OTOMON Laboratory　(音門ラボ) / 71A PSE stereo tube amp No NFB special order made

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71A PSE stereo tube amp No NFB special order made

You can order input voltage 117V, 220V, 230V, 240V.

I dont open information about schematic, parts, transformer using in my amplifier. My brand name is the guarantee to what I do with my production !!!

For all item on eBay, I will discount 10% or more of listing price, contact for more detail.

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71A PSE stereo tube amp No NFB special order made

This product is special order made item, if you want the same item, please contact me for order

Manufacturer:: OTOMON Lab

Audio amplifier » Tube amplifiers Audio amplifier » Special Order Made

This is the best amp which has output under 2W that I have ever made. Using 71A tube, para single end amplifier. Driver tube is C3g, rectifier tube is 83, can be changed to 80. No NFB was used !

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 use 2 tube in one side Para SE schematic
Sound is perfect, very beautiful and detail with rich sound. It is really amazing sound with only 2W of output.

Specification:

Response frequency: 10Hz ~ 100KHz(-2db)
Hum level: 0.1mV
THD: 1% 1W

Input volt is 117V, can order 100V or 230V.

Power tube, transformers can be change to another tube based on order from customer.