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previous: Pat Forgot to mention, this amp does NO... -- 1114706045	View Thread

Re: Looking inside Alessandro Bloodhound

4/28/2005 11:39 AM
Morris	Re: Looking inside Alessandro Bloodhound Did this amp use a choke? I've seen a schematic of an Alessandro amp that sounds very similar to the circuit you described. It showed 40uF of filtering right after the rectifier (two 80uF caps in series) followed by a choke and 20uF of filtering. The OT B+ was taken after the choke. The preamp looks like a Trainwreck Express topology, but the 3rd gain stage uses a 1.5k cathode resistor bypassed with a 25uF cap instead of an unbypasssed 10k cathode resistor.

4/28/2005 11:39 AM

Morris

Re: Looking inside Alessandro Bloodhound

Did this amp use a choke? I've seen a schematic of an Alessandro amp that sounds very similar to the circuit you described. It showed 40uF of filtering right after the rectifier (two 80uF caps in series) followed by a choke and 20uF of filtering. The OT B+ was taken after the choke.

The preamp looks like a Trainwreck Express topology, but the 3rd gain stage uses a 1.5k cathode resistor bypassed with a 25uF cap instead of an unbypasssed 10k cathode resistor.

Replies:

Pat Yes, there is a choke. I haven't dr... -- 4/28/2005 12:53 PM