Re: LF: Re: And again!

[Chris Wilson <dead.fets@gmail.com>]

Hello N1BUG,

Tuesday, September 18, 2018, 11:58:28 AM, you wrote:

> On 09/18/2018 06:38 AM, Chris Wilson wrote:

>> Hellish  noise  last night here too, but you made it through. Have you
>> increased power?

> Not since July when I got the new PA running. If it's still noisy
> there and you are hearing me, perhaps during the quiet months I will
> be strong enough for that 5 minute JT9 QSO. ;-)

> Paul


I certainly look forward to trying!

I  asked this question on a couple of forums is it something you would
have looked into paul?

With devices like this, (linked to below), limited to a max of 36V how
do you apply the technology to say a Class D FET ended RF amp running
on 60v or even rectified 240V mains? And secondly, with the amp
powered, when a signal is applied, let's say the digital amateur mode,
WSPR commences, there is a high current for a short time. How do you
allow for this yet provide effective over current protection for
rapidly failing devices like FET's? Thanks

http://www.ti.com/product/INA300

-- 
Best regards,
 Chris                            mailto:dead.fets@gmail.com