Raccoon1400
Super Member
Here is the matching preamp for the bose 1801, from BilboBaggins.
The plan to replace the following
-opamps
-transistors
-electrolytic caps
-mylar caps
-carbon comp resistors
First, I am looking at the signal path caps. 8x 5uf axial electrolytic caps, and the output caps 4x 16uf NP caps. (One per channel, there are 4 channels!)
I see two options for the 5uf caps. Panasonic has 5uf polyester caps. And 4.7uf polypropylene caps. Would the 4.7uf ones be close enough? I'd prefer to use the polypropylene ones. You can find the SM on hifiengine, they are on page 10, near the op-amps.
For the output caps, it would be good to use polypropylene as well. But physically fitting them would be hard. Thinking of solens, or maybe wima.
-Raccoon
The plan to replace the following
-opamps
-transistors
-electrolytic caps
-mylar caps
-carbon comp resistors
First, I am looking at the signal path caps. 8x 5uf axial electrolytic caps, and the output caps 4x 16uf NP caps. (One per channel, there are 4 channels!)
I see two options for the 5uf caps. Panasonic has 5uf polyester caps. And 4.7uf polypropylene caps. Would the 4.7uf ones be close enough? I'd prefer to use the polypropylene ones. You can find the SM on hifiengine, they are on page 10, near the op-amps.
For the output caps, it would be good to use polypropylene as well. But physically fitting them would be hard. Thinking of solens, or maybe wima.
-Raccoon
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