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Modern Radio Receiver Architecture From Regenerative To Direct Conversion Hackaday
The more I looked at it the more regenerative receiver --- regenerative receiver kept popping into my head.
. This radio kit will cover the AM radio band along with the SW radio band. A direct-conversion receiver DCR also known as homodyne synchrodyne or zero-IF receiver is a radio receiver design that demodulates the incoming radio signal using synchronous detection driven by a local oscillator whose frequency is identical to or very close to the carrier frequency of the intended signal. This is in contrast to the standard superheterodyne receiver where this is.
This is little better and more stable design of a battery operated Regen for 160m to 20m using common 15V and 9V batteries. This is the first receiver kit I built back in 1955. Power for this receiver is 15 V DC for the filaments and 45V DC for the plate current.
I also considered building a direct conversion radio but the fact is a regenerative receiver can easily be used as a direct conversion detector simply by turning up the regeneration. A regenerative detector is much more robust than any dual gate FET mixer it is very sensitive. Requires two T-1T4_DF91 tubes not included.
A Battery Powered Tube Regenerative Receiver Click on A battery Regen. A 2000 ohm headset or an audio amplifier is required. A superheterodyne receiver often shortened to superhet is a type of radio receiver that uses frequency mixing to convert a received signal to a fixed intermediate frequency IF which can be more conveniently processed than the original carrier frequencyIt was long believed to have been invented by US engineer Edwin Armstrong but after some controversy the earliest patent for.
This one is made by K5BCQ Mfg of Austin Texas. A D cell and five 9V transistor batteries wired in series will work to power this radio.
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