Get the most sound from your small speaker NXP audio system TFA9887
... sophisticated embedded algorithm to maximize the audio signal. It provides accurate measurements of voice-coil temperature, membrane excursion, and amplifier clipping. The algorithm also monitors the integrated DC-to-DC converter to ensure the best sound quality even when the battery is near the end ...
... sophisticated embedded algorithm to maximize the audio signal. It provides accurate measurements of voice-coil temperature, membrane excursion, and amplifier clipping. The algorithm also monitors the integrated DC-to-DC converter to ensure the best sound quality even when the battery is near the end ...
Review:
... the transistor, then ordinarily no current flows BUT there are now additional holes at the junction to travel toward point 2 and electrons can travel to point 1, so that a current can flow. It can be shown that most of the current flows between points 1 and 2. In fact the amplitude (magnitude) of th ...
... the transistor, then ordinarily no current flows BUT there are now additional holes at the junction to travel toward point 2 and electrons can travel to point 1, so that a current can flow. It can be shown that most of the current flows between points 1 and 2. In fact the amplitude (magnitude) of th ...
PUNCH – 1 W guitar amplifier
... What about the speaker? The guys from ROG say What speakers do you recommend for use with your mini-amp circuits? While the Ruby, Little Gem, and Little Gem MkII practice amps can be used with any speakers, best results are achieved with full-size speakers intended for use with guitar amps. The amps ...
... What about the speaker? The guys from ROG say What speakers do you recommend for use with your mini-amp circuits? While the Ruby, Little Gem, and Little Gem MkII practice amps can be used with any speakers, best results are achieved with full-size speakers intended for use with guitar amps. The amps ...
Lecture-3: Transistors - Dr. Imtiaz Hussain
... flows through both junctions only due to thermally produced minority carriers and surface leakage. ...
... flows through both junctions only due to thermally produced minority carriers and surface leakage. ...
Controlling PTT Using an RS
... 1. Connect pin 5 of the RS-232 port to pin 2 of the 4N33 chip. This is the computer ground. 2. Connect the common terminal of the switch or jumper through the 1.2K resistor to pin 1 of the 4N33 chip. This will either be the RTS (request to send) or the DTR (data terminal ready) output of the RS-232 ...
... 1. Connect pin 5 of the RS-232 port to pin 2 of the 4N33 chip. This is the computer ground. 2. Connect the common terminal of the switch or jumper through the 1.2K resistor to pin 1 of the 4N33 chip. This will either be the RTS (request to send) or the DTR (data terminal ready) output of the RS-232 ...
ga-15 - Gibson
... As the name implies, this switches the amplifier from OFF to STANDBY mode, where only the valve heaters are on, to ON for actual use. This should be used correctly every time the unit is used to prevent problems with valves and increase their life. Before mains is applied to the unit, check that it ...
... As the name implies, this switches the amplifier from OFF to STANDBY mode, where only the valve heaters are on, to ON for actual use. This should be used correctly every time the unit is used to prevent problems with valves and increase their life. Before mains is applied to the unit, check that it ...
AM Receiver - Profe Saul
... The 120k resistor provides regenerative feedback,between Q2 output and the tank circuit input and its value affects the overall performance of the whole circuit. Too much feedback and the circuit will become unstable producing a "howling sound". Insufficient feedback and the receiver becomes "deaf". ...
... The 120k resistor provides regenerative feedback,between Q2 output and the tank circuit input and its value affects the overall performance of the whole circuit. Too much feedback and the circuit will become unstable producing a "howling sound". Insufficient feedback and the receiver becomes "deaf". ...
Study of Amplitude Modulation Transmitter
... AM radio communication, a continuous wave radiofrequency signal (a sinusoidal carrier wave) has its amplitude modulated by an audio waveform before transmission. The audio waveform modifies the amplitude of the carrier wave and determines the envelope of the waveform. In the frequency domain, amplit ...
... AM radio communication, a continuous wave radiofrequency signal (a sinusoidal carrier wave) has its amplitude modulated by an audio waveform before transmission. The audio waveform modifies the amplitude of the carrier wave and determines the envelope of the waveform. In the frequency domain, amplit ...
