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  2. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    List of most expensive coins Price Year Type Grade Issuing country Provenance Firm Date of sale $18,900,000 1933 1933 double eagle: MS-65 CAC United States: King Farouk of Egypt: Sotheby's [1] June 8, 2021 $12,000,000 1794 Flowing Hair dollar: SP-66 CAC United States Neil, Carter Private sale [2] January 24, 2013 $9,360,000 1787 Brasher ...

  3. Egyptian gold stater - Wikipedia

    en.wikipedia.org/wiki/Egyptian_gold_stater

    The gold stater (Egyptian: nfr-nb, "Nefer-nub", meaning "fine gold") was the first coin ever minted in ancient Egypt, around 360 BC during the reign of pharaoh Teos of the 30th Dynasty. Under Teos [ edit ]

  4. 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.

  5. Ptolemaic coinage - Wikipedia

    en.wikipedia.org/wiki/Ptolemaic_coinage

    The Ptolemaic dynasty introduced standard coinage to Egypt, where pre-existing native dynasties made only very limited use of coins. Egyptian gold stater was the first coin ever minted in ancient Egypt around 360 BC during the reign of pharaoh Teos of the 30th Dynasty. These coins were used to pay salaries of Greek mercenaries in his service.

  6. Antique radio - Wikipedia

    en.wikipedia.org/wiki/Antique_radio

    A foxhole radio is a simple crystal sets radio receiver cobbled together from whatever parts one could make (which were very few indeed) or scrounged from junked equipment. Such a set typically used salvaged domestic wiring for an antenna, a double-edged safety-razor blade and pencil lead (or bent safety-pin) for a detector, and a tin can ...

  7. Gold (hieroglyph) - Wikipedia

    en.wikipedia.org/wiki/Gold_(hieroglyph)

    Gold stater of Nectanebo II; Perfect Gold, or Fine Gold. One of the few coins minted for ancient Egypt is the gold stater, issued during the 30th Dynasty. The reverse of the gold stater shows a horse reared up on its hind legs. The obverse has the two hieroglyphs for nfr and nb: "Perfect gold", or a common-era term: 'Fine'-gold.

  8. The 9 Best Sale Items at Costco Right Now - AOL

    www.aol.com/9-best-sale-items-costco-200246923.html

    $5.50 off each 24-pack of 16.9-ounce bottles. If you're tackling Dry January, San Pellegrino sparkling mineral water is a great way to mix things up.The 24-pack of 16.9-ounce bottles is $5.50 off ...

  9. 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 ...