The first Tube amp club of LYN ( i think) and lets gather the tubers up and show the beauty of tube
In general tube amps give a warm sounding mids which audiophiles love to have listening
Vacumm Tube explanation as of Wikipedia's statement @ http://en.wikipedia.org/wiki/Vacuum_tube
Advantages and disadvantages as stated @ http://en.wikipedia.org/wiki/Tube_amp
* Very linear (especially triodes) making it viable to use them in low distortion linear circuits with little or no negative feedback.
* Inherently suitable for high voltage circuits.
* Can be constructed on a scale that can dissipate large amounts of heat (some extreme devices even being water cooled). For this reason valves remained the only viable technology for very high power applications such as radio and TV transmitters long into the age when transistors had displaced valves in most other applications.
* Electrically very robust, they can tolerate overloads for minutes which would destroy bipolar transistor systems in milliseconds.
* Softer clipping when overloading the circuit, which many audiophiles and musicians think gives a more pleasant sound.
* A cathode heater is required. Heater power represents a significant heat loss and energy use.
* Higher voltages are required for the anodes, compared to solid state amplifiers of similar power rating.
* They are significantly larger than equivalent solid-state devices
* High impedance and low current output is unsuitable for direct drive of many real world loads, notably various forms of electric motors.
* Valves have a shorter working life than solid state parts due to various failure mechanisms (such as heat, cathode poisoning, breakage, or internal short-circuits).
* Available in a single polarity only whereas transistors are available in complementary polarities (e.g., NPN/PNP), making possible many circuit configurations that cannot be realized directly with valves.
* Valve circuits must avoid introduction of noise from ac heater supplies.
* Microphonics – valves may sometimes be sensitive to sound or vibration, inadvertently acting like a microphone.
My collection of 12AU7s
This post has been edited by noobandroid: Jul 2 2012, 10:13 PM