When you wind the unit up, you're not only winding the turntable, but you're "loading" the mechanical amplification system.
It works by virtue of a system of levers. A wound up spring provides the power for this amplification. When a very small vibration is sent into the system, it "releases" the tension provided by the spring and transfers the vibration to a much larger diaphragm movement system than would be possible with just the very slight energy coming from a wiggling needle.
As far as tone manipulation, this is all handled by a series of frequency tuned baffles and absorption modules. You'd actually be able to control bass, midrange and treble.
Steampunk hi-fi.-- doctorremulac3, Sep 26 2019 Mechanical amplifiers http://www.douglas-...hamp/trumechamp.htmThe magnificent Museum of Retro-Tech [8th of 7, Sep 28 2019] [+]-- zen_tom, Sep 26 2019 RE: Link. This is one of the reasons to get up in the morning, every day you learn something.
A pnumatically powered audio amplifier.
Brilliant.-- doctorremulac3, Sep 26 2019 [+]-- wjt, Sep 28 2019 See also <link> for mechanical and pneumatic amplifiers.-- 8th of 7, Sep 28 2019 Wow, clever stuff.-- doctorremulac3, Sep 28 2019 Not really, it's just a case of clicking the "link" button and then copying and pasting the URL.-- 8th of 7, Sep 28 2019 Don't be so modest.-- doctorremulac3, Sep 28 2019 "Oh, the humility ... "-- 8th of 7, Sep 28 2019 But [8th] has much to be modest about.-- MaxwellBuchanan, Sep 28 2019 random, halfbakery