Ex workshop spare parts and small manufacturing stock
ALL devices have been sourced through reputable local distributors such as RS Electronics, Farnell, WES and Rockby (Victoria) NOT direct import Chinese (often dodgy spec) devices
Found in a large number of older electronic designs, particularly those from Japan. Many will opt to substitute these Op amps with the NE5532, LM158, LM158A, LM358, LM358A, LM2904, LM2904Q, LM4558, and LM747 but on the other hand, it is often preferable to stay with the original "designed in" device.
There are subtle differences between the original JRC 4558D and the device types mentioned above, HERE is a link which may help decide which device to use (or confuse you even further!)
JRC (Japan Radio Corporation) - Dual Op Amp
Type: 4558D
Dual Op Amp
8 pin DIL plastic
Here is a generic photograph of the device, mine have identical print EXCEPT the batch number which is H164A
Technical datasheets are readily available online
COSMETIC CONDITION:
NEW
Old Stock
Shiny clean legs
Stored in and will be supplied in the anti-static tubing showing in the photograph
*** Where the photograph shows multiple devices, this advertisement pricing is for ONE device not all that are shown!