Re: Kam s ním? (TL081)

[sam.hw]

Zdravim,

jak to funguje, to musim priznat: fakt netusim - ale na druhou stranu (jak vidim to zapojeni a ruzne hodnoty soucastek pro levy a pravy kanal)
mam pocit, ze to 'slysim' 
a mam pocit, ze to bude docela ruzne pro sin, triangle, a i pro pulzni vstup
jde (asi) o fazovy posuv s mirnym odklonem, ktere pusobi v interferenci jako 'nasobic' (ale presne jak to bylo receno, ne pitcth)
takze spis jako nejaka (pod)harmonie ... 

to by chtelo minimalne nasimulovat - anebo spis opravdu poslechnout

jako kdyz jsem kdysi prisel k prodejci syntaku a rikal mu, ze bych potreboval nastroj, kde vidim, jak obalku tonu rovnou nacrtnu, o jaky prubeh mi jde.
on odpovedel, ze to je prece jedno, ze jde o vyslednek, jak to nakonec pusobi ...

to je ten rozdil mezi exaktni vedou v elektronice a subjektivnim vystupem v beznem zivote (nechci rict primo v umeni)

:)

PS: na druhou stranu, rad si prectu o technicke strance veci a opravdu klobouk dolu pred lidma, co do detailu dokazou zanalyzovat, co se v danem schematu deje a navic, dokazou to podat srozumitelne i 'obycejnym lidem' 
 
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Sam
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Sent:Â Sunday, December 05, 2021 at 10:22 PM
From:Â "balu" <balu na k-net.fr>
To:Â hw-list na list.hw.cz
Subject:Â Re: Kam s nĂ­m? (TL081)
ja viem, spominal som to v suvislosti s paralelnym vlaknom o tranzistoroch z dneska.
Linka vyzerala zaujimavo, tak som sa pozrel na nejake ine syntezatory. A nasiel som Moog modular system
http://www.synthmanuals.com/manuals/moog/modular_system/service_manual/moog_modular_system_service_manual.pdf
na obrazku 39 je Bode frequency shifter. Zaujimavy obvod, niekto tusi ako to funguje? :-)
A frequency shifter is a highly specialised module capable of shifting the spectrum of a signal by a fixed amount. This is very different from a pitch-shifter and other effects such as ring modulation or frequency modulation. (See appendix 5.)
The RS-240 allows you to shift the frequency linearly within a number of ranges, the widest of which shifts the signal by approximately Âą5kHz at its maximum setting. You can use manual and voltage controls (or a combination of the two) to achieve the desired effects. Upwardly shifted and downwardly shifted signals are available simultaneously, both as independent signals, and as a user-defined mix of the two.
This module also allows you to shift the frequency exponentially, which will produce a number of conventional - and less conventional - pitch shifting effects.
b.
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