Perf or veroboard with no pads.

[Zak28]

I am reluctant with protoboards incorporating metal pads - unsuccessfully searching for padless boards I inturn made this post.

 

[FvM]

You mean no-clad punchboards? They are available from many catalog distributors and DIY stores.

 

[spudboy488]

https://www.digikey.com/product-search/en/prototyping-products/prototype-boards-perforated/2359508?k=perfboard&k=&pkeyword=perfboard&pv128=47&FV=fff40024%2Cfff800d4%2C200002a%2C200002f%2C2000032&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25

There are some boards mixed into this search that have isolated copper around each hole for soldering but there are others without any copper and at various hole pitch.