Re: U3S RF Power Transistor
No harmonic filters? ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Moderator ¨C North American QRO Group at Groups.IO. ? email:? bill@... ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Andy Brilleaux via Groups.Io Sent: Thursday, April 11, 2019 5:40 AM To: [email protected] Subject: Re: [QRPLabs] U3S RF Power Transistor ? I made an RD06HHF external amp, for my QRP Labs rigs and for general use.
I have one of my QRP Labs rigs set for about 200mw output, and pass it via a 3db attenuator.
I prefer to use an attenuator because it keeps the impedance constant at 50R regardless of frequency (RD06HHF is about 200R).
- Andy -
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