-40%
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)
Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)

Schematic Only Dual 815 Regen Receiver AM/Shortwave (540 khz to 19.0 mhz)

$ 12.14

Availability: 12 in stock
  • Condition: New

    Description

    *******Schematic only of this radio, with parts values.********
    THIS IS A SCHEMATIC ONLY. NO CONSTRUCTION MANUAL IS INCLUDED, BUT YOU'LL HAVE ALL THE COIL DATA, AND PARTS IDENTIFICATION.
    BUILT WITH DUAL 815 TRANSMITTER TUBES,
    THIS VERSION HAS A 4 TO 16 OHM SPEAKER OUTPUT, WHICH CAN ALSO BE USED FOR LOW IMPEDANCE HEADPHONES. IT HAS A VOLUME CONTROL, AS WELL AS A JACK FOR HIGH IMPEDANCE, 2 TO 4K OHM HEADPHONES.
    YOU'LL NEED TWO DC POWER SUPPLIES TO RUN THIS RADIO. ONE SOURCE OF 25 VOLTS DC (1 AMP) FOR THE SERIES WIRED FILAMENTS, PLUS AND ANOTHER POWER SUPPLY IN THE 25 TO 100 VOLTS RANGE TO POWER THE 815 AUDIO AMPLIFIER. HIGHER VOLTAGES WILL, OF COURSE, PROVIDE MORE AUDIO, AND ON STRONG STATIONS THE OUTPUT WILL EVEN PROVIDE SPEAKER VOLUME.
    I ALWAYS TRY TO USE BATTERIES TO POWER THE FILAMENT AND REGEN SECTIONS OF MY RADIOS, FOR A CLEANER SIGNAL. BUT A DC BENCH POWER SUPPLIES WILL ALSO WORK WELL, IF WELL FILTERED.
    YOU'LL NEED A WIRE ANTENNA OF AT LEAST 25 TO 50FT IN LENGTH, ALONG WITH A GOOD EARTH GROUND. A 75 TO 100 LENGTH ANTENNA WILL PERFORM BEST ON THE LOWER FREQUENCIES. AS STATED, AN ANTENNA COUPLING CONTROL IS PROVIDED FOR ADJUSTING TO DIFFERENT ANTENNA LENGTHS.
    I GUARANTEE THIS RADIO WILL WORK IF PROPERLY CONSTRUCTED FROM MY SCHEMATIC.