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19th November 2011, 03:09 AM
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#1 |
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diyAudio Member
Join Date: Jan 2005
Location: Chicago
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41hz.com Amp5 and Amp2 Kits
Hey all,
Just cleaning out some old boxes and found two 41hz kits I bought years ago that were thought to be long lost in a move. Amp5 - brand new, all parts still in packages. PCB says Rev 1. They sell new at $80. $50 will take it shipped CONUS. Amp2 - Partially complete - bought from a gentleman on this site years ago and never got to building it. Both chips are installed / soldered onto pcb board. All parts are included, but cannot be sure as I never opened the bag. Instructions are also included. PCB says Amp2 Rev 1. These sell new for $110, so how about $65 shipped CONUS? Pics if someone asks...
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"I speak Spanish to God, Italian to Women, French to Men, and German to my Horse" - Charles V Last edited by john65b; 19th November 2011 at 03:17 AM. |
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27th December 2011, 02:27 AM
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#8 |
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Soakin' up the Sound!
diyAudio Member
Join Date: Feb 2008
Location: Bismarck, ND
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John,
I see on the 41Hz website that the Amp5 has its own PS on-board. Do you know what size transformer this would need? I am interested, depending how much more it would cost to make a fully operational amp. Thanks, Mike
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 Marantz PM8003 amp, Squeezebox Touch, DIY Krystals
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27th December 2011, 12:33 PM
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#9 |
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diyAudio Member
Join Date: Jan 2005
Location: Chicago
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Mike, are you running 4 ohm or 8 ohm speakers?
For 4 ohms, stay lower on voltage - around 18V secondaries, while 8 ohm stay around 24v secondaries. VA rating should be around 250 - 300. I may have one or two trannies...I could throw together a package deal. I don't remember if this version had the onboard PS caps/rectifier...I will check, but I think it does... Edit - yes, it does have the onboard PS.
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"I speak Spanish to God, Italian to Women, French to Men, and German to my Horse" - Charles V Last edited by john65b; 27th December 2011 at 12:45 PM. |
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27th December 2011, 04:03 PM
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#10 |
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Soakin' up the Sound!
diyAudio Member
Join Date: Feb 2008
Location: Bismarck, ND
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John,
I have a 21 volt transformer (21-0-21) and I know I have another CT transformer in my pile of e-parts, too. so... you can consider the Amp5 sold. You have a PM. Thanks, Mike
__________________
Marantz PM8003 amp, Squeezebox Touch, DIY Krystals
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