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In Reply to: RE: VINTAGE PHONO STAGE - RIAA posted by Steve O on October 19, 2015 at 13:09:05
For any given schematic, there can be pretty significant differences caused by the quality and matching of both the active and passive devices. Neither schematic included the power supply either!
Follow Ups:
Yes, A has a few PEC's inside.
I didn't want to divulge the brand/model of each so preconceived notions would not influence analysis of the schematics. Since that was unfruitful here are links to the full service manuals...
A:
http://www.fisherconsoles.com/non%20console%20manuals/fisher%20tx50%20beg%2010001%20sm.pdf
B:
http://elektrotanya.com/scott_260_sm.pdf/download.html
Maybe those who have heard both can attest to the sonic merits of either in correlation to their circuit topologies.
Thanks
...you really can't assess sonic attributes based on circuit topology alone. What you'll hear is the amalgam of circuit topology, physical components, physical layout/construction technique and to a lesser degree, overall packaging and external influences such as power supply topology. There are many ways to skin a cat.
The fact that one circuit is implemented with PECs is a major strike against it regardless of the merits of the basic circuit.
Understood, but in a more literal sense, how do early solidstate Fisher and Scott units compare?
Much has been written on both manufacturers' tubed integrateds yet there seems to be significantly less information on their brief period of US made transistor products.
So, if anyone has heard the units depicted in the links (or other models from those series) I would be curious to see what the general consensus is.
Thank you
I have an early solid-state Scott receiver but I have never played it. I obtained it strictly for the knobs that matched my earlier Scott tube gear. I know there are certain pieces that have their fans. The Marantz 7t has its fans. However, I have always considered the early solid state Fisher and Scott units to be more trouble than they are worth. My Scott receiver was free. I'd love to be proven wrong, since you can find them cheap, but that is my current view.
Dave
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