF power amplifier operates within the frequency range of 470 - 860 MHz, covering UHF Band IV and V, and delivers an output power of 14 Watts with an input power of 1.5 Watts....
The 125 Vacuum Tube Pitch Theremin
The circuit operates using AC mains voltage and other high voltages that pose risks of injury or death. The 125 employs a basic heterodyne configuration, where the outputs of two similar radio-frequency Colpitts oscillators are fed into a mixer, generating...
Vacuum Tube 80-40M Transmitter Circuit
The transmitter utilizes a 6BW6 vacuum tube to achieve an output power of approximately 5 watts. The circuit includes a component CI that is calibrated to produce the cleanest continuous wave (CW) note. The tuning capacitors C8 and C9 have...
Carrier-current-audio-transmitter
The choice between AM, narrowband FM (less than 15 kHz), or wideband FM (greater than 30 kHz) is determined by the specific application. FM is preferable for music transmission due to its superior noise immunity. For speech or other non-critical...
Altec 1566 vacuum tube mic preamp and direct box
V1 and V2 are 12AX7 dual triodes. Each half of V1 is configured as a Class A voltage amplifier in a Common Cathode arrangement. In contrast, both halves of V2 are connected in a Cathode Follower configuration to provide current...
1W Linear FM Booster
That RF Amplifier is for boosting small fm transmitters and bugs. It uses two Philips 2N4427 and its power is about 1 Watt. At the output, you can drive any linear with BGY133 or BLY87 and so on. Its power...
RF amplifier and filter for 70 MHz
The RF amplifier utilizes noiseless feedback via the drain-gate capacitance, incorporating an inductor in the source lead to achieve the required 90-degree phase shift between the gate voltage and channel current.
The RF amplifier is designed to enhance signal strength while...
2-30Mhz-amplifier
This amplifier delivers a nominal output power of 140 watts peak envelope power (PEP) when fed with input levels as low as 3 watts. Both the input and output transformers feature a 4:1 turn ratio and a 16:1 impedance ratio,...