Bogner Shiva Power Tube Pins 1&8 Not grounded? - Music Electronics Forum
Bogner Shiva | IgorAmp
Bogner Shiva Capacitor Replacement - YouTube
Let's discuss a Three Channel Amp from Scratch! Actually it is more a monologue - lol. But it may 1) help me to find ideas for my next amp or 2) inspires
DIY.Blog - Zorg Effects
Bogner Amps - Shiva 20th Anniversary Part 1 - YouTube