I completed my amp!

peppennino · 5th May 2006, 08:07 AM

I just completed my new 300B SET amplifier! After months passed searching for the components and building the cabinets, I finally warmed the solder! Infinite THANKS to my friend Derek Walton for his precious aid! and also to Joseph Esmilla for his fantastic scheme that we used as starting point. It sounds marvellous to my ears!!
Ciao a tutti
Vincenzo
http://homepage.mac.com/parisatnight...otoAlbum2.html

Geek · 5th May 2006, 08:31 AM

Nice work!

How on earth do you get the dovetails right? I have a dovetail bit for my router and always manage to scew it up

owen · 5th May 2006, 08:49 AM

Great work...

Those dovetails look hand cut to me - Kudos!

Owen

bibster · 5th May 2006, 08:55 AM

peppennino,

That looks wonderfull!!!!!

Dovetails... I don't even dare to think about it... alltough there seem to be kits with routerbits en guides that make the job easier...

Paul

Trout · 5th May 2006, 11:15 AM

WOW!!

That looks wonderful!!!

I love the wood knob!!
Trout

dstockwell · 5th May 2006, 11:26 AM

very nice...

Giaime · 5th May 2006, 11:41 AM

Ciao Vincenzo!!!

Can you tell me where you get the transformers, tubes, those big cromed capacitors, etc?

Thank you very much!

jaymanaa · 5th May 2006, 01:57 PM

Thanks for posting your amp and the link to your homepage. I am in the beginning stages of my first DIY tube job (just started drilling holes last night). Seeing real craftsmanship like your amp exhibits gives me much needed encouragement. Will any quality brand (Mars, GE, etc.) oil filled motor run cap do nicely, or are there certain types or brands to look for. I saw some on E-Pay that touted non-magnetic terminals. I just wandered if I need to be aware of any to stay away from. Thanks again and beautiful work, Jay

P.S. I don't think I'm ready to try those dove-tails just yet, but maybe on the next

ttan98 · 5th May 2006, 04:13 PM

beautiful amp!!!!

I don't want to sound negative, the B+ @ 425VDC on the 300B is too much I believe that will reduce the the reliability of this EXPENSIVE tube....At this voltage you will only gain 1-2 watts extra...

dsavitsk · 5th May 2006, 05:00 PM

Quote:

Originally posted by ttan98
I don't want to sound negative, the B+ @ 425VDC on the 300B is too much I believe that will reduce the the reliability of this EXPENSIVE tube....At this voltage you will only gain 1-2 watts extra...

Really? I have a set of Welborne 300B amps, and he has the B+ set at 550V, and he calls these the low volt version. I think 425V is fine for 300B's. In fact, I use cheap valve art tubes that have a lower than normal plate dissipation, and they have been fine for the better part of a year.

5th May 2006, 08:07 AM	#1
peppennino diyAudio Member Join Date: Oct 2005 Location: Palermo	I completed my amp! I just completed my new 300B SET amplifier! After months passed searching for the components and building the cabinets, I finally warmed the solder! Infinite THANKS to my friend Derek Walton for his precious aid! and also to Joseph Esmilla for his fantastic scheme that we used as starting point. It sounds marvellous to my ears!! Ciao a tutti Vincenzo http://homepage.mac.com/parisatnight...otoAlbum2.html

5th May 2006, 01:57 PM	#8
jaymanaa diyAudio Member Join Date: Jan 2006 Location: Kansas	Thanks for posting your amp and the link to your homepage. I am in the beginning stages of my first DIY tube job (just started drilling holes last night). Seeing real craftsmanship like your amp exhibits gives me much needed encouragement. Will any quality brand (Mars, GE, etc.) oil filled motor run cap do nicely, or are there certain types or brands to look for. I saw some on E-Pay that touted non-magnetic terminals. I just wandered if I need to be aware of any to stay away from. Thanks again and beautiful work, Jay P.S. I don't think I'm ready to try those dove-tails just yet, but maybe on the next __________________ "Make everything as simple as possible, but no simpler" Einstein

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5th May 2006, 08:31 AM	#2
Geek diyAudio Member Join Date: Sep 2004	Nice work! How on earth do you get the dovetails right? I have a dovetail bit for my router and always manage to scew it up

5th May 2006, 08:49 AM	#3
owen diyAudio Member Join Date: Mar 2004 Location: Shilton	Great work... Those dovetails look hand cut to me - Kudos! Owen

5th May 2006, 08:55 AM	#4
bibster diyAudio Member Join Date: Aug 2004 Location: Lasbordes, 11400	peppennino, That looks wonderfull!!!!! Dovetails... I don't even dare to think about it... alltough there seem to be kits with routerbits en guides that make the job easier... Paul

5th May 2006, 11:15 AM	#5
Trout diyAudio Member Join Date: Nov 2004 Location: Midwest Madman	WOW!! That looks wonderful!!! I love the wood knob!! Trout

5th May 2006, 11:26 AM	#6
dstockwell diyAudio Member Join Date: Jul 2005 Location: Georgia	very nice...

5th May 2006, 11:41 AM	#7
Giaime diyAudio Member Join Date: Oct 2004	Ciao Vincenzo!!! Can you tell me where you get the transformers, tubes, those big cromed capacitors, etc? Thank you very much!

5th May 2006, 04:13 PM	#9
ttan98 diyAudio Member Join Date: Apr 2006 Location: Melb	beautiful amp!!!! I don't want to sound negative, the B+ @ 425VDC on the 300B is too much I believe that will reduce the the reliability of this EXPENSIVE tube....At this voltage you will only gain 1-2 watts extra...