Manual Scaffolding Amplifier, 300w Class A High Power Kt88 Push-pull Tube Amp, Total Gain: 39db Frequency Response: 20hz~35khz - Transformers - AliExpress
KT88 PP2
KT88pp and KT88pp two channel power amplifier
Ella Push Pull EL34/KT88 Amplifier Schematic | DIY Hifi Supply