eedork
Super Member
I just received a very clean Advent 300 from an eBay auction. I've had both a 300 and the very rare 350 in the past and am looking forward to the restoration of this particular unit (I'm going to keep this one!).
Initial testing reveals that the tuner and preamp section are working perfectly. The left channel of the amplifier is fine, but the right channel is intermittent and shows 0 mV across the emitter resistor until it kicks in, at which point the voltage jumps up to ~1 mV. The left channel bias has been checked and set to 3 mV. The left channel bias is rock solid. I've got more investigating to do ..
I'm planning to do a full recap on this unit, but based on the advice of Patfont, I'm going to try to isolate this right channel problem first before the recap.
I really love these Advent 300 receivers. They do most things right and are a joy to use. I *love* the vernier tuning.
I'll post pictures later this weekend.
-Matt
Initial testing reveals that the tuner and preamp section are working perfectly. The left channel of the amplifier is fine, but the right channel is intermittent and shows 0 mV across the emitter resistor until it kicks in, at which point the voltage jumps up to ~1 mV. The left channel bias has been checked and set to 3 mV. The left channel bias is rock solid. I've got more investigating to do ..
I'm planning to do a full recap on this unit, but based on the advice of Patfont, I'm going to try to isolate this right channel problem first before the recap.
I really love these Advent 300 receivers. They do most things right and are a joy to use. I *love* the vernier tuning.
I'll post pictures later this weekend.
-Matt