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Crossover op-amps



 
 
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  #11 (permalink)  
Old November 6th 13, 06:28 PM posted to uk.rec.audio
Woody[_4_]
external usenet poster
 
Posts: 145
Default Crossover op-amps

"RJH" wrote in message
...
On 05/11/2013 20:09, Woody wrote:
snip

The source was either CD or LP with AT90E(?) m/c cartridge
feeding the Quad, thence a home built dual mono power Mosfet
amp
using amp boards from Ambit (remember them?) and a regulated
supply designed by the great JLH, into a pair of transmission
line speakers to the Dr Bailey design from WW 1972 (oh how I
loved those speakers.) In an 18x12ft lounge I could rattle the
windows with the pedal reeds from the organ of Limburg
Cathedral - pity that disc went walkies.

Them were't days................


Do you happen to have the speaker design?
--
Cheers, Rob



Funnily enough I think I might. Send me your e-mail off group and
I'll see what I can do, probably at the weekend.

The mail address below my signoff is valid.


--
Woody

harrogate three at ntlworld dot com


  #12 (permalink)  
Old November 6th 13, 08:03 PM posted to uk.rec.audio
Phil Allison[_2_]
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Posts: 635
Default Crossover op-amps


"Trevor Wilson"
Dave Plowman (Nutcase)
I've been playing with this active crossover

http://sound.westhost.com/project09.htm

and have used TL072 which I have lots of. But wondered what would be
better - without paying a fortune?


**I'm rather partial to the AD825. Modestly priced and very high
performance.



** LOL

That is not only an SMD part it is a SINGLE op-amp too, while the TL072 is a
dual.

Useless advice.


..... Phil



  #13 (permalink)  
Old November 6th 13, 08:25 PM posted to uk.rec.audio
Trevor Wilson
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Posts: 801
Default Crossover op-amps

On 7/11/2013 8:03 AM, Phil Allison wrote:
"Trevor Wilson"
Dave Plowman (Nutcase)
I've been playing with this active crossover

http://sound.westhost.com/project09.htm

and have used TL072 which I have lots of. But wondered what would be
better - without paying a fortune?


**I'm rather partial to the AD825. Modestly priced and very high
performance.



** LOL

That is not only an SMD part it is a SINGLE op-amp too, while the TL072 is a
dual.

Useless advice.


.... Phil




**You managed to snip my extra information pertaining to the use of the
AD825.

Which begs the question:

Why snip my VERY SPECIFIC advice, then claim my advice was useless.

Stupid, ignorant ****.



--
Trevor Wilson www.rageaudio.com.au
  #14 (permalink)  
Old November 6th 13, 08:26 PM posted to uk.rec.audio
Trevor Wilson
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Posts: 801
Default Crossover op-amps

On 6/11/2013 7:09 AM, Woody wrote:
Re-read the OP. You're talking about active crossovers so
probably running at relatively high levels. IME you would be
probably spending money unneccessarily - the TL072 is quite good
at higher levels.


**The AD825 is much better.


--
Trevor Wilson www.rageaudio.com.au
  #15 (permalink)  
Old November 6th 13, 10:19 PM posted to uk.rec.audio
Phil Allison[_2_]
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Posts: 635
Default Crossover op-amps


"Trevor Wilson"
Phil Allison wrote:
"Trevor Wilson"
Dave Plowman (Nutcase)
I've been playing with this active crossover

http://sound.westhost.com/project09.htm

and have used TL072 which I have lots of. But wondered what would be
better - without paying a fortune?


**I'm rather partial to the AD825. Modestly priced and very high
performance.



** LOL

That is not only an SMD part it is a SINGLE op-amp too, while the TL072
is a
dual.

Useless advice.



**You managed to snip my extra information pertaining to the use of the
AD825.



** Not true at all.

I restated the bit about SMD and supplied important info that YOU left out.

Because it is only a SINGLE op-amp, it cannot be used with the PCB for that
project.

Capice ???


Which begs the question:

Why snip my VERY SPECIFIC advice, then claim my advice was useless.



** Cos it was *useless*

- you ****ing, STUPID arsehole !!!!!!!!!!!!


Stupid, ignorant ****.



** You don't want me as an enemy, Trevor.




..... Phil


  #16 (permalink)  
Old November 6th 13, 10:21 PM posted to uk.rec.audio
Phil Allison[_2_]
external usenet poster
 
Posts: 635
Default Crossover op-amps


"Trevor Wilson"
Woody wrote:

Re-read the OP. You're talking about active crossovers so
probably running at relatively high levels. IME you would be
probably spending money unneccessarily - the TL072 is quite good
at higher levels.


**The AD825 is much better.



** Pedantic, self referencing, autistic nut case crap.




..... Phil



  #17 (permalink)  
Old November 6th 13, 10:24 PM posted to uk.rec.audio
Trevor Wilson
external usenet poster
 
Posts: 801
Default Crossover op-amps

On 7/11/2013 10:19 AM, Phil Allison wrote:
"Trevor Wilson"
Phil Allison wrote:
"Trevor Wilson"
Dave Plowman (Nutcase)
I've been playing with this active crossover

http://sound.westhost.com/project09.htm

and have used TL072 which I have lots of. But wondered what would be
better - without paying a fortune?


**I'm rather partial to the AD825. Modestly priced and very high
performance.


** LOL

That is not only an SMD part it is a SINGLE op-amp too, while the TL072
is a
dual.

Useless advice.



**You managed to snip my extra information pertaining to the use of the
AD825.



** Not true at all.


**Absolutely true. Here is what you snipped:

You'll need to consider surface mount techniques though. Not available
in DIP. Brown Dog have suitable adapters.


I restated the bit about SMD and supplied important info that YOU left out.


