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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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42 SE tube amplifier with SIEMENS OPT, Bluetooth receiver, Headphone amp embedded 230V
  • Recommendation

42 SE tube amplifier with SIEMENS OPT, Bluetooth receiver, Headphone amp embedded 230V

Sales price: $ 1,250(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
42 tube amplifier with max 2W of power. Can be used as preamplifier, Bluetooth receiver, heaphone amp. OPT is 50s year Siemens one. All tubes included. Input volt is 230V.
This product is currently sold out.

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45 PSE tube amplifier with power supply separated, special order made X series transformer
  • NEW
  • Recommendation

45 PSE tube amplifier with power supply separated, special order made X series transformer

This is 45PSE tube amp (can be used with 2A3), special order made with all ISO (TANGO) transformers. It is the best 45 PSE tube amp I have made.


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45/2A3 SE tube amplifier amp
  • NEW
  • Recommendation

45/2A3 SE tube amplifier amp

45/2A3 tube amplifier with drive tube is 717A. Output is 3-5W. Can be ordered to change tube to 300B, PX-4, PX-25. Prestage tube can be changed to 6SJ7, 5963 without modification.


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Passive preamp transformer finemet core attenuator 48 steps * special order made
  • NEW
  • Recommendation

Passive preamp transformer finemet core attenuator 48 steps * special order made

Special order made attenuator, transformer type with 48 steps, each step is -1.5 db. Sound is great, no signal lost, very musical. Transformer core is made from finemet meterial.


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45/2A3 SE tube amplifier 717A tube drive with All TAMURA transformer 100V spec * Perfect sound !
  • Recommendation

45/2A3 SE tube amplifier 717A tube drive with All TAMURA transformer 100V spec * Perfect sound !

Sales price: $ 1,300(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
45/2A3 tube amplifier with all TAMURA transformer, drive tube is 717A (can be changed to 5963). Input volt is 100V.
This product is currently sold out.

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VT-62/801A/50SE tube amplifier special made pure class A1
  • NEW

VT-62/801A/50SE tube amplifier special made pure class A1

Special amplifier using with both VT-62 and 50 tube. Walnut case with 3mm thick of top cooper plate. It took me 3 years for designing the schematic. Prestage is 12AY7(12AT7), driving tube is 12BH7A.


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2A3PP tube amplifier
  • Recommendation

2A3PP tube amplifier

This amplifier was made using permalloy output transformers.


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EXRARE 30s year Malotki CD line, input transformer 1:1 or 1:2
  • NEW
  • Recommendation

EXRARE 30s year Malotki CD line, input transformer 1:1 or 1:2

Sales price: $ 550(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare line CD tranformer manufactured by Malotki. Step up ratio is 1:1 or 1:2. Wiring is Western Electric 50' year.
This product is currently sold out.

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45PP stereo tube amp with LUXMAN output transformer * 117V input
  • Recommendation
  • Limited edition

45PP stereo tube amp with LUXMAN output transformer * 117V input

Sales price: $ 1,300(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Extra rare 45 tube amplifier, working in class A1 push pull. Output transformer is Luxman OY series. Output is 7W class A.
This product is currently sold out.

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45/2A3 SE tube amplifier amp
  • NEW
  • Recommendation

45/2A3 SE tube amplifier amp

45/2A3 tube amplifier with drive tube is 717A. Output is 3-5W. Can be ordered to change tube to 300B, PX-4, PX-25. Prestage tube can be changed to 6SJ7, 5963 without modification.


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45/2A3 SE tube amplifier amp
  • NEW
  • Recommendation

45/2A3 SE tube amplifier amp

45/2A3 tube amplifier with drive tube is 717A. Output is 3-5W. Can be ordered to change tube to 300B, PX-4, PX-25. Prestage tube can be changed to 6SJ7, 5963 without modification.


View product details»
45 PSE tube amplifier with special order made X series transformer and walnut case
  • NEW
  • Recommendation

45 PSE tube amplifier with special order made X series transformer and walnut case

This is 45PSE tube amp (can be used with 2A3), special order made with all ISO (TANGO) transformers. It is one of the best 45 PSE tube amp I have made.


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71A PP tube amplifier class A * orient cutting core OPT transformer
  • NEW
  • Recommendation

71A PP tube amplifier class A * orient cutting core OPT transformer

71A tube amplifier with drive tube is EF86 and 12BH7A. Can order 45 tube as replacement of 71A


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71A PP tube amplifier class A * Amorphous OPT transformer
  • NEW
  • Recommendation

71A PP tube amplifier class A * Amorphous OPT transformer

71A tube amplifier with drive tube is EF86 and 12BH7A. Can order 45 tube as replacement of 71A


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VT-62/801A/50SE tube amplifier special made pure class A1
  • NEW

VT-62/801A/50SE tube amplifier special made pure class A1

Special amplifier using with both VT-62 and 50 tube. Walnut case with 3mm thick of top cooper plate. It took me 3 years for designing the schematic. Prestage is 12AY7(12AT7), driving tube is 12BH7A.


View product details»
45PP stereo tube amp with LUXMAN output transformer * 117V input
  • Recommendation
  • Limited edition

45PP stereo tube amp with LUXMAN output transformer * 117V input

Sales price: $ 1,250(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Extra rare 45 tube amplifier, working in class A1 push pull. Output transformer is Luxman OY series. Output is 7W class A.
This product is currently sold out.

View product details»
By price   Recent   Items displayed
◀◀ 60 61 62 63 64 65 66 ►►