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Cactus_29
New member
Username: Cactus_29

Post Number: 3
Registered: 12-2009
Posted on Thursday, January 14, 2010 - 2:21 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

What Mosfet finals are in the new RCI 2950dx? And how are they holding up compared to the old
2SC-2312's. So the question is reliability with the new Mosfet Finals in the 2950dx. Any other feedback, good or bad about this radio would be great. I'm thinking of getting one soon from Copper and need more information from other owners who have been using this radio.

Thanks..
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Ak3383
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Username: Ak3383

Post Number: 87
Registered: 11-2005
Posted on Saturday, January 16, 2010 - 3:32 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi, I got one from copper about a month ago and it's performed great, no problems and a real joy to use.
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Cactus_29
New member
Username: Cactus_29

Post Number: 4
Registered: 12-2009
Posted on Monday, January 18, 2010 - 2:08 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thanks for the positive input; Iím glad youíre satisfied with your new 2950dx and how it performs. Iím mainly concerned about long term with the new Mosfit finals in this unit and how the radio is holding up in general. I do understand if you turn up any radio to the max the life expediency could be short. But what Iím hoping is if the 2950dx can handle a slight adjustment increase in modulation and power without compromising its longevity. Ak3383 is your radio for the most part stock out of the box with just the channel mod?
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Ak3383
Member
Username: Ak3383

Post Number: 89
Registered: 11-2005
Posted on Wednesday, February 03, 2010 - 10:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Yes it's stock, just the channels and pots adjusted. It does the rated watts and talking AM heavily it doesn't get hot. The heat sinks just get warm.
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Tech808
Moderator
Username: Tech808

Post Number: 17405
Registered: 8-2002


Posted on Thursday, February 04, 2010 - 8:15 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Personally I would NOT turn anything up.

Remember you would have to increase the Output power by 4 times to even make a single S-Unit difference to the person you are talking to.

Mosfet Final radio's tend to give you longer more reliiable life in any radio and allows it to have maximum outpit power without peaking them to the max and over driving the finals.

A good antenna and proper grounding can help you far more than over peaking a radio and thereby shorting the radio's life.

Also please remember that this is the WORST radio condition's / solar cycle I can remember in the last 10-15 years for talking DX.

Hope this help's,
Lon~Tech808
N9CEF
CEF#808

Radio Enthusiast!


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Cactus_29
New member
Username: Cactus_29

Post Number: 6
Registered: 12-2009
Posted on Sunday, February 07, 2010 - 7:45 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you tech 808 for the helpful advice about not making any adjustment increases, because it would be really unnecessary.

Your explanation was quite reasonable because I wasnít aware that the new mosfetís now being used in the new Ranger units gave longer and more reliable service over the former NPN Transistors used.

I have not owned a radio with Mosfet being used as the Final, so in my earlier post I asked that question and Iím glad you cleared that up for me. As far as turning up the power and modulation I meant in general terms vs. the older 2950dx with the 2sc2312ís. A coworker I work with has one of the older units peaked up with some kind of splattering swing kit installed from a truck stop and I am amazed still after 5yrs itís working. So if the old unit could handle that kind of abuse, I feel more confident now reading your post that the new dx model should perform great right out of the box.

When I purchase one I primarily tend to use it on 10 meters hopefully when propagation improves and the band opens up.

Itís unfortunate that know one else here on the form that owns a 2950dx mosfet version couldnít ring in and give me there experience using this radio. As far as the solar cycle, the late 70ís seemed to be the best as I remember for DX.

Thanks Lon for your response and have a good day.
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Cactus_29
New member
Username: Cactus_29

Post Number: 8
Registered: 12-2009
Posted on