Pleasant sound, with good soft bass, good "middle", a certain alloy of transistor detail and lamp heat. Plus power is connected to the "ground". Design - phono corrector on a GE transistor;. You must have soldering skills and understand electronics!
EAR 834P Clone Tube MM Phono Preamp For Sale - US Audio Mart
JBL Guitar Amplifiers for sale in Ireland
There is an opinion that the sound of an amplifier built entirely on germanium transistors has a special color close to the “warm tube” sound. On
Assembled PCB Germanium Ge transistor headphone amplifier
What made the SG520 a must-have?. Imagine crystal-clear highs and thumping lows, turning every session into a nostalgic dance-off. No P.O. Boxes.
JBL SG520 Graphic Controller Preamplifier
Cornet3 - MM Tube Phono PCB Kit – Hagerman Audio Labs
JBL SG520 PRE Amp $2,400.00 - PicClick
Magic Moment: JBL Graphic Controller Preamplifier & Solid State Energizer Modification
Full germanium tube amplifying split element pre-headphone amplifier finished machine dual-channel pre-amplification circuit - AliExpress
SSL Bus Compressor Clone - GSSL DIY Kit PCB - Mic & Mod