Great for workshop or maintenance spare parts
These Op amps are the audio workhorses in the audio industry, been around for years and still commonly used
TEXAS INSTRUMENTS - Op Amp
Type: NE5534P
Single Op amp
High Speed
Unity gain bandwidth 10Mhz
DC supply 10V to 30V
High performance operational amplifiers
Combines excellent DC and AC characteristics.
Very low noise
High output drive capability
Low distortion
High slewrate
High DC Voltage Gain
Output short circuit protection
Full data on these devices is readily obtainable online and I have provided a 'snapshot' of the technical specifications in one of the photographs with this advertisement
Commonly used in professional audio input stages, open up just about any professional audio equipment and there will be one of the NE553x family, the packaging has changed over the years (DIP to SMD) but the device just keeps on keeping on...
New Old Stock and stored in ESD material (some in tubes, some on ESD foam and sealed)