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2. Regenerative circuit - Wikipedia

   en.wikipedia.org/wiki/Regenerative_circuit

   Regenerative receivers require fewer components than other types of receiver circuit, such as the TRF and superheterodyne. The circuit's advantage was that it got much more amplification (gain) out of the expensive vacuum tubes , thus reducing the number of tubes required and therefore the cost of a receiver.

3. Talk:Superheterodyne receiver - Wikipedia

   en.wikipedia.org/wiki/Talk:Superheterodyne_receiver

   References ^ "Why it is preferred to have local oscillator frequency larger than carrier frequency in superheterodyne receiver?". electronics.stackexchange.com. Retrieved 4 February 2019. Double tuned Superheterodyne receivers usually contain double tuned circuits (sets of two loosely coupled circuits) as filters in IF receiver - this is because such a filter has almost flat band instead a ...

4. Talk:Regenerative circuit - Wikipedia

   en.wikipedia.org/wiki/Talk:Regenerative_circuit

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

5. Superheterodyne receiver - Wikipedia

   en.wikipedia.org/wiki/Superheterodyne_receiver

   A 5-tube superheterodyne receiver manufactured by Toshiba circa 1955 Superheterodyne transistor radio circuit circa 1975. 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 frequency.

6. Reflex receiver - Wikipedia

   en.wikipedia.org/wiki/Reflex_receiver

   The reflex principle was used in compact superheterodyne radio receivers from the 1930s [10] and continued into the 1950s, [11] until at least 1959; [12] the intermediate frequency amplifier stage was also the first audio frequency stage using a reflex arrangement. That arrangement provided similar performance, in a four-tube radio, as one with ...

7. 21 of the best heartfelt Valentine’s Day gifts to order now ...

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   You can customize the bag with up to 10 letters of embroidery, and you even get to choose the thread color for a fully personalized design. $35 at L.L.Bean. Etsy. Custom Engraved Watch Box.

8. Amazon donating $1 million to Trump inaugural fund, to air ...

   www.aol.com/news/amazon-donating-1-million-trump...

   The Prime Video represents an in-kind donation worth another $1 million, the spokesperson said. The donations were first reported by the Wall Street Journal. Amazon joins another tech giant, Meta ...

9. 2017 in Egypt - Wikipedia

   en.wikipedia.org/wiki/2017_in_Egypt

   9 April – The Palm Sunday church bombings, twin suicide bombings that took place at St. George’s Church in Tanta, and Saint Mark's Coptic Orthodox Cathedral in Alexandria, killed at least 45 people and injured more than 100.