Hi Vic,
The Toshiba 2SC2879 transistors are arguably the most rugged and reliable
devices for use at 13.8 VDC. In the HENRY SS 750, then have never failed
yet. From 10 to 500 watts will require a preamp and then the 2879 (X4, 2
boards) final.
Motorola has some great application notes than can be followed. There are
also some kit makers that you can just buy parts from and roll ur own.
No tuning needed 1.8-30 MHz. Just switch in the appropriate LPF for the band
you're on.
73, Dan Magro W7RF, (President WARC 1999, member SCDXC, SCCC)
Manufacturers Rep & Distributor for HENRY RF Power Amplifiers.
RF Applications Power Measuring equipment, See the VFD & WinWatt!
www.radiodan.com <http://www.radiodan.com> RFpower@radiodan.com
<mailto:RFpower@radiodan.com> A trip to our web site is worth the click!
> -----Original Message-----
> From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
> Behalf Of Vic Rosenthal
> Sent: Friday, November 26, 1999 9:49 AM
> To: Amps reflector
> Subject: [AMPS] Little amps
>
>
>
> This question is a little different from what we usually see
> here, but I need a
> creative solution.
>
> I'm building a little Elecraft K2 transceiver kit. It will put
> out about 10
> watts CW and SSB. I would like to build an amplifier to use
> after this that
> will produce a reasonable amount of power on 1.8 to 30 mhz (say,
> 500w) and will
> have a maximum of one tuned circuit (it's no fun tuning up when
> changing bands,
> but it's even *less* fun when you have to tune more than one
> circuit). I'd like
> it to be simple and cheap, too!
>
> How would you approach this?
>
> 73,
> Vic, K2VCO
> Fresno CA
>
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