Its how we've been doing it at W5WMU for quite some time now. All tuned for
the correct portion of the band, all located in a separate room.
Charlie
KI5XP
>
> Message: 2
> Date: Sun, 22 Jan 2006 09:17:42 -0800
> From: Bill Turner <dezrat1242@ispwest.com>
> Subject: [RTTY] Mono band amps
> To: cq-contest@contesting.com, "RTTY List" <rtty@contesting.com>
> Message-ID: <7.0.0.16.2.20060122085752.02283ac0@ispwest.com>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Wondering... For those who like to change bands a lot.
>
> Rather than spend between five and ten thousand dollars for
> an auto-tune amp like the 87a or similar, why not build
> separate amps for each band and switch them? You wouldn't
> need auto-tune or even manual tune since they would already
> be tuned. Also, SO2R would be a natural since no additional
> amp would have to be purchased.
>
> The Russian GS-35b is so inexpensive these days it seems to
> make sense to me. One power supply could run them all (for
> single ops where only one TX is allowed at one time) and just
> switch to the one you need. Fan noise might be an issue if
> all five were left running, so a pair of 3-500s or some other
> instant-on tube could be used instead. That expensive
> bandswitch would be eliminated, although you would need to
> switch the input and output coax, easily done with inexpensive relays.
>
> This might be a good business opportunity for an enterprising
> ham to make and sell them.
>
> Anyway, just an idle thought. It would seem to be much
> cheaper but I don't recall this approach being discussed before.
>
> Bill, W6WRT
>
>
>
>
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|