radio, television and electronics works
... modulation AM and FM waveforms and envelopes Percentage of modulation – modulation index and modulation factor Meaning and function of carrier wave in radio communication. Definition and types of demodulation ...
... modulation AM and FM waveforms and envelopes Percentage of modulation – modulation index and modulation factor Meaning and function of carrier wave in radio communication. Definition and types of demodulation ...
Lab 10 - ece.unm.edu
... The common collector amplifier as shown in Figure 10-1 is one of the most useful small-signal amplifier configurations. The same biasing scheme and frequency response approximation technique as used for the common emitter amplifier can also be used for the common collector amplifier. The only change ...
... The common collector amplifier as shown in Figure 10-1 is one of the most useful small-signal amplifier configurations. The same biasing scheme and frequency response approximation technique as used for the common emitter amplifier can also be used for the common collector amplifier. The only change ...
CH 4 - Oscillator_updated
... 2RC 6 where = 1/29 and the phase-shift is 180o For the loop gain A to be greater than unity, the gain of the amplifier stage must be greater than 29. If we measure the phase-shift per RC section, each section would not provide the same phase shift (although the overall phase shift is 180o). ...
... 2RC 6 where = 1/29 and the phase-shift is 180o For the loop gain A to be greater than unity, the gain of the amplifier stage must be greater than 29. If we measure the phase-shift per RC section, each section would not provide the same phase shift (although the overall phase shift is 180o). ...
The 6LE8 One Tube Broadcaster
... Some of the parts can be obtained from Radio Shack (www.radioshack.com) and part numbers are given for those items (even if the part is supplied with the kit). However, equivalent parts from any source will work. The exception is the 6LE8 tube, as the circuit has been tested with various different b ...
... Some of the parts can be obtained from Radio Shack (www.radioshack.com) and part numbers are given for those items (even if the part is supplied with the kit). However, equivalent parts from any source will work. The exception is the 6LE8 tube, as the circuit has been tested with various different b ...
Series and Parallel Circuits
... • The total load (resistance) in a series circuit with “n” loads is the sum of the resistance of the “n” objects. Rtot = R1 + R2 + … + Rn. ...
... • The total load (resistance) in a series circuit with “n” loads is the sum of the resistance of the “n” objects. Rtot = R1 + R2 + … + Rn. ...
Lab 7
... V (t) = V est . Then I(t) = LsV est = Iest . So V = ZL I, where ZL = sL. You can apply the same analysis to a resistance R to obtain V = IR. So for inputs of the form est , circuit components have voltage-current relationships that look like Ohm’s law, except that the impedances are now complex: ZR ...
... V (t) = V est . Then I(t) = LsV est = Iest . So V = ZL I, where ZL = sL. You can apply the same analysis to a resistance R to obtain V = IR. So for inputs of the form est , circuit components have voltage-current relationships that look like Ohm’s law, except that the impedances are now complex: ZR ...
Circuit Defects
... The sum of the branch circuit currents is equal to the total circuit current The voltage drop across each branch circuit is the same The current in each branch circuit is different if the resistance values are different. ...
... The sum of the branch circuit currents is equal to the total circuit current The voltage drop across each branch circuit is the same The current in each branch circuit is different if the resistance values are different. ...
Q.1 What is the lowest positive integer whose Least significant digit
... Q.5 Ckt diag for Xor using only inverters and pass transistors. Q.6 Combinational ckt to output 2’s complement of continuous input stream. Q.7 To find maximum clock periods of four circuit of two cascaded D-f/fs having different directions of clock and different position of buffers for delay. Also t ...
... Q.5 Ckt diag for Xor using only inverters and pass transistors. Q.6 Combinational ckt to output 2’s complement of continuous input stream. Q.7 To find maximum clock periods of four circuit of two cascaded D-f/fs having different directions of clock and different position of buffers for delay. Also t ...
bass extension for surround sound
... that need some boosting of the bass frequencies but where an additional subwoofer cannot be afforded. It is based on a disused mono a.f. amplifier and loudspeaker. If these provide reasonable bass performance, they can be conK4 ...
... that need some boosting of the bass frequencies but where an additional subwoofer cannot be afforded. It is based on a disused mono a.f. amplifier and loudspeaker. If these provide reasonable bass performance, they can be conK4 ...
TDA2009A - Micropik
... Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by ...
... Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by ...
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.