John Curl's Blowtorch preamplifier - Page 116

lumanauw · 4th May 2006, 08:14 PM

Hi, PMA,

I wouldn't want to fly in that airplane

My amps are WITH feedback until this minute, I just think that things can be make better if we understand the merit/drawback of each.

What is Sopwith Camel?

PMA · 4th May 2006, 08:16 PM

Hi David,

this was Sopwith Camel:

http://en.wikipedia.org/wiki/Sopwith_Camel

Panelhead · 4th May 2006, 08:58 PM

Quote:

Originally posted by PMA
Regarding pots - I remember well the story when my breadboard prototype of prestandard preamp (with 2,- USD plastic Piher pot)defeated renowned highend preamp rated at 8.500,- USD, and I also remeber faces of highend studio people when I showed them what was inside my casework ...

Looking at your website, there are schematics of several differing designs. Which is your current favorite?

George

GRollins · 4th May 2006, 09:07 PM

tvi,
The schematic you posted in #1125 is indeed what I was trying to describe. Thanks.

Grey

Upupa Epops · 4th May 2006, 09:21 PM

Pavel was talking about Dispre, George...

john curl · 4th May 2006, 09:30 PM

I have used Alps pots in MANY preamps. TKD is better. Penny & Giles is also better. Please, before criticizing, learn more. Thanks in advance.

Upupa Epops · 4th May 2006, 09:35 PM

I'm not criticise, I need learn more, John... So why is better ?

Ultima Thule · 4th May 2006, 09:37 PM

Haha.. those analogies, cars, aeroplains.. well, we don't need anything in a simple small aeroplain, aerodynamically stable plain need only a Otto motor, throttle and rudder, the feedback is the pilot himself!

John,

going back couple of days or so when cables wher up on the topic, what would you think of cables with plastic conductive shield?

Cheers Michael

Peter Daniel · 4th May 2006, 09:40 PM

Quote:

Originally posted by Upupa Epops
Sound of pots ?

Upopa, are you serious?

Upupa Epops · 4th May 2006, 09:41 PM

And Penny and Giles : Sometimes I had in table some preamp, where was these round blue beauty : two pots mechanicaly connected together - ganging was horrible...

4th May 2006, 09:37 PM	#1158
Ultima Thule diyAudio Member Join Date: Jan 2004 Location: Koskenkorva Land	Haha.. those analogies, cars, aeroplains.. well, we don't need anything in a simple small aeroplain, aerodynamically stable plain need only a Otto motor, throttle and rudder, the feedback is the pilot himself! John, going back couple of days or so when cables wher up on the topic, what would you think of cables with plastic conductive shield? Cheers Michael __________________ "If transistors are blueberries and FETs are strawberries, then tubes must be.. pears" Michael 29th January 2010

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4th May 2006, 08:14 PM	#1151
lumanauw diyAudio Moderator Emeritus Join Date: Oct 2002 Location: Bandung	Hi, PMA, I wouldn't want to fly in that airplane My amps are WITH feedback until this minute, I just think that things can be make better if we understand the merit/drawback of each. What is Sopwith Camel?

4th May 2006, 08:16 PM	#1152
PMA diyAudio Member Join Date: Apr 2002 Location: Prague, Kitakyushu, Fukuoka	Hi David, this was Sopwith Camel: http://en.wikipedia.org/wiki/Sopwith_Camel

4th May 2006, 09:07 PM	#1154
GRollins diyAudio Member Join Date: Feb 2001 Location: Columbia, SC	tvi, The schematic you posted in #1125 is indeed what I was trying to describe. Thanks. Grey

4th May 2006, 09:21 PM	#1155
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	Pavel was talking about Dispre, George...

4th May 2006, 09:30 PM	#1156
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	I have used Alps pots in MANY preamps. TKD is better. Penny & Giles is also better. Please, before criticizing, learn more. Thanks in advance.

4th May 2006, 09:35 PM	#1157
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	I'm not criticise, I need learn more, John... So why is better ?

4th May 2006, 09:41 PM	#1160
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	And Penny and Giles : Sometimes I had in table some preamp, where was these round blue beauty : two pots mechanicaly connected together - ganging was horrible...

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