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AM Receiver Circuits
Last Updated on:
Friday, March 23, 2012 04:33 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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AM Receiver - This is a compact three transistor,
regenerative receiver with fixed feedback. It is similar in principle
to the ZN414 radio IC which is now replaced by the MK484. The design
is simple and sensitivity and selectivity of the receiver are good….
[Design by Andy Collison] |
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AM Receiver for Aircraft Communications - This receiver is
controlled by a Frequency Synthesizer Circuit. The receiver is
VERY stable, low noise-level and easy to build and tune… |
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AM Receiver with Quadrature Mixer - This circuit is for a
superheterodyne receiver where the image frequency is suppressed
without the use of an input filter. Instead, it uses two NE(SA)612
type mixer ICs that each work 90….must register on this site...
[Published in Elecktor July/August 2010] |
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AM-Receiver for Aircraft Communication 118.250MHz -
(electronic circuit added 4/05) |
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Automicro RX3302 receiver module photo - ….(Circuit design
added 04/09) [Peter Jakab, Electrical Engineer, Engineer of
Informatics] |
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Automicro RX3304 receiver module schematic - ….(design added 04/09) [Peter
Jakab, Electrical Engineer, Engineer of Informatics] |
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BCB Receiver without Coils - The radio consists of two phase-shifting transistor
stages (T1 and T2) and a RF amplifier (T3). The gain of T1 is almost one (R4/R5). Phase
shift of this stage is 90 degrees at a frequency determined by P2 and C4. The second stage
(T2) is identical to the first; the frequency of 90 degrees phase shift …(electroninc
design added 04/05/06) |
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Build a simple crystal set |
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Designing an AM Receiver For Low Power Wireless Systems Using the NEC UPC2768GR IC 7/22/96
- Application Note California Eastern Laboratories Doc #921 (app note
added 6/06) |
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High quality AM through your FM stereo - amateur radio construction projects….
[from Peter Parker's website] |
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More crystal sets - Response to December's column was so favourable that we
return to crystal sets and allied topics this month. Keep reading to find out
how to improve your AM broadcast reception, make your crystal set deliver hi-fi audio and
set a fashion trend with the all-new 'wearable wireless' pedestrian mobile crystal
set...amateur radio construction projects…. [from Peter Parker's website] |
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One-transistor Regenerative AM Receiver - A classic design revamped slightly.
Features a single-transistor regen stage, and a range of 1000 miles with a 4-foot antenna.
Perhaps the best "survival radio", yet. Now updated with speaker amplifier. (Circuit
design added 7/06) |
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Shortwave Audion - It is a Hartley-ECO Audion, in which the plate is grounded
for RF. Positive feedback from cathode to grid occurs via the coil tap. The amount of
feedback is determined by the 100k pot; this controls the voltage at the screen grid and
thereby the transconductance of the valve (higher voltage resulting in greater
transconductance). …(schematic added 06/07/08) |
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The Moorabbin regenerative AM receiver - amateur radio construction projects….
[from Peter Parker's website] |
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ZN414 Portable AM Receiver - An AM portable radio receiver made from the ZN414
IC. The ZN414 ic has now been replaced by the MK484 which is identical in performance and
pinout. (added 10/05) |
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