Published:2011/12/5 21:14:00 Author:Ecco | Keyword: Zero-drift , operational amplifier
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Published:2011/12/6 0:55:00 Author:Ecco | Keyword: High-voltage, high -current, operational amplifier
Figure (a) shows the methods for zerosetting ; Figure (b)shows the cylindrical package pin-out.
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Published:2011/12/6 0:53:00 Author:Ecco | Keyword: High-voltage , operational amplifier , internal compensation
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Published:2011/12/6 1:19:00 Author:Ecco | Keyword: Non- inverted amplifier
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Published:2011/12/6 1:39:00 Author:Ecco | Keyword: FET input, high-fidelity, operational amplifier
Simplified schematic diagram:
Zero wiring diagram:
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Published:2011/12/1 2:11:00 Author:Ecco | Keyword: Balanced DC amplifier , NPN , PNP
Tr3 and Tr4 can use Darlington transistors.
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Published:2011/12/1 1:57:00 Author:Ecco | Keyword: Integrated, audio power amplifier
LM380 internal equivalent circuit :
LM380 application circuit:
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Published:2011/12/6 1:33:00 Author:Ecco | Keyword: Precision , unity-gain , inverting amplifier
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Published:2011/12/5 21:26:00 Author:Ecco | Keyword: Precision , inverting amplifier
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Published:2011/12/5 21:12:00 Author:Ecco | Keyword: SCR driver amplifier
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Published:2011/11/28 21:37:00 Author:Ecco | Keyword: usb , switching to 232
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Published:2011/11/11 2:17:00 Author:Ecco | Keyword: 6w , FM power amplifier
Assemble by soldering the components to the pads indicated. Keep coil, resistor, and capacitor leads as short as possible. The coils should be 3/16 to 1/4 above the board and separate turns by one wire diameter. Bend leads to form a little mounting foot for soldering to the circuit board. Tuning and power output are affected by the distance between the coil turns, you can make fine adjustments by either spreading or compressing the coil slightly. The area surrounding the pads is ground. C2, C3, C4, C6, C7, C8, C9, C10, L2, and R1 are soldered at one end to ground as well as the shield braid on the coax cables. Bolt Q1 to a small heat sink or the chassis with heat sink thermal compound or gray thermal pad underneath the tab. With an input level of 200-500mw, you should see an output of 5-6 watts. Be sure to have a proper dummy load (50 ohms) or tuned antenna connected to the output, doing otherwise will likely destroy the transistor.
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Published:2011/12/1 1:48:00 Author:Ecco | Keyword: amplifier circuit , extending bandwidth
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Published:2011/12/1 1:46:00 Author:Ecco | Keyword: amplifier circuit , l000V output
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Published:2011/12/1 2:09:00 Author:Ecco | Keyword: Non- reverses, DC amplifier , NPN , PNP
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Published:2011/12/2 1:53:00 Author:Ecco | Keyword: internal circuit , integrated operational amplifier
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Published:2011/12/2 1:51:00 Author:Ecco | Keyword: directly , optical coupling , isolation amplifier
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Published:2011/12/9 1:10:00 Author:Ecco | Keyword: preamp, balanced amplifier, tube
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Published:2011/12/9 1:13:00 Author:Ecco | Keyword: line amplifier , output stage , tube
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Published:2011/12/9 1:05:00 Author:Ecco | Keyword: single-ended , Class A , power amplifier , high-power tube
The power amplifier's total output poweris about 12W. (View)
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