Triode Amplifiers

Pentode & Tetrode Amplifiers

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Time Machine 300B-SE
Time Machine 2A3-PP
Time Machine Duo
Time Machine 45 / 2A3-SE

The Time Machine 45 is a stereo (two-channel) amplifier rated at 1.8 to 4.5 watts per channel into 8 ohms. It is comprised of two stages: the input stage and the output stage. The input stage can have a big impact on the sound quality of an amplifier, and good quality driver vacuum tubes should be used. This is why quality current production 6SL7’s are included. The output stage of the Time Machine 45 is a standard self-biasing setup that, whilst not giving maximum output, gives maximum reliability. It also avoids the use of silicon diodes in the bias network. This is then coupled to custom wound output transformers (the heart and soul of every valve amplifier). Every TM45 output transformer is painstakingly wound with 27 interleaves to exacting specifications. This is the most time consuming stage of manufacturing each amplifier.

PRICE $2795.00 (Shuguang 2A3. Tung-sol 6SL7)
Now built on larger chassis with teflon tube sockets and upgraded power supply. (1/07/12)


Power Output - 2 watts per channel (4.5 for 2A3)

Frequency response -3db - 8hz to 35khz

Separation - > 55db

Signal to Noise - > 92db

Signal to Hum - > 70db

Distortion - < 0.2% at 0.5 watt

Hum Level - < 2.0millivolt

Sensitivity - 700mV

Inputs - 4

Speaker output - 8 ohm (6 to 10ohm)

Damping factor >4.0 20hz to 20khz 8 ohms

Weight ~20kg (~44lb)

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