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That makes sense, I should have gotten out my calipers [email protected]> wrote:

I've never tried going much beyond 12v on the uBitx. If I were to do it, I'd start with the qrp-labs 10W PA that I have built up. Power out should be proportional to the square of the supply voltage,

I have 19V and on 40 meters, about 20 watts. Much less on the higher bands. The IRF510 is a poor choice for higher power and higher frequencies, it is slew rate limited.

Not to mention RF parts availability.? IRF510s can be found almost anywhere.? Anyone that has tried to source RF transistors I'm sure can appreciate this -especially those living in remote areas. 73

"Name brand commercial radio" does not describe the uBITX which is designed to be less expensive and more desirable by people in India and other countries, even here. This includes me and is the

That is a very neat and interesting idea. However, another commenter here stated that doing this could affect the higher (15/10M) output power for the V6 which is already challenged by lower power

Here’s the tell. Name one name brand commercial radio that uses IRF510’s as RF transistors. Sent: Friday, January 1, 2021 9:17 AM To: [email protected] Subject: Re: [BITX20] Ideas for

Loris, I grew up in Brazil and finished secondary school there. I used the Metric System as did all my classmates. People here either shy away from the metric system or they act as if it does not

Jerry -? This thread has been really helpful.? I haven't failed any 510's in the field yet, but.... When you mention a shorted antenna jack and heat-related failure, what kind of key-down times are

Curious what power out do you get with 18-22VDC? -- Frank, KG9H

It's most likely a win10 update bomb. Try unplugging the radio from the computer then plugging it back in. After a year of running The N4PY Pegasus Plus software to control my Ten Tec Jupiter I

Mad, Thousands of stock uBit's are operating with no trouble at all. If the IRF510's die at all, It is almost certainly because of overheating. Perhaps when running some digital mode, inside an

Hey Bob ??? Why " Time to break out that millimeter scale "? I'm not understanding well ??? *The Decimal scales* (of which the millimeter scale is a representative)?are the *only true scientific and

Go on F5NPV – Amateur Radio – Ham Radio (wordpress.com) ( https://f5npv.wordpress.com/ ) it's a French Ham, many idea on his web site. Easy, it's in English. cdt

Sorry, here an idea for the IRF510

Hello, here

If you measure the screws' length with a millimeter scale, you will find there are two sizes, a longer one and a slightly shorter one. Use the shorter one and it will work OK. Just because a screw

I was attaching the screen and the screws weren't sitting flush and the bottom two nuts snapped off as I tightened. Is there anyway to repair? The screen isn't loose but I'd rather those not be

Don’t understand the point. Why would you want to operate excellent RF transistors designed specifically for the 12-14V mobile world at a higher voltage? They make all of their power in that range.

I like to use Anderson Power Poles myself - all my equipment has been converted to that. Alex Netherton http://blueridgediscovery.org