HV and 5k/4+8Ω

Leszek Ogonowski design, build and sell beautiful transformers for tube-amplifiers. I received these 3 models a few days ago. I will use them for a single-ended amplifier, along with NOS Telefunken tubes.

Specifications

power transformer

  • primary : 230 V, 50 Hz
  • secondary 1 : 750 V CT (350-0-350), 200mA
  • secondary 2 : 6.3V, 6A
  • secondary 3 : 5V, 3A

output transformers

  • SE50-3 cores annealed Ei96/59 thick of laminations 0,3mm
  • Ra=5kΩ
  • output impedance 4 and 8 Ω