OTOMON Laboratory　(音門ラボ) / Special version 71A PP stereo tube amp with LUXMAN output transformer 50s year Western wiring

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Special version 71A PP stereo tube amp with LUXMAN output transformer 50s year Western wiring

We can provide power transformer which use for 117V, 220V, 230V, 240V.

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I will give discount 10% or more for all item in my eBay listing, contact me for more detail

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Special version 71A PP stereo tube amp with LUXMAN output transformer 50s year Western wiring

THIS ITEM WAS SOLD OUT

Manufacturer:: OTOMON Lab

Audio amplifier > Tube amplifiers Audio amplifier > Special Order Made

Only one was made ! Western wiring was out of stock and no other one available. 71A PP stereo tube amplifier, output 3W class A. 71A tubes are not included.

71A tube is excellent tube for audio, it is same as 101D, 102D , which is very musical and beautiful sound, but it has low output power so it is very difficult to make an power amplifier with 71A as output tube. An single end 71A tube can procedure max 0.8W, this amplifier is push pull working in class A1, give output 3.5W , good enough for driving speaker higher than 95db.
Sound is perfect, very beautiful and detail with rich sound. It is really amazing sound with only 3W of output.

Specification:

Response frequency: 10Hz ~ 100KHz(-1db)
Hum level: 0.2mV
THD: 0.8% 1W

Input volt is 100V. if you want to change to 117V or 230V, let me know.

This amp can be changed to 45 tube amp, just make some small modification, if you want to change to 45 tube let me know.

Tubes using in this amp is very popular and easily to find. Prestage tube is EF86, driving tube is 6AQ8.

All tubes are included.

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