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We can provide power transformer which use for 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 !!!

YouTube channel > Otomon Lab YouTube Channel

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Total 10 Items.
  • NEW

Early TRIAD HSM-31 interstage transformer for tube amplifier

Sales price: $ 998(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very good output transformer, made by TRIAD, model HSM-31. Primary is 20K ohm, secondary is 20K ohm, Both input and output is double core. Never used before.
This product is currently sold out.

Early TRIAD HS-27 interstage transformer for tube amplifier

Sales price: $ 500(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very good interstage transformer, made by TRIAD, model HS-27. Primary allow max 5mA DC.
This product is currently sold out.

50s year TRIAD Input, MC step up transformer

Sales price: $ 600(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare input, MC step up transformer of TRIAD, step up ratio is 1:18 or 1:26. Sound is very beautiful and rich.
This product is currently sold out.

TRIAD HS-1 Input, MC step up transformer * special order made from AMPEX

Sales price: $ 985(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare input, MC step up transformer HS-1, special order made from Ampex. Spec is same as HS-1 but secondary is 86.5K which is little higher than original HS-1
This product is currently sold out.

TRIAD A-9J Input, MC step up transformer

Sales price: $ 395(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare input, MC step up transformer A-9J. Input impedance is 50ohm, 600ohm selectable.
This product is currently sold out.

TRIAD HS-1 Input, MC step up transformer * special order made from AMPEX

Very very rare input, MC step up transformer HS-1, special order made from Ampex. Spec is same as HS-1 but secondary is 86.5K which is little higher than original HS-1

TRIAD HS-1 Input, MC step up transformer * special order made from AMPEX

Sales price: $ 985(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare input, MC step up transformer HS-1, special order made from Ampex. Spec is same as HS-1 but secondary is 86.5K which is little higher than original HS-1
This product is currently sold out.

TRIAD HS-1 Input, MC step up transformer * special order made from AMPEX

Sales price: $ 1,300(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare input, MC step up transformer HS-1, special order made from Ampex. Spec is same as HS-1 but secondary is 86.5K which is little higher than original HS-1
This product is currently sold out.

TRIAD HS-4 Input, MC step up transformer * nearly same as TRIAD HS-1

Sales price: $ 1,300(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very rare input, MC step up transformer HS-4. Spec is same as HS-1 but there are double core in secondary so you can use it for Pushpull as well as SE amplifier.
This product is currently sold out.

Early TRIAD HS-56V line, output transformer for tube amplifier

Sales price: $ 450(Listing price is for payment via Paypal, discount 2% if payment via bank transfer)
Very very good output transformer, made by TRIAD, model HSM-56V. Primary is 600 ohm, secondary is 600 ohm, Both input and output is double core. Very beautfiful condition.
This product is currently sold out.