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Maybe, if they work ill put the extra ones up with my RadionoI2C boards....

Nice. ?Are you selling these boards? Regards Simon VK3ELH

Im loving the cheap and easy EasyEDA/JLPCB boards and simple web designer. This time its a CW filter similar to the QCX and HiPerMite. I take no credit for the design, just copied it and added a

Greetings, ? ? ?I finally got my uBitx assembled and in the case of it's final destination.. I checked my wiring on everything, and nervously applied power..? ?Display came up and I was happy..

These HEXFETS are rated for 200V and 50A. They will (sorta) work as you have shown. But the gate input capacitance is 4000+ pF. That increases your standing wave in the drive circuit and lowers your

I have learnt to live with just about any iron. What matters really is a nice clean tip. These days they are tips that don't pit. I like those. Keep a good sponge, wipe them often. - f

The images of what I needed minimum. It looks like the station is not available but there are ones with more features around 70$. Chris

I find that holding my own hands sill enough to put a part the size of a couple grains of rice on a pcb without lifting a pad or tossing it on the floor is difficult for me even. Im 33! It looks to me

All I know is I wasn’t getting the correct voltages on Q90. It was 0 volts dc on all three pins. I was also losing the transmit dc in the vicinity of R84. So I replaced them both. Yeah, I know, kind

Well, pushing the limits on the irf510 mosfets, they caved on me. So, digging through my junk I found four irfp260's and soldered them in as an effort to get back on the air. So far, it seems to work,

Likewise somewhere I have my original Weller Soldering Gun from around 1958! Yes, it still works but I don't really have a use for it. I do have a huge Weller soldering iron for replacing Can

Some of these clones seem to blow for no particular reason. I think we primarily must limit the supply voltage, not so much the current under load. Though they are really good at dealing with

The DPAK package is perfect. http://uk.farnell.com/stmicroelectronics/l78m05abdt-tr/ic-v-reg-5-0v-smd-dpak-3-7805/dp/1366575

Quiescent current into the TDA2822 is around 6ma, peaks can be 1 Amp. Though?100ma might be sufficient for moderate speaker volumes. You would need two resistors for a voltage divider, and maybe

One could use a voltage drop resistor. The higher the current draw, lower would be the voltage to the TDA2822 [email protected]> wrote:

Regarding Joe's suggestion of using the Raduino's LM7805 to power the TDA2822: One objection I would have is the extra wire, needs to be dealt with every time? I unplug the Raduino.? Though not a

Jerry, I'm not sure everyone understands what foldback current limiting is. Your message 40729 explains it well. In action it is like a fuse. The power supply opens the power lead until the operator

IRF510 and IRF512 both have a Vds max of 100v. According to these guys, at least, not many IRF512 datasheets out there: ? ??http://www.njsemi.com/datasheets/IRF510%20-%20IRF513.pdf The IRF510 has a

It might be worth looking for some auctions as well. I've never understood how I did anything with solder before my metcal sp-200 iron I've had for 20 yrs now. It's way more iron than I need and

True.? The standard current limiting supply I described is not something to lean on to avoid driving the final too hard, that's not what I was suggesting. If there's a current limit on the finals,