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tl072c and tl074 best replace Dynamics Processors (HW)
Old 24th November 2009
  #1
Gear Head
 

Question tl072c and tl074 best replace

Hi to all, what is the better solution to replace and upgrade the tl072c and tl074 in the output state of digi002r? thank you
Old 26th November 2009
  #2
Lives for gear
 
mexicola's Avatar
 

there's a search feature up on the control panel.
lots of discussions about replacing these chips on this site.
Old 26th November 2009
  #3
Gear Head
 
rehepapp's Avatar
Pin to pin replacement LT 1358 for TL 072 & LT 1359 for TL 074.
Old 26th November 2009
  #4
Lives for gear
 
mexicola's Avatar
 

Quote:
Originally Posted by rehepapp View Post
Pin to pin replacement LT 1358 for TL 072 & LT 1359 for TL 074.
Yes, but you have to add psu decoupling caps to the opamp power rails if you're putting in LT's.
If you don't those opamps will oscillate and burn themselves out.
Old 28th November 2009
  #5
MsM
Gear Nut
 

Quote:
Originally Posted by rehepapp View Post
Pin to pin replacement LT 1358 for TL 072 & LT 1359 for TL 074.
LT 135x's have bipolar inputs, TL 07x's have FETs. Different properties.

Anybody care to comment when (in which circuit types) this matters?
Old 28th November 2009
  #6
Old 29th November 2009
  #7
Gear Head
 

thank you guys , but I need a very good replace , very compatible, for me modify the circuit is not a problem (resistor, capcitor, etc), but I need the right values!!!!
thnks
Old 29th November 2009
  #8
AD8512A, AD8513.

Jim Williams
Audio Upgrades
Old 30th November 2009
  #9
Gear Head
 

Tanks Jim, please the last advice, for these ne5532 and 4560??
for the recapping I have ordered the elna silmicII, what do u think of these capacitors?
Old 30th November 2009
  #10
Dual/quad fet opamp. Surface mount only. Better than BB opa134 series. Less offset. No guarantees on Avid, I don't work on them.

Don't waste money on audio el caps. The best caps have the least amount of loss. Those are the newer tantalum substitues like Rubycon Z, Nichicon HE and Panasonic FM. The rest is marketing BS.

Jim Williams
Audio Upgrades
Old 1st December 2009
  #11
Gear Head
 

Thanks Jim for your advices, I'll try next week-end to replace the ics
bye
Old 16th December 2009
  #12
Gear Head
 

thanks Jim, your advices has done very good results
Old 16th December 2009
  #13
Jim, I want to ask, in my Aphex 651 you modified you installed Nichicon ES capacitors. Why did you choose those over HE or FM capacitors, which are the only two series I've read you recommending.
Old 17th December 2009
  #14
Those are original Aphex parts. They are bypassed with wire on the rear of the pcb so the entire audio path is direct coupled.

Jim Williams
Audio Upgrades
Old 17th December 2009
  #15
Thanks Jim. The other two I have do not use those capacitors, but all 3 of the ones I have are different revisions.
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