User review of the IC-703+
... I installed an FL-53A narrow CW filter, which really makes this little radio shine as a CW QRP rig. Copy with the filter is just beautiful, there is virtually no ringing as one would normally expect with such a narrow filter. You can work weaker stations right next to big strong stations with this f ...
... I installed an FL-53A narrow CW filter, which really makes this little radio shine as a CW QRP rig. Copy with the filter is just beautiful, there is virtually no ringing as one would normally expect with such a narrow filter. You can work weaker stations right next to big strong stations with this f ...
Project 1
... EE1000 Project 1 Crystal Radio Overview In this project, we build an AM crystal radio using a homemade capacitor and inductor. Crystal radios often use earphones, which is convenient since they don’t require a power source. Design The crystal radio can be illustrated as shown in Figure 1. The resona ...
... EE1000 Project 1 Crystal Radio Overview In this project, we build an AM crystal radio using a homemade capacitor and inductor. Crystal radios often use earphones, which is convenient since they don’t require a power source. Design The crystal radio can be illustrated as shown in Figure 1. The resona ...
August - DVHRC
... Another idea for keeping the old weak 6XX tube in place and not tearing into the filament circuit is to use a source of B+ supply for the tube that is higher than what is normally supplied. Look for this higher voltage at the audio output screen grid, or even directly from the cathode of the power s ...
... Another idea for keeping the old weak 6XX tube in place and not tearing into the filament circuit is to use a source of B+ supply for the tube that is higher than what is normally supplied. Look for this higher voltage at the audio output screen grid, or even directly from the cathode of the power s ...
HVRA Basic Electronics Class I April 2015
... and how to apply it in repairing, modifying, and in some instances designing circuitry. In dealing with vacuum tube electronics, the first thing that comes to mind is vintage radios. Vintage radios bring back nostalgic memories of bygone years and many have beautiful enclosures made of wood or art d ...
... and how to apply it in repairing, modifying, and in some instances designing circuitry. In dealing with vacuum tube electronics, the first thing that comes to mind is vintage radios. Vintage radios bring back nostalgic memories of bygone years and many have beautiful enclosures made of wood or art d ...
The VDV-6AS7 (The Maurits)
... higher input sensitivity, which may be useful for the amplification of low-level signals, such as older tuners and tape-recorders. On the other hand, the circuit from diagram 1 will accomodate larger signals – around 2 Veff – as generated by present day CD players. Now on to the power tube section. ...
... higher input sensitivity, which may be useful for the amplification of low-level signals, such as older tuners and tape-recorders. On the other hand, the circuit from diagram 1 will accomodate larger signals – around 2 Veff – as generated by present day CD players. Now on to the power tube section. ...
Repeater cable version 2
... timeout timer is a government requirement that may prevent the transmitter from staying on the air in case of a system failure. With some radio models when the RX radio is turned off, the COR line will go low causing the transmitting radio to key up. The timeout timer turns of the transmitter when t ...
... timeout timer is a government requirement that may prevent the transmitter from staying on the air in case of a system failure. With some radio models when the RX radio is turned off, the COR line will go low causing the transmitting radio to key up. The timeout timer turns of the transmitter when t ...
EET-223-ANALOG ELECTRONICS
... If the output of an amplifier is not a complete AC sine wave, then it is distorting the output. The amplifier is non-linear. This distortion can be analyzed using Fourier analysis. In Fourier analysis, any distorted periodic waveform can be ...
... If the output of an amplifier is not a complete AC sine wave, then it is distorting the output. The amplifier is non-linear. This distortion can be analyzed using Fourier analysis. In Fourier analysis, any distorted periodic waveform can be ...
IC-2300H
... IC-2200H 2 meter FM radio, which in turn was the successor to its IC2100 model. I’ve owned and operated the IC-2200H for several years now. It has been my main radio for FM voice, repeater and D-STAR applications. I have had nothing but excellent performance from it after figuring out some nuances f ...
... IC-2200H 2 meter FM radio, which in turn was the successor to its IC2100 model. I’ve owned and operated the IC-2200H for several years now. It has been my main radio for FM voice, repeater and D-STAR applications. I have had nothing but excellent performance from it after figuring out some nuances f ...
audio amplifier - Kaushik Science Projects
... This is a very useful and simple circuit diagram for amplifying weak signal from a capacitive condenser microphone. You can use this circuit for sound sensing applications and some automatic robotic sensors. We have already posted an efficient audio amplifier circuit using 6283 IC, it is somewhat co ...
