Hi all, I've got projects coming up that require adding additional opamp stages to existing equipment. Thus I am on the hunt for a good pre-made PCB breadboard that can hold one or two 8-pin dual opamps & the usual supporting parts.
I haven't bought any of these since Radio Shack led the way lol. Who makes decent ones these days? Many thanks...
I haven't bought any of these since Radio Shack led the way lol. Who makes decent ones these days? Many thanks...
These days you might find an existing open source design, or design your own, and order from OSHPark or the like,
for instance I made a generic Sallen/Key stage like this:
Can provide the .brd file if this of interest.
for instance I made a generic Sallen/Key stage like this:
Can provide the .brd file if this of interest.
For point-to-point stuff I always use Vector (Vector Electronics) boards with plated through-holes from Digi-Key.
I searched Amazon and got 10 boards of various sizes including 6.5" by 3.5 "
Thie big one is going to be a 6922 super Triode amp.
Thie big one is going to be a 6922 super Triode amp.
I've been using the adafruit boards. Plated thru holes, and available in 1/4 1/2 and full size. Price is pretty good too. Digikey stocks them as well. Search for adafruit 1606 for the full size on digikey. In stock 6.95 each
If I recall correctly, Reichelt has a pretty good assortment of them, including perfboards with a ground plane on one side and boards with sections for SMDs. They also have SMD adapter boards.
mcm pn 21-4590 dip prototyping board for 25 0.1" dual in line leg pairs. https://www.newark.com/mcm/21-4590/board-type/dp/38C9100 They also had a board with other numbers of holes 21-4575 21-4580 21-4600 . mcm was a brand name of farnell, in the US called newark.com About 1/10 the price of vector board.
I like the way the pads spread the connections out where you can solder them with #30 wire without the solder all glomming together. Solder connections are permanent, unlike push in wire proto boards that can oxidize & lose connection. Room on the edges for resistors capacitors & I/O. There are holes in the corners to use #6 machine screws or 3 mm screws with standoffs to attach to something so the wires don't touch the metal.
I like the way the pads spread the connections out where you can solder them with #30 wire without the solder all glomming together. Solder connections are permanent, unlike push in wire proto boards that can oxidize & lose connection. Room on the edges for resistors capacitors & I/O. There are holes in the corners to use #6 machine screws or 3 mm screws with standoffs to attach to something so the wires don't touch the metal.
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