#26 pre amp - Page 240

merlin el mago · 05:21 PM

If I put another nut can reach 4mm, the space between resistors is 6mm, is enough?

DimZ · 28th January 2013, 05:21 PM

vgeorge uses some 90W monster dales (post 1450) ...

dont know where he got them, but you must have plenty of room for those ....

merlin el mago · 28th January 2013, 06:20 PM

Quote:

Originally Posted by mogliaa

They will survive if running at 1A, but I'd look at those 5mm metal spacers...
Ale

Quote:

Originally Posted by mogliaa

Btw: Noise is proportional to Temperature so you want to run them as cool as you can...

Ale, what about now?

Felipe

andyjevans · 28th January 2013, 07:06 PM

That's better Filipe. Looks good to me.

I've gone back to my 26 preamp with the two 156C in series and updated the power supply a bit. The hum is still there but not audible from my listening seat, just close up to the speaker. So that's proof to me that the 156C option is viable. I must say it sounds really nice with the FT-2 teflon output caps. I'm using a couple of ordinary commercial 12v DC supplies - probably switch mode I'd guess though I haven't got inside them. They sound much better than I'd expect!

andyjevans · 28th January 2013, 07:30 PM

Here's some pics. Utilitarian look!!

merlin el mago · 28th January 2013, 07:33 PM

Quote:

Originally Posted by andyjevans

That's better Filipe. Looks good to me.

I've gone back to my 26 preamp with the two 156C in series and updated the power supply a bit. The hum is still there but not audible from my listening seat, just close up to the speaker. So that's proof to me that the 156C option is viable. I must say it sounds really nice with the FT-2 teflon output caps. I'm using a couple of ordinary commercial 12v DC supplies - probably switch mode I'd guess though I haven't got inside them. They sound much better than I'd expect!

Thanks Andy,

Try FT-3 in place of FT-2, huge difference: I have both.

Cheers, Felipe

merlin el mago · 28th January 2013, 07:34 PM

Quote:

Originally Posted by andyjevans

Here's some pics. Utilitarian look!!

All our projects looks utilitarian after seen rclourenco work

iko · 28th January 2013, 07:50 PM

Quote:

Originally Posted by merlin el mago

All our projects looks utilitarian after seen rclourenco work

+1

After seeing his work, I'm terrified to show pictures of mine!

andyjevans · 28th January 2013, 09:00 PM

Quote:

Originally Posted by merlin el mago

Try FT-3 in place of FT-2, huge difference: I have both. Cheers, Felipe

Really? I couldn't hear any difference at all! Should I try again?

Andy

merlin el mago · 28th January 2013, 09:21 PM

If you need I send you a couple.

Felipe

28th January 2013, 05:14 PM	#2391
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	If I put another nut can reach 4mm, the space between resistors is 6mm, is enough? Last edited by merlin el mago; 28th January 2013 at 05:21 PM.

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28th January 2013, 05:21 PM	#2392
DimZ diyAudio Member Join Date: Nov 2007 Location: athens	vgeorge uses some 90W monster dales (post 1450) ... dont know where he got them, but you must have plenty of room for those ....

28th January 2013, 09:21 PM	#2400
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	If you need I send you a couple. Felipe