Photo Gallery - Page 49

MelB · 11th February 2005, 02:06 PM

Morning rdf:

No..never thought of using chassie as part of the circuit. I always just run ground wires from everything to the input ground....as you can see in the pic. Although now that you mention it the chassie would probably save a lot of wire. I see from the pictures here a lot of ways to improve on my mess in my next project.

Coulomb · 11th February 2005, 02:10 PM

Quote:

Originally posted by MelB
Morning rdf:

No..never thought of using chassie as part of the circuit. I always just run ground wires from everything to the input ground....as you can see in the pic. Although now that you mention it the chassie would probably save a lot of wire. I see from the pictures here a lot of ways to improve on my mess in my next project.

Actaully it would still be best to maintain a star ground implementation rather that use the chassis.

Regards

Anthony

rdf · 11th February 2005, 03:01 PM

Don't want to imply massive experience so YMMV but I used ground plane on an amplifier project originally designed for direct connection to crystal pickups. The input sensitivity is 0.1 volt. It's very, very quiet. In this case a PBC was used for the ground plane, I never did figure out how to attach wires to heavy copper. Too much heat required, the best idea I could come up with was machine screws through the copper sheet and nuts for a compression crimp. Then I woke up.

The next project looks like it's going to be an Aikido and no question the same technique will be used.

AndreaVTS · 11th February 2005, 03:20 PM

ehe

the input/driver stage is designed by Curcio.
I made the PCB by myself with Circad (www.holophase.com).
Yes, the amp use negative feedback.

adalin · 18th February 2005, 10:57 PM

My new amp

4x 6ch6 in a ppp design with 6c4 as phase splitters, still havent desided what the inputtube will be on the final amp, the schematic said 6br7 but Im not happy with that.

audiousername · 18th February 2005, 11:05 PM

Very nice - mitred woodwork that actually fits together properly

Coulomb · 18th February 2005, 11:06 PM

Nice symmetry you got going there.

Anthony

resident · 19th February 2005, 08:39 AM

Very nice!

16 tubes!?!?

Upupa Epops · 19th February 2005, 09:04 AM

Nice work, but have your children asbest gloves ?

planet10 · 19th February 2005, 10:05 AM

Quote:

Originally posted by Upupa Epops
Nice work, but have your children asbest gloves ?

Upuppa... you are like a broken record...

dave

18th February 2005, 10:57 PM	#485
adalin diyAudio Member Join Date: Jun 2004 Location: Gotenburg	My new amp 4x 6ch6 in a ppp design with 6c4 as phase splitters, still havent desided what the inputtube will be on the final amp, the schematic said 6br7 but Im not happy with that. __________________ Tubes 4 ever

18th February 2005, 11:05 PM	#486
audiousername diyAudio Member Join Date: Jul 2004 Location: Melbourne, Victoria	Very nice - mitred woodwork that actually fits together properly __________________ Jason

18th February 2005, 11:06 PM	#487
Coulomb diyAudio Member Join Date: Jul 2002 Location: Ancaster, Ontario	Nice symmetry you got going there. Anthony __________________ I like to stay current!

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11th February 2005, 02:06 PM	#481
MelB diyAudio Member Join Date: Feb 2005 Location: BC Canada	Morning rdf: No..never thought of using chassie as part of the circuit. I always just run ground wires from everything to the input ground....as you can see in the pic. Although now that you mention it the chassie would probably save a lot of wire. I see from the pictures here a lot of ways to improve on my mess in my next project.

11th February 2005, 03:01 PM	#483
rdf diyAudio Member Join Date: Jun 2004 Location: big smoke	Don't want to imply massive experience so YMMV but I used ground plane on an amplifier project originally designed for direct connection to crystal pickups. The input sensitivity is 0.1 volt. It's very, very quiet. In this case a PBC was used for the ground plane, I never did figure out how to attach wires to heavy copper. Too much heat required, the best idea I could come up with was machine screws through the copper sheet and nuts for a compression crimp. Then I woke up. The next project looks like it's going to be an Aikido and no question the same technique will be used.

11th February 2005, 03:20 PM	#484
AndreaVTS diyAudio Member Join Date: Jan 2005 Location: valve town	ehe the input/driver stage is designed by Curcio. I made the PCB by myself with Circad (www.holophase.com). Yes, the amp use negative feedback.

19th February 2005, 08:39 AM	#488
resident Account Disabled Join Date: Sep 2004 Location: Earth	Very nice! 16 tubes!?!?

19th February 2005, 09:04 AM	#489
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	Nice work, but have your children asbest gloves ?