How To Figure Out A Master Lock Combination

the RIAA absolute Ansah Daniel


1 #

The RIAA passive LCR has a couple of features that are sufficient to make it absolutely the best kind of RIAA. The first feature is the series resistance, that, compared to the impedance load offer, is incomparably lower than the RIAA always implemented with resistors and capacitors. Tango LCR RIAA For example, a 600 ohm impedance, has a series resistance of 30 ohms. These consist of 30 ohm copper wire ... ... not by a resistance. For RIAA LCR impedance of around 30,000 ohms (impedance triode any easier for even the most flapped), I calculated a series resistance of only 540 ohms!
The second characteristic that, from a musical standpoint, is not secondary, indeed, in My experience is the real secret of the musicality of the LCR RIAA, is to present a constant impedance.

- In this respect also the volume controls are unquestionably stepped impedance constant rates than any other type of solution, both musical and instrumental performances. After all when you need to relaxations that are needed very strong, over 100 dB (phono swings are also 30V) and at the same time they step of 0.5 dB or less, in absolute accuracy between channels maintaining maximum musicality and dazzling speed ... well ', the choices become little -.

The advantage of a constant impedance to the RIAA is in the stability of the dynamic behavior, that is just while playing music. It is known that the frequency response of a passive RIAA RC type is subject to the impedance of the generator and even more so is the load downstream, thereby substantially due to the impedance of the next stage miller. If the RIAA to fly RC type we have made a cathode follower the underlying problem is essentially solved, but the downstream no! The issue becomes important when the design choices in inhibiting active stages, all what is not a single triode in common cathode. Especially if you use after the RIAA triode of a little more angry than the standard, which by contrast have hundreds of pF to Miller effect. In these cases the advantage of a constant impedance to the RIAA are absolute and inequiparabili.