Planning to Build Rod's P37 DoZ Pre, Transistor Help? - diyAudio
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Old 26th February 2002, 08:21 PM   #1
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Location: Seattle, WA
Default Planning to Build Rod's P37 DoZ Pre, Transistor Help?

Hello,

I've been planning on replacing the horrible, noisy, old rackmount preamp that I've been using in my system right now with something else. Being that this is my first DIY audio project, and that I want to use the same case (and keep it cheap and simple) I think I've decided that I'm going to make Rod's Project 37 DoZ preamp.

I've been able to find all the parts I will need (even the 16VAC wall wart) except the transistors. At MTM I can find the BD139 and BC549, but instead of the BC559, they suggest the NTE159. Is this a direct, drop in replacement? Or will I need to change some values here and there?

Or should I just use different ones alltogether? If so, what? And would that mean other changes? I'm sorry this has been such a long post, and I appreciate any help people are willing to give.

Thanks,

Non
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Old 26th February 2002, 09:03 PM   #2
tiroth is offline tiroth  United States
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Where are you located? Mouser stocks BC559.
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Old 26th February 2002, 09:11 PM   #3
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West Coast US. Excellent. I didn't realize. Thanks Tiroth!
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Old 26th February 2002, 09:50 PM   #4
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Join Date: Aug 2001
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Hello,
Frontier Engineering( http://www.freng.com:8080/cgi-se/pro...cgi?cart_id%3d )has a very good selection of transistors.
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