There are plenty of tube amplifiers now being manufactured, with a popular choice being headphone amplifiers that use a tube as a gain stage followed by an op-amp as a buffer with a low impedance ...

There appeared to be a whole class of mundane tubes ... so commonly used for these sort of kits that it can be found all over the web — a very conventional twin common-cathode amplifier using ...

First made in 1959, this is the best-selling tube amplifier of all time. Every product is carefully selected by our editors.

The GA-10 is an audiophile-grade headphone amplifier that features the SEPP (single-ended push-pull) circuit with eight vacuum tubes, a linear transformer, and direct tube output. The vacuum tubes ...

The HTA100’s glowing preamp tubes and ... affordable amps we’ve tested make engineering compromises that might cause a problem in certain situations—such as if they’re used with speakers ...

If you're looking to dig into the world of hi-fi systems that consist of a separate stereo receiver or integrated amplifier that powers a set of passive speakers — whether your passion is ...

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These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and ... who owns a used car ...

These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle.