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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.

YouTube channel > Otomon Lab YouTube Channel

Original Order Made


Total 5 Items.
  • NEW
  • Recommendation

71A/101D drive VT-62/VT-25/10Y SE monoblock tube amplifier 8W power Zero NFB (O.U.D.D.C)

This is VT-62 tube amp that adopted circuit O.U.D.D.C, and it is exactly the best VT-62 tube amp that I made.
  • NEW
  • Recommendation

71A drive 2A3 SE tube amplifier 5W power Zero NFB (O.U.D.D.C)

This is 2A3 tube amp that adopted circuit O.U.D.D.C, and it is exactly the best 2A3 SE tube amp that I made.
  • NEW
  • Recommendation

71A/101D drive VT-62 SE tube amplifier 7W power Zero NFB (O.U.D.D.C)

This is VT-62 tube amp that adopted circuit O.U.D.D.C, and it is exactly the best VT-62 tube amp that I made.
  • NEW
  • Recommendation

71A/101D drive VT-62 SE tube amplifier 7W power Zero NFB (O.U.D.D.C)

This is VT-62 tube amp that adopted circuit O.U.D.D.C, and it is exactly the best VT-62 tube amp that I made.
  • NEW
  • Recommendation

71A/101D drive VT-62 SE tube amplifier 7W power Zero NFB (O.U.D.D.C)

This is VT-62 tube amp that adopted circuit O.U.D.D.C, and it is exactly the best VT-62 tube amp that I made.