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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Morrison Micro 3.5 Is it polarized or not , poly or not ? posted by Les Hudson on March 16, 2007 at 07:10:34:
Original schematic from Sound Practices called for Solen Poly caps, but you could use whatever kind of cap you like, I suppose. Joe Roberts built one (a Micro 3.5) using Western Electric paper in oil caps and Magnequest DS 025 OTs. I'm about to try this circuit again with vintage paper in oils and Tango XE-20S.And the cathode resistor on the 2A3 is so high because of the amp being direct-coupled. Cathode voltage on the 2A3 is raised to the level of the plate voltage on the 6SL7, therefore, larger resistor. BTW, I've built this amp before and it sounds pretty good.
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Follow Ups
- Re: Morrison Micro 3.5 Is it polarized or not , poly or not ? - gilmorneau 08:35:17 03/16/07 (1)
- Re: Morrison Micro 3.5 Is it polarized or not , poly or not ? - Les Hudson 09:13:01 03/16/07 (0)
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