Geloso G-230-PA

This is an old and rusty Geloso G-230-PA Public Adress amplifier from early sixties. It has been modified for guitar use (mike channel jumped to phono to use all the gain stages, emitter resistor for the output stage replaced to 10w to better handle near constant overload). It's an all-germanium design with interstage and ouput transformers putting out 20w at clipping 25w peak into 8 ohm. First capture at half volume, a full volume capture should follow when I get the courage to push it to it's electrical limits. It's powered by a lab power supply set at 12v, with a maximum of around 3 amps. Enjoy