More products that may interest radio amateurs, part 5
Another Friday (or maybe Saturday) roundup of interesting products I came across on AliExpress.
An inexpensive protection board for building 2S lithium battery packs, rated for up to 8 A, compact size - link, price $0.47–0.50, shipping extra.
A popular little single-channel Class D power amplifier rated at 60 W - link, price $1.28 + $0.55 shipping.
A rather unusual product: a set of belts for various equipment, tape recorders, VCRs, and so on. It got me thinking that if I ever need to bring something back to life, I wouldn't even know where to buy belts these days.
The set includes 30–40 belts in different sizes - link, price $0.66 + about the same again for shipping.
It may seem like a small thing, and it doesn't cost much, but it can make a significant difference to safety. These are self-adhesive cardboard rings for batteries. They should be stuck on the positive-terminal side to prevent the insulation from melting and shorting the cells if the connecting tabs get hot - link, $1 for 100 rings.
A controller board for a spot welder, though the seller's page has plenty of other interesting stuff too - link, $13.19 for the 100 A version.
An adjustable 50 V, 5 A converter. Basically, it's something like an RD6006, but with slightly lower specs and a lower price. Versions with a connection to a computer or smartphone are also available - link, price $28.47–33.49 depending on the version.
Somewhat like the well-known “Gophert” units, but with more extensive controls, a display, and PC connectivity. Output: 60 V, 5 A - link, price $58.55
I've reviewed a similar board before. It's also an adjustable converter; this one is the 60 V, 5 A version, but more powerful versions are available too - link, price $28.02.
A kit for building a 0–35 V, 0–5 A linear adjustable power supply—or, more precisely, a regulator board. There's also a review somewhere that covers the circuit and assembly process - link, price $14.94
A battery for hoverboards, rated at 4.4 Ah - link, price $25.20
Some kind of wild hybrid of a powerful UPS, a flashlight, and something else. It claims a capacity of up to 1920 Wh (48 V, 40 Ah). For comparison, a car battery has three times less capacity, but the price is insane. Link.
A123 26650 LiFePO4 batteries. I suspect they're genuine - link, price $4.75; discounts and some kind of coupon are available.
Interesting bipolar power supplies rated at 1000–1500 W - link, price $53.94–75.79 + $32 shipping.
Mean Well LRS-350 power supplies: compact, powerful, and reliable. I reviewed one of these units a while back - link, price depends on the output voltage: $34.88–37.72
Some kind of new product. I hadn't come across this adjustable converter before: up to 60 V, up to 6 A, with a display - link, price $36.99
Note: this is not a power supply, even though it has an enclosure; it's just a step-down converter. You can power it directly from a power supply, or (if I’m not mistaken) from a PD power supply, but the power will be limited.
A hidden outlet, with combinations such as outlet + USB and outlet + Ethernet - link, price $22.99
In general, I don’t like Chinese outlets, even very attractive and convenient ones, because they usually won’t fit in a standard 68 mm wall box. In this case, though, you could cut the outlet into a kitchen countertop, for example, where that isn’t an issue.
A genuinely useful item: plastic standoffs. I used to use metal ones, usually from computer case kits, but plastic ones are easy to cut down to the length you need, and they don’t conduct electricity - link, price $4.74
If you need metal ones, though, they’re available for the same price - link.
A clone of the Quad 405 amplifier, available in three versions: a kit without power transistors, a kit with transistors, and a fully assembled unit - link, price $22.22 - 37.18
A multifunction measuring instrument combined with a hidden wiring detector and flashlight. They did forget to include an ammeter, though - link, price $17.47 for the basic version with a non-inverted display.
ADS1013D oscilloscope, two channels, with a claimed bandwidth of up to 100 MHz - link, price $133.99
An inexpensive protection board for building 2S lithium battery packs, rated for up to 8 A, compact size - link, price $0.47–0.50, shipping extra.
A popular little single-channel Class D power amplifier rated at 60 W - link, price $1.28 + $0.55 shipping.
A rather unusual product: a set of belts for various equipment, tape recorders, VCRs, and so on. It got me thinking that if I ever need to bring something back to life, I wouldn't even know where to buy belts these days.
The set includes 30–40 belts in different sizes - link, price $0.66 + about the same again for shipping.
It may seem like a small thing, and it doesn't cost much, but it can make a significant difference to safety. These are self-adhesive cardboard rings for batteries. They should be stuck on the positive-terminal side to prevent the insulation from melting and shorting the cells if the connecting tabs get hot - link, $1 for 100 rings.
A controller board for a spot welder, though the seller's page has plenty of other interesting stuff too - link, $13.19 for the 100 A version.
An adjustable 50 V, 5 A converter. Basically, it's something like an RD6006, but with slightly lower specs and a lower price. Versions with a connection to a computer or smartphone are also available - link, price $28.47–33.49 depending on the version.
Somewhat like the well-known “Gophert” units, but with more extensive controls, a display, and PC connectivity. Output: 60 V, 5 A - link, price $58.55
I've reviewed a similar board before. It's also an adjustable converter; this one is the 60 V, 5 A version, but more powerful versions are available too - link, price $28.02.
A kit for building a 0–35 V, 0–5 A linear adjustable power supply—or, more precisely, a regulator board. There's also a review somewhere that covers the circuit and assembly process - link, price $14.94
A battery for hoverboards, rated at 4.4 Ah - link, price $25.20
Some kind of wild hybrid of a powerful UPS, a flashlight, and something else. It claims a capacity of up to 1920 Wh (48 V, 40 Ah). For comparison, a car battery has three times less capacity, but the price is insane. Link.
A123 26650 LiFePO4 batteries. I suspect they're genuine - link, price $4.75; discounts and some kind of coupon are available.
Interesting bipolar power supplies rated at 1000–1500 W - link, price $53.94–75.79 + $32 shipping.
Mean Well LRS-350 power supplies: compact, powerful, and reliable. I reviewed one of these units a while back - link, price depends on the output voltage: $34.88–37.72
Some kind of new product. I hadn't come across this adjustable converter before: up to 60 V, up to 6 A, with a display - link, price $36.99
Note: this is not a power supply, even though it has an enclosure; it's just a step-down converter. You can power it directly from a power supply, or (if I’m not mistaken) from a PD power supply, but the power will be limited.
A hidden outlet, with combinations such as outlet + USB and outlet + Ethernet - link, price $22.99
In general, I don’t like Chinese outlets, even very attractive and convenient ones, because they usually won’t fit in a standard 68 mm wall box. In this case, though, you could cut the outlet into a kitchen countertop, for example, where that isn’t an issue.
A genuinely useful item: plastic standoffs. I used to use metal ones, usually from computer case kits, but plastic ones are easy to cut down to the length you need, and they don’t conduct electricity - link, price $4.74
If you need metal ones, though, they’re available for the same price - link.
A clone of the Quad 405 amplifier, available in three versions: a kit without power transistors, a kit with transistors, and a fully assembled unit - link, price $22.22 - 37.18
A multifunction measuring instrument combined with a hidden wiring detector and flashlight. They did forget to include an ammeter, though - link, price $17.47 for the basic version with a non-inverted display.
ADS1013D oscilloscope, two channels, with a claimed bandwidth of up to 100 MHz - link, price $133.99
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ts2d31 микросхема, самоделки радиолюбителей стол, http
ts2d31 микросхема, самоделки радиолюбителей стол, http
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