A real Ba****d – Part 2
July 23, 2013 11 Comments
Second part of my “rework” of the old “The Bastard” – the RIAA-stage. The first was the tube-based line stage which you can see in one of my previous posts and there you can also find a link to the original article from a (long gone) Danish magazine.
This is a discrete solid-state RIAA stage based on fairly standard BC5xx-transistors. I know virtually nothing about RIAA-designs, toplogies, correction curves etc. so I will not comment on that and all I have done is to lay out a new PCB in Eagle. My enclosure parts for this build are currently on order, so I have only managed to listen very briefly to the board but it does sound promising I have to say :). Once it is built I will be listening further and comparing it against the Retro as well (in an “old-versus-new-technology” shootout :D).
theslowdiyer 
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Hello, can you mark the voltage at each point in the circuit?
Not really, sorry. Is there anything specific you want to know?
I want to know the operating voltage at each point in the circuit
OK, that’s unfortunately not something I can offer to do for you. If you plug the circuit it into a simulator program then I think that should tell you everything you need to know.
Any info on the Ba***rd to Retro comparison?
thx
No, none that I can remember unfortunately.
Thank you for fast respond. Are you using retro still?
No. I still have it, but haven’t used it for a while now.
Am I allowed to ask what you use now If us are still wit vinyl?
Of course. I just have the turn table hooked up to the internal RIAA of my H/K Signature preamp. I almost never play vinyl at the moment, so I don’t want to have a separate box in the rack for just that purpose 🙂