I believe the Argo 515 actually had the Omni A receiver in it and came
out after the Omni A.
Carl Moreschi N4PY
121 Little Bell Dr.
Hays, NC 28635
www.n4py.com
On 7/7/2012 11:10 AM, Rick - DJ0IP / NJ0IP wrote:
> ABSOLUTELY NOT!
>
> The receivers in the 505 and 509 were basically identical and very similar
> to the Triton, but the Triton had switchable crystals for the 10m band,
> giving coverage in separate 500 Hz segments. It also had an 8-Pole crystal
> lattice filter, whereas the two Argonauts had only 4-pole filters. The two
> first Argonauts changed the rate of tune for the VFO on 10m, so each mark on
> the dial represented 4 kHz instead of 1 kHz. They were not great 10m rigs.
> I found them a bit difficult to tune on 10m.
>
> When the Triton IV came out, it had a hotter receiver than the original
> Triton. At least that is what I was told by the engineer that designed it.
> It also had an 8-pole xtal lattice filter. I don't remember what they
> changed but it was supposed to be better than the original Triton.
> When the Argonaut 515 came out, it got the Triton IV receiver, except it
> also had only a 4-pole xtal filter in it. At least it had the switchable
> 10m band segments.
>
> The biggest difference between the Argonauts were, the 509 had a broadband
> TX driver, whereas the 505 had a tunable driver. The tune was controlled by
> the little elevator that went up and down to tune the RX stages. The SSB
> generator board was updated on the 509 but I can't recall what the changes
> were.
> The 515 got the Triton IV RX and the 4 switchable band segments on 10m. It
> also got slightly larger knobs for most controls. Finally, it got a new
> paint job, making it look more like a real radio than a plastic toy! ;=)
>
> 73
> Rick, DJ0IP
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Curt
> Sent: Saturday, July 07, 2012 4:39 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Ten-Tec firsts???
>
> Owning a Triton IV, wasn't the receiver essentially same from Argonaut 509
> through all the Tritons?
>
> Curt KB5JO
>
>> That was the Triton I. The Triton IV came out in 1976.
>
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