I want to reproduce an LFO circuit where the author uses NE5517N OTA. So I started form looking for the LTSpice model of NE5517. Unfortunately with no success, I decided to make NE5517 simulation and use it as subcircuit. But getting into the schematics downloaded from On Semiconductor web, I have faced some questions that are "legended" on this picture:
- What type of transistor is this (with 2 collectors going out of it)?
- What value is this R1 of could be?
- Where can I find the params of PNPs used in schematic.
- Where can I find the params of NPNs used in schematic.