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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,

Could work, first time this was suggested. An extra wire, the Raduino regulator would get hotter. ?

Title. Fake news. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton -

Where did this info come from? RF Parts shows these in stock. I just purchased both the RD16HHF1 and RD15HVF1 in quantity from RF parts and received them in 2 days. Mitsubishi still shows these on

Actually, the closest available MOSET to the IRF510 is the IRF512, which is the same device, only it is rated for a drain voltage of 100v. It goes by other numbers as well. There are many devices

When you current limit the PA you are doing the same thing that happens when you overdrive a linear amp and cause flat-topping, i.e. the PA is driven out of its linear range. That causes spurious

Jerry has the group discussed pulling 5v from somewhere else like use the 5v that powers the Raduino? Maybe temporarily until they can get a regulator and or new WX chip? Joe KD2NFC

Jerry, A lucid and easy to follow explanation! Thank you! tim ab0wr "Jerry Gaffke via Groups.Io" <jgaffke@...> wrote:

I used to watch my grandfather repair tube TV’s with this one.

I used the one foot long cable and it fit perfectly in the Hammond Case as you can see. I ordered it on Amazon just because they can deliver in one hour, or next day depending on how quickly you want