... This is a very useful and simple circuit diagram for amplifying weak signal from a capacitive condenser microphone. You can use this circuit for sound sensing applications and some automatic robotic sensors. We have already posted an efficient audio amplifier circuit using 6283 IC, it is somewhat co ...
A 1920s Style Colpitts Broadcast Receiver
... external 10 pF coupling capacitor, and no ground connection, the tuning range is 530–1010 kHz with the full inductance of L1 switched in, and 1007–1743 kHz with the tap on L1 switched in. Actual frequency coverage varies depending on antenna length and coupling capacitance. Volume is more than adequ ...
... external 10 pF coupling capacitor, and no ground connection, the tuning range is 530–1010 kHz with the full inductance of L1 switched in, and 1007–1743 kHz with the tap on L1 switched in. Actual frequency coverage varies depending on antenna length and coupling capacitance. Volume is more than adequ ...
Transistor Hybrid model:-
... Transistor Hybrid model:Use of h – parameters to describe a transistor have the following advantages. 1. h – parameters are real numbers up to radio frequencies . 2. They are easy to measure 3. They can be determined from the transistor static characteristics curves. 4. They are convenient to use in ...
... Transistor Hybrid model:Use of h – parameters to describe a transistor have the following advantages. 1. h – parameters are real numbers up to radio frequencies . 2. They are easy to measure 3. They can be determined from the transistor static characteristics curves. 4. They are convenient to use in ...
Bipolar transistors II, Page 1 Bipolar Transistors II
... The output should be about 5 volts. “NC” means no connections to the center tap on the transformer. Plot I vs. V for this supply by loading it. Note: The zener-regulated pass transistor developed in this lab is an acceptable source of stable voltage to be used when circumstances are not demanding. T ...
... The output should be about 5 volts. “NC” means no connections to the center tap on the transformer. Plot I vs. V for this supply by loading it. Note: The zener-regulated pass transistor developed in this lab is an acceptable source of stable voltage to be used when circumstances are not demanding. T ...
SRM-007t
... 6FQ7/6CG7 provides significantly improved dynamics and transparency. ■ BALANCED CIRCUIT WITH FIRST STAGE LOW NOISE DUAL FET The SRM-007t features a pure balanced circuit with no transformer or inverting amplifier in the signal path. A high quality 4 - Gang volume control is used for the XLR balanced ...
... 6FQ7/6CG7 provides significantly improved dynamics and transparency. ■ BALANCED CIRCUIT WITH FIRST STAGE LOW NOISE DUAL FET The SRM-007t features a pure balanced circuit with no transformer or inverting amplifier in the signal path. A high quality 4 - Gang volume control is used for the XLR balanced ...
BA5417 - Kitsrus
... The BA5417 is a 6 to 15V-compatible dual power amplifier developed for use radio cassette players. It is equipped with standby switching functions for excellent total harmonic distortion and other basic characteristics. Applications Radio cassette players Features 1) High output. POUT = 2.8W (VCC ...
... The BA5417 is a 6 to 15V-compatible dual power amplifier developed for use radio cassette players. It is equipped with standby switching functions for excellent total harmonic distortion and other basic characteristics. Applications Radio cassette players Features 1) High output. POUT = 2.8W (VCC ...
Technician Study Sheet Instructions
... Radio Functions This section refers to actual knobs and buttons on an amateur radio (and many others). Up/Down buttons on the radio or microphone allow tuning different frequencies or memory channels. Shift allows changing the transmit and receive frequencies for working through repeaters. The Noise ...
... Radio Functions This section refers to actual knobs and buttons on an amateur radio (and many others). Up/Down buttons on the radio or microphone allow tuning different frequencies or memory channels. Shift allows changing the transmit and receive frequencies for working through repeaters. The Noise ...
Antique radio
An antique radio is a radio receiving set that is collectible because of its age and rarity. Although collectors may differ on the cutoff dates, most would use 50 years old, or the pre-World War II Era, for vacuum tube sets and the first five years of transistor sets.