Breadboard question

[R_W_B]

I've never owned or used a breadboard before, but considering purchasing one in my current price range. My questions are,

1. Apparently some are not "powered" ? I assume you have to add batteries or generators, rheostat ?

2. I'm looking at this (apparently older) one, -Elenco 9440 Breadboard With JW-350 Jumper Wire Set, Model 9480WK, but it says nothing about whether,
a. it has a power source
OR
b. what the voltage range is
OR
c. if it has an adjustable voltage source.

Appreciate any input.

 

[JimB]

1. Apparently some are not "powered" ? I assume you have to add batteries or generators, rheostat ?

A battery or some kind of mains power supply which provides 5v, 12v or whatever you need.

2. I'm looking at this (apparently older) one, -Elenco 9440 Breadboard With JW-350 Jumper Wire Set, Model 9480WK, but it says nothing about whether,
a. it has a power source
OR
b. what the voltage range is
OR
c. if it has an adjustable voltage source.

Just looking at a picture on Amazon, it appears to be plain breadboard sections mounted onto a (metal?) backing plate.
It has some terminals to connect an external power supply.
So, no power source, voltage range is not applicable, no adjustable voltage source.

JimB

 

[Pommie]

I use breadboards (BBs) a lot and find them very useful. All the BBs I have are unpowered.

Here's a picture of a couple that I've constructed.

A word of warning, I recently purchased some BBs from Futurelec and they were unusable. So, buy them from a reputable firm.

Edit, just to give you an idea, the good ones I buy locally cost me $12 each. In the above picture the circuits use 2 and 3 boards - left=2.

Mike.

 

[jpanhalt]

A word of warning, I recently purchased some BBs from Futurelec and they were unusable. So, buy them from a reputable firm.

I think that bears repeating. I got some small, cheap ones a while back. Not only was it hard to get wires into some of the holes, but once done, the electrical contact was unreliable. I now use them just for temporarily storing parts on my bench so they don't roll onto the floor.

John

 

[PCBWING]

I saw a transparent BB, which it can be seen the jack inside. Perhaps you guys should look at whether your local stores to sell them.

 

[JimB]

Well advtak, that is another blatant advert if ever ther was!

There seems to be a trend in hiding an advert in the form of a reply to a thread.

JimB