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License Free, legal, low-power radio broadcasting

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PDF file Reading Room

Technical reading contributed to the www.PART15.us website.

Installation info from LPB, Inc.

  • Ground Suggestions
  • Campus AM Antenna Systems
  • Carrier Current Broadcasting Theory
  • Carrier Current System Design
  • Neutral Loading Option
  • Carrier Current System Maintenance

250 mW Broadband FM Amplifier

  • Schematic and assembly instructions (sorry, no foil pattern)

Plans and power supply schematic for the AM 100 Part 15 AM Transmitter

  • AM 100 Part 15 AM Transmitter plans, Part 1
  • AM 100 Part 15 AM Transmitter plans, Part 2
  • PS 700 Filtered, Regulated +/- IC power supply plans (Nice PS!)

FCC fiilings for the C. Crane Part 15 PLL FM Transmitter

  • Photographs of the prototype
  • Block diagram of the prototype
  • Schematic of the prototype

More…
Datasheet Repositories

  • chipcatalog.com
  • partminer.com
  • datasheetarchive.com
  • alldatasheets.com
  • chipdocs.com
  • datasheets4u
  • datasheetcatalog.com
  • datasheets.org.uk

PUBLICITY

  • How to write a news release.
  • Rate your Advertising I.Q.
  • 39 ways to get publicity for your station

BEGINNING ELECTRONICS

  • Symbols used in schematic drawings
  • Milli, Micro, Nano, Pico – Scientific Notation for Electronics
  • Basic information about Resistors
  • A short article about Capacitors, with some code info
  • Short article about Diodes
  • Oscillators and basic circuits
  • Basic information about inductance and coils
  • How to wind coils on Torriod Cores (critical for ANT match!)
  • Using Transformers in Electronics
  • Brief Article about Transistors
  • Basic Circuits – Components in Series and Parallel

DATASHEETS AND APP NOTES

  • Data sheet for the World’s most common transistor – the 2N2222
  • Data sheet on the TIP31/32 transistors
  • Data sheet on the Dual 555, AKA the 556 Timer chip
  • The LM 386 Audio Amplifier
  • The LM 383 Audio Amplifier
  • The LM 380 Audio Amplifier
  • The LM 380 Audio Amplifier APP NOTES
  • Working, real circuits for the LM386, LM383, LM380 & LM380-8
  • 74LS15 AND Gate
  • MC2833 Narrow band FM transmitter on a chip
  • IRF510 family of N-Channel Power MOSFETs
  • MAX2472 500MHz to 2500MHz VCO Buffer Amplifiers

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