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RE: Advice on getting a 45 built

Posted by Stuben (A) on December 16, 2014 at 11:27:55

In Reply to: Advice on getting a 45 built posted by TAdams on December 16, 2014 at 09:23:13:

Hey TAdams,

Just a couple of questions and observations:

1. Is this your first build? If yes, please do a web search on safe practices..can't enjoy your work if you're lying dead in a puddle of piss.

2. keep it simple. A DC couple amp with multiple inputs and the ability to drive a load like headphones for a first build is a bit ambitious. Others on the forum might encourage you...obviously your choice.

3. There are simple RC or IT coupled designs out there that will let the magic out. I found Parafeed fairly simple to implement with a little tweaking of the cap. You can achieve a good sounding quiet design and leave room for more complexity in the future.

4. Prototype the amp on a board. Just keep kids and pets away.

5. After you're happy with the prototype, move to chassis and follow good mounting an grounding practices...just search this forum. Then you work on a quiet build.

6. A good middle of the road OPT that I like is Lundahl SE LL1663 5K primaries gapped for 50mA will do nicely. Around $350.00 for a pair. They are C core and ugly, but good sounding. You will want to hide them...

7. With 2 glorious watts to work with, your speaker drivers will need to be at least 98db/watt efficient. You can go less efficient in a crutch. You will loose much of the magic though...

Good luck...use this forum, ignore the bickering..many of our members are suffering from low "T" and tend to bicker like women...;> )

Stuben

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