circuit

circuit

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• The 4X4 Slimtenna - Eli Kovo - 4X4LH
  
  Development of the Slim Jim antenna for HF
  [ Hits: 1383 | Votes: 0 | Rating: 0 ]

• Variacs - Variable Autotransformer - Roy Schahrer
  
  Use these Variac auto transformers for specific application requirements that include but are not limited ...
  [ Hits: 337 | Votes: 0 | Rating: 0 ]

• SB-220 Repairs and Modifications
  
  Heathkit SB 220 mods replacing the Zener ZD1 replacing the plate voltage voltage divider adding ...
  [ Hits: 913 | Votes: 1 | Rating: 10 ]

• idealCircuit - Alexei Smirnov
  
  IdealCircuit is an analog circuit simulator working with true ideal components It uses exactly the ...
  [ Hits: 465 | Votes: 0 | Rating: 0 ]

• Integrated Circuit Audio Amplifiers
  
  Circuit designs for IC audio amplifiers by N1HFX
  [ Hits: 422 | Votes: 0 | Rating: 0 ]
• Design Guidelines for JFET Audio Preamplifier Circuits
  
  Design Guidelines for JFET Audio Preamplifier Circuits By Mike Martell N1HFX
  [ Hits: 647 | Votes: 4 | Rating: 1 ]

• Adjustable Regulated Battery Charger
  
  This battery charger circuit is regulated and adjustable to make this circuit able to charge ...
  [ Hits: 350 | Votes: 0 | Rating: 0 ]
• A NiCAD Battery Charger
  
  A NiCAD Battery Charger with Current and Voltage Limiting
  [ Hits: 476 | Votes: 0 | Rating: 0 ]

• RF Dummy Load
  
  The use of dummy load is mandatory for off air adjustment of the transmitters Build ...
  [ Hits: 844 | Votes: 2 | Rating: 9 ]

• Noise Bridge Tuner Tuner
  
  Noise bridge circuit to tune your tuner
  [ Hits: 373 | Votes: 1 | Rating: 10 ]
• About Cavity Filters
  
  Cavity filters are tipically circuitry behind a duplexer that allow only certain frequencies to pass ...
  [ Hits: 472 | Votes: 3 | Rating: 5.33 ]

• RF Sampler
  
  This circuit will let you look at the signal and frequency output of your transceiver ...
  [ Hits: 722 | Votes: 1 | Rating: 10 ]

• QLF Filter
  
  Microprocessor based interface designed receives a signal from a Morse key processes it and re ...
  [ Hits: 373 | Votes: 0 | Rating: 0 ]
• A low cost morse Trainer / Keyer
  
  By Prof. T. K. Mani - VU2ITI
  [ Hits: 1171 | Votes: 1 | Rating: 10 ]

• 144 MHz Very Low Noise Preamplifier - HA8ET
  
  An home made low noise preamplifier project for 144 MHz with detailed circuit diagram The ...
  [ Hits: 428 | Votes: 2 | Rating: 10 ]

• Circuit Improvements for the TS-440S
  
  Some improvements for the Kenwood TS 440S including distortion level in SSB in transmitted signals ...
  [ Hits: 621 | Votes: 2 | Rating: 5 ]

• 30 m Band Direct Conversion Receiver
  
  The direct conversion receiver described consists of only a bandpass filter mixer IC VFO and ...
  [ Hits: 769 | Votes: 1 | Rating: 4 ]

• Grip Dip Oscillator
  
  Originally eveloped by I1FLC uses seven plug in coils covering 3 0 to 30Mhz in ...
  [ Hits: 667 | Votes: 1 | Rating: 10 ]

• Build a Test Meter
  
  This article include a circuit that allows a cheap 0 1mA meter to be used ...
  [ Hits: 258 | Votes: 0 | Rating: 0 ]

• Vacuum Tubes
  
  Vacuum Tubes History, Theory, and Circuits
  [ Hits: 490 | Votes: 2 | Rating: 4.5 ]

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