0-70-180-340V monster mains transformer

Capable of 300mA at 100 to 475V and 6A for heaters

This is another clearance transformer, specified for high power and huge flexibility. It has an asymmetrical HV winding (like my 0-190-275V transformer) rated at 300mA, and also supplies up to 6A for heaters. It is very big and very heavy. Ideal for amp builders who are constantly tweaking and experimenting and need a mains transformer that canĀ  provide a wide range of voltages:

  • 100V DC by using the 0 and 70V taps
  • 250V DC by using the 0 and 180 taps
  • 380V DC by using the 70 and 340V taps
  • 475V DC by using the 0 and 340V taps


Dimensions & info

It is 115mm high, 110mm wide and 95mm deep. It weighs 4.2kg. The mains primary offers two 110V windings and a 20V winding, to match 110-120V US mains, 220V European and 240V UK/Oz/etc mains voltages.


Out of stock

Note: (As of 29/06/22, Amp Maker is taking a Summer holiday. Orders placed now will ship from 25/07/22.)