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70Pcs 14 Values Three Terminal Positive Negative Voltage Regulator Transistor Kit T0-220 (L7805, L7806, L7808, L7809, L7812, L7815, L7908, LM317)
Specifications:
- Product Name: Positive Voltage Regulator
- Package Quantity: 70pcs (Each model 5pcs)
- Packed in A Rugged Convenient Re-sealable Plastic Storage Case.
- Model: L7805, L7806, L7808, L7809, L7812, L7815, L7824, L7905, L7906, L7908, L7909, L7912, L7915, LM317.
Character
It can be used as a basic semiconductor device for controlling current and as a non-contact switch.
Function
Positive voltage regulator generally used for the protection circuit of DC circuits, it plays a role in reducing voltage and stabilizing voltage.
Easy to store
Each transistor has clear markings, making it easy for you to quickly identify the type of transistor you need.
Wide uses
This is a great assortment of transistors for electronic professionals or enthusiasts
Paul
2025-08-28 09:33:30
Bought these for my stock. Have yet to use any, but seem to be decent quality.
Douglas MacLean
2025-08-25 14:43:07
All work fine so far, have tested about 20 of them.
peederj
2025-08-15 21:10:33
I haven’t tested this useful set but I can confirm the legends on the parts are fully legible. At least the set I received. That review was worrying. Could have been a bad set or may need an eye appointment.If you are obsessive with critical value readings you ought to be buying fancier parts in the first place, my guess is these are probably roughly within the tolerances of your resistors you’d be adjusting them with anyway. Who knows the source voltages in that reviewer's case as well.
Brian
2025-07-10 15:10:38
These function as expected ... at least the three I've used so far have ... but they definitely feel lightweight as compared to the originals I've been replacing. I use these for 1980's arcade game repairs and they do work.
ER guy
2025-07-06 11:14:06
So far I used 7805, 7812 and 7915. The voltages are very accurate with Fluke meter. Great kit to have and very handy.
Michael
2025-05-30 10:58:14
These regulators work well. I have used a few types and they have performed as expected.
MAGstar
2025-05-12 17:00:59
Great
Ben
2025-04-01 10:14:51
This assortment is described above as being capable of one amp.A couple of caveats:o I have tested all of the 7805, 7812, and 7912 regulators in the set, and all of them shut down to about 2 volts when .75 amperes was exceeded (although one of the 7805 devices went into oscillation when .75 amperes was exceeded.) All tests were done with massive heat-sinking and precision current loads, and an input voltage that did not fall below the regulator's minimum input voltage. The regulators don't overheat, they just shut down.o There may be legends on these parts, but they are so faint I can't see them. So be careful which portion of the container you're getting your regulator out of, and TEST to be sure it's what you think it is before committing to solder and mount.Other than those two issues, this is a very handy assortment for the bench; certainly not every project needs a full ampere of supply current.. I'd love to find an assortment of actual one amp regulators, though.
Customer
2025-03-26 18:38:34
Fast shipping
Dougle
2025-03-07 14:17:06
I only needed a couple of these, but got a box as they will eventually all get used!
Jim
2025-02-14 10:35:19
Reliable stable performance
John B
2024-12-18 15:31:31
I have a box of junk regulators. 2 worked. As there were 70 of them I didn't test them until I found a bad one. If anyone has a box of them, and only use them occasionally, they could have the same problem. I tested them with a component tester, and in a test circuit, just to be sure. As there were 70 of them this took some time. Maybe l was just unlucky with this batch.
chrispenycate
2024-11-26 17:53:41
Always need a few stabilisers around - never know when a small, self-powered unit might turn out useful.
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