Bogen Challenger HF10g 50er Jahre Vintage Valve Amplifier Mono
David Bogen Challenger HF10g. believed to be late 1950s. It’s a 110v - 10 watt mono output valve amp in almost original condition. Rectifier - RCA 6X5GT Preamplifier: Mullard‘s ECC83 and ECC81 Power amp: Brimar 6V6GT Sylvania 6v6GTG.