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We can provide power transformer which use for 117V, 220V, 230V, 240V.
YouTube channel > Otomon Lab YouTube Channel
I will give discount 10% or more for all item in my eBay listing, contact me for more detail

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Total 1267 Items.
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26' tube pre-amplifier, voltage regulator 6SN7-6V6 *120V input
  • Recommendation

26' tube pre-amplifier, voltage regulator 6SN7-6V6 *120V input

26' tube preamplifier with drive tube is Western 396A (5670).


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396A-71A tube pre-amplifier, voltage regulator 6SN7-6V6
  • NEW
  • Recommendation

396A-71A tube pre-amplifier, voltage regulator 6SN7-6V6

71A tube preamplifier with drive tube is Western 396A. Output tube can be changed to VT-25, VT-52, 45, 50, VT-62 tube.


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Special order made LCR tube amplifier

Special order made LCR tube amplifier

LCR tube preamp with EF86 and E80CC tube. All tubes interconnected with transformers.


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50s yearPeerless (Altec) A-428B preamplifier 600:600ohm * 117~230V input

50s yearPeerless (Altec) A-428B preamplifier 600:600ohm * 117~230V input

Sales price: $ 2,600(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Extra rare Peerless A428B preamplifier, Input transformer is 4629, output transformer is 16287. I dont change anything to original schematic, just add power supply for it. Wooden case is red oak wood.


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50s year Westrex RA-1474 preamp with manual * 100-117V Perfec working !

50s year Westrex RA-1474 preamp with manual * 100-117V Perfec working !

Sales price: $ 3,500(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Extra rare Westrex RA-1474 preamp, come with power supply, input 100-117V . 100% Original condition, Western electric sound perfectly.
This product is currently sold out.

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LCR tube preamp

LCR tube preamp

LCR tube preamp with EF86 and E80CC tube. All tubes interconnected with transformers. Price for this LCR preamp is 5500USD + shipping fee.


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DAC, USB decoder tube amplifier preamp (power amp)
  • NEW
  • Recommendation

DAC, USB decoder tube amplifier preamp (power amp)

DAC, USB decoder using 717A/42 tube for ouput, output transformer is Western Electric. Beautiful sound. Rectifier tube is 80 tube.


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717A-71A/10Y/VT-25/45/2A3 tube preamp
  • NEW
  • Recommendation

717A-71A/10Y/VT-25/45/2A3 tube preamp

71A tube preamplifier with drive tube is Western 717A. Can be changed to VT-25, VT-52, 45, 50, VT-62 tube. Can be used as preamp.


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42 push pull tube amplifier on MQ-60 chassis
  • NEW
  • Recommendation

42 push pull tube amplifier on MQ-60 chassis

42　push pull tube amplifier with Luxman OPT, building on Luxman MQ-60 chassis


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71A/46/42/10Y/VT-25/45/KT88/EL-34 intergrated tube amplifier with phono stage
  • NEW
  • Recommendation

71A/46/42/10Y/VT-25/45/KT88/EL-34 intergrated tube amplifier with phono stage

Intergrated amplifier with phono stage embeded. You can use any tube from 42, 46, 45, KT-88, EL-34 vv..v.


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45　push pull tube amplifier on MQ-60 chassis
  • NEW
  • Recommendation

45　push pull tube amplifier on MQ-60 chassis

45 push pull tube amplifier with Luxman OPT, building on Luxman MQ-60 chassis


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71A push pull tube amplifier on MQ-60 chassis
  • NEW
  • Recommendation

71A push pull tube amplifier on MQ-60 chassis

71A push pull tube amplifier with Luxman OPT, building on Luxman MQ-60 chassis


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717A-71A/10Y/VT-25/45/2A3 tube amplifier with wooden board
  • NEW
  • Recommendation

717A-71A/10Y/VT-25/45/2A3 tube amplifier with wooden board

71A tube preamplifier with drive tube is Western 717A. Can be changed to VT-25, VT-52, 45, 50, VT-62 tube. Can be used as preamp.


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50s year Langevin 116B preamplifier matching pair with phono block * ALL 6J7 tubes

50s year Langevin 116B preamplifier matching pair with phono block * ALL 6J7 tubes

Sales price: $ 2,800(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Extra rare Langevin 116B preamplifier, with output transformer is Langevin 313A. Phono block was added so you can use it for phono stage. All tubes are 6J7G tube.
This product is currently sold out.

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396A-71A tube preamplifier special order made with NP-126 OPT
  • NEW
  • Recommendation

396A-71A tube preamplifier special order made with NP-126 OPT

71A tube preamplifier with all ISO (TANGO) transformer, drive tube is Western WE396A. Output is 600ohm


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50s year Langevin 117A preamplifier * Perfect working

50s year Langevin 117A preamplifier * Perfect working

Sales price: $ 1,750(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Extra rare Langevin 117A preamplifier, input transformer is TRIAD, output transformer is Langevin 113C. I dont change anything to original schematic, just add power supply for it.
This product is currently sold out.

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By price   Recent   Items displayed
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