Dear @analogluvr : Your link for " an open mind folks " comes from here: http://www.effectrode.com/ and nothing of what we are talking here in home audio system hobby where exist phonolinepreamps and amplifiers, all system items in the system link are for home audiophiles.
Well your " electronic engineer " just " speaks " with out showing any arguments or foundation that can attest what he posted:
Advantages with Tubes:
Advantages Transistor:
Transistors disadvantages:
It's a waste of time with your " expert ".
and that's your reference?, now I can understand whom you really are. Something worst that the AHEE.
Good for you.
R.
Well your " electronic engineer " just " speaks " with out showing any arguments or foundation that can attest what he posted:
Advantages with Tubes:
- Superior sound quality. """ for whom and why? """
- Highly linear without negative feedback, especially small-signal types. "" like the LOMC cartridge signal? """
- Smooth clipping is widely considered more musical than transistors. " again. who says that and why? ""
- Tolerant of large overloads and voltage spikes.
- Characteristics highly independent of temperature, greatly simplifying biasing.
- Wider dynamic range than transistors circuits, due to higher operating voltages and overload tolerance. """ Has no idea, only talks. """
- Device capacitances vary only slightly with signal voltages (Miller effect).
- Capacitive coupling can be done with small, high-quality film capacitors, due to inherently high-impedances of tube ciruits.
- Circuit designs tend to be simpler than transistorized equivalents, which are greatly complicated by the need to linearize intrinsically non-linear transistors. " More complicated because almost any one can design tube circuit but SS devices is only for experts and not for your " electronic engineer . ""
- Operation is usually in Class A or Class AB, minimizing crossover notch distortion. " that electronic engineer is almost an ignorant or stupid one . """
- Output transformer in power amp protects speaker from DC voltage due to malfunction and protects tubes from shorts and blunts back-emf spikes from speaker. """ so what? """
- Tubes can be relatively easily replaced by user. """ so what ? """
Advantages Transistor:
- Usually lower cost and smaller than tubes, especially in small-signal circuits.
- Can be combined in the millions on one cheap die to make an integrated circuit, whereas tubes are limited to at most three functional units per glass bulb. "" your way ignorant " electronics engineer " was thinking in integrated circuits. LoL ? ! ! ! """
- Lower power consumption, less waste heat, and high efficiency than equivalent tubes, especially in small-signal circuits.
- Can operate on lower-voltage supplies for greater safety, lower costs, tighter clearances.
- Matching transformers not required for low-impedance loads.
- Usually more physical ruggedness than tubes (depends upon construction).
Transistors disadvantages:
- Tendency toward higher distortion than equivalent tubed circuits. """ ignorant and stupid """
- Complex circuits and considerable negative feedback required for low distortion. """ ignorant and stupid """
- Sharp clipping, in a manner widely considered non-musical, due to considerable negative feedback commonly used. Does not gracefully roll-off or gently compress; instead, cuts off sharply, suddenly and abruptly with extremely hard edge. """ ignorant and stupid. """
- Device capacitances tend to vary wildly with applied voltages (Miller effect).
It's a waste of time with your " expert ".
and that's your reference?, now I can understand whom you really are. Something worst that the AHEE.
Good for you.
R.