Hartung MkII
is an OTL (Output Transformer Less) tube power amplifier monoblocks set, designed by Plamen Doynov.


Output Power: 2 x 50W sin /8 Ohm
Input impedance: 100k Ohm
Usable speakers: 4 - 64 Ohm
Class AB1
Technology: output transformer less tube amplifier, circlotron
Inputs: RCA; XLR
Outputs: Banana sockets
Used tubes: ECC81 (Mullard); 6C33C
Total consumable power: 350W
Wiring diagram