diyAudio (
-   Parts (
-   -   HA12017 - SIP-8 packaged Opamp (

Rody 26th January 2005 08:42 PM

HA12017 - SIP-8 packaged Opamp
Can somebody tell me the pinouts of a SIP-8 type opamp? To be more specific: the HA12017.
This thing is almost impossible to find, and i'd like to replace it with a OPA134.
The problem is that i dont know which pin is wich.
On the schematic the HA12017 has pin6 for IN+, pin7 for IN- and PIN1 for OUT, but i dont know what 5 and 3 do, possibly offset pins?

Another general question: Is 4.5 volts enough for opamps, or should i feed them with 9 volts? For example the TL072.

Sorry for my "english" :D


Rody 27th January 2005 08:18 AM

2 Attachment(s)
this is the circuit, where the HA12017 should be replaced. Maybe this helps. what is pin 3 and 5?

Netlist 27th January 2005 08:28 AM

Try here:

/Hugo :)

Rody 27th January 2005 10:32 AM

I've found it! :) Now i only have to figure out how to replace it.

Thank You!

Rody 27th January 2005 06:28 PM

Uhhh.. God knows i've tried, i'm just not too much experienced in this. I dont know how to replace the opamp, cause the HA12017 seems like a much more different construction, and i cant do anything with pins 3 and 5, the OPA134 dont have such functionality. So propably, i would have to change the resistor and capacity values nearby, and to redesign some parts, and this is too much for me. (Ok i know, i should have started with an easier project, but this equalizer looks very interesting)
Some help, or some "how-to" links would be appreciated...


All times are GMT. The time now is 01:14 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 18.75%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio