Hello,
I am in the process of revising my two a750s and two a2000s, since I have them I have had breakdowns with the bt139 triacs or small dead capacitors (on the 15v power supply).
But I have ignition "junction" noises on one of them, I want to change the op amp to see, but not easy to find..
Do you know what to replace ssm-2131 with? And also op42? (which can be found, but expensive..).
Besides, it's weird, I have an a2000 with op42 even on the front panel.
Do you have an idea of the original configuration? (if there is one).
Thanks!
Adrien
I am in the process of revising my two a750s and two a2000s, since I have them I have had breakdowns with the bt139 triacs or small dead capacitors (on the 15v power supply).
But I have ignition "junction" noises on one of them, I want to change the op amp to see, but not easy to find..
Do you know what to replace ssm-2131 with? And also op42? (which can be found, but expensive..).
Besides, it's weird, I have an a2000 with op42 even on the front panel.
Do you have an idea of the original configuration? (if there is one).
Thanks!
Adrien
Hello,
I really can't find much.. I think I could replace with opa627 or opa828 but not easier to find (and not cheaper).
With a similar slew rate there is the tle2071 but the CMRR is not great..
Anyone have another idea?
Thanks
I really can't find much.. I think I could replace with opa627 or opa828 but not easier to find (and not cheaper).
With a similar slew rate there is the tle2071 but the CMRR is not great..
Anyone have another idea?
Thanks
Take a look:
And 40V/us is way too much, 20 is about the limit for audio, so look at the OPA2134 as well.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjiiPy6krb9AhUL6HMBHQN_D94QFnoECAkQAQ&url=https://www.ti.com/lit/gpn/tle2071&usg=AOvVaw2uTOM2RPXE81surImjdpPW
And 40V/us is way too much, 20 is about the limit for audio, so look at the OPA2134 as well.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjiiPy6krb9AhUL6HMBHQN_D94QFnoECAkQAQ&url=https://www.ti.com/lit/gpn/tle2071&usg=AOvVaw2uTOM2RPXE81surImjdpPW