This listing is for 4 adaptor boards only. This is version 3 in black, it is slightly smaller than version 2 (in blue) and the pitch of C1 has been increased to 5mm so that suitable components are easier to find.

The second photo shows various ways mounting pins (not included) can be soldered to them for insertion to the circuit board. Top-left shows the 8-pin horizontal mounting using 0.1" straight header pins, top-right shows 8-pin offset vertical mounting using 90 degree header pins, bottom-left shows 9-pin vertical mounting using straight header pins and bottom-right shows straight mounting using 22 SWG wire.

The board was designed for replacing dual operational amplifiers in vintage HiFi gear, which make much use of a SIL packages. The SIL pinout is equivalent to the NJM552S (9 pin), NJM4560L/S (9 pin), M5218L (8 pin) etc. The DIP/SOIC pinout is equivalent to the LM4562, NJM5532D, OPA2227 etc.