**Wrong. Here is what you snipped:

You'll need to consider surface mount techniques though. Not available
in DIP. Brown Dog have suitable adapters.


Because it is only a SINGLE op-amp, it cannot be used with the PCB for that
project.


**If the OP was interested, I provided adequate information for him to
research that information. I even provided a source for DIP adapters.


Capice ???


Which begs the question:

Why snip my VERY SPECIFIC advice, then claim my advice was useless.



** Cos it was *useless*

- you ****ing, STUPID arsehole !!!!!!!!!!!!


**You're the moron who snipped the important information. Here it is
once mo

You'll need to consider surface mount techniques though. Not available
in DIP. Brown Dog have suitable adapters.




Stupid, ignorant ****.



** You don't want me as an enemy, Trevor.


**Then don't snip important information and call me names. I supplied
all the information required for the OP to use or not use the AD825
chips. Here is once mo

You'll need to consider surface mount techniques though. Not available
in DIP. Brown Dog have suitable adapters.


--
Trevor Wilson www.rageaudio.com.au
  #18 (permalink)  
Old November 6th 13, 11:04 PM posted to uk.rec.audio
Phil Allison[_2_]
external usenet poster
 
Posts: 635
Default Crossover op-amps


"Trevor Wilson"
Phil Allison wrote:
"Trevor Wilson"
Dave Plowman (Nutcase)
I've been playing with this active crossover

http://sound.westhost.com/project09.htm

and have used TL072 which I have lots of. But wondered what would be
better - without paying a fortune?


**I'm rather partial to the AD825. Modestly priced and very high
performance.


** LOL

That is not only an SMD part it is a SINGLE op-amp too, while the TL072
is a
dual.

Useless advice.



**You managed to snip my extra information pertaining to the use of the
AD825.



** Not true at all.


**Absolutely true. Here is what you snipped:

You'll need to consider surface mount techniques though. Not available in
DIP. Brown Dog have suitable adapters.


I restated the bit about SMD and supplied important info that YOU left
out.


**Wrong.


** No, you are wrong & insane.


Because it is only a SINGLE op-amp, it cannot be used with the PCB for
that
project.


**If the OP was interested, I provided adequate information for him to
research that information.


** Err - the ****ing part number ??

Wot a dishonest reply.


I even provided a source for DIP adapters.



** Which are no use to the OP.

Cos he needs an ** 8 pin, dual op-amp** !!!
-----------------------------------------------------


** Cos it was *useless*

- you ****ing, STUPID arsehole !!!!!!!!!!!!



Stupid, ignorant ****.



** You don't want me as an enemy, Trevor.


**Then don't snip important information



** I did ****ing not !!!

Grow up you pathetic ****head.


.... Phil




  #19 (permalink)  
Old November 6th 13, 11:11 PM posted to uk.rec.audio
Trevor Wilson
external usenet poster
 
Posts: 801
Default Crossover op-amps

On 7/11/2013 11:04 AM, Phil Allison wrote:
"Trevor Wilson"
Phil Allison wrote:
"Trevor Wilson"
Dave Plowman (Nutcase)
I've been playing with this active crossover

http://sound.westhost.com/project09.htm

and have used TL072 which I have lots of. But wondered what would be
better - without paying a fortune?


**I'm rather partial to the AD825. Modestly priced and very high
performance.


** LOL

That is not only an SMD part it is a SINGLE op-amp too, while the TL072
is a
dual.

Useless advice.



**You managed to snip my extra information pertaining to the use of the
AD825.


** Not true at all.


**Absolutely true. Here is what you snipped:

You'll need to consider surface mount techniques though. Not available in
DIP. Brown Dog have suitable adapters.


I restated the bit about SMD and supplied important info that YOU left
out.


**Wrong.


** No, you are wrong & insane.


**The records show that you are incorrect. Look at my original post.



Because it is only a SINGLE op-amp, it cannot be used with the PCB for
that
project.


**If the OP was interested, I provided adequate information for him to
research that information.


** Err - the ****ing part number ??



**Jeez, you want everything done for you. OK:

http://cimarrontechnology.com/single...rpn020302.aspx


Wot a dishonest reply.


I even provided a source for DIP adapters.



** Which are no use to the OP.

Cos he needs an ** 8 pin, dual op-amp** !!!
-----------------------------------------------------



Which is why I suggested the Brown Dog adapters.



** Cos it was *useless*

- you ****ing, STUPID arsehole !!!!!!!!!!!!



Stupid, ignorant ****.


** You don't want me as an enemy, Trevor.


**Then don't snip important information



** I did ****ing not !!!


**Yeah, you did. Read the thread.


Grow up you pathetic ****head.


... Phil






--
Trevor Wilson www.rageaudio.com.au
  #20 (permalink)  
Old November 6th 13, 11:26 PM posted to uk.rec.audio
Phil Allison[_2_]
external usenet poster
 
Posts: 635
Default Crossover op-amps


"Trevor Wilson" is a LYING ****


Because it is only a SINGLE op-amp, it cannot be used with the PCB for
that project.

**If the OP was interested, I provided adequate information for him to
research that information.


** Err - the ****ing part number ??

Wot a dishonest reply.



**Jeez, you want everything done for you. OK:

http://cimarrontechnology.com/single...rpn020302.aspx



** So NOW you finally post the *missing* ****ing link to the product
!!!!!!

So NOW you finally post the *missing* info about what the HELL a ****ing
"Brown Dog" is.

But STILL you will not post the *missing* fact that two 825s are needed
for each TL072.
---------------------------------------------------------------------------------------------------------

Some good advice for TW:

Go **** your dead mother - you stinking pile of sub human ASD ****ed ****.




..... Phil











 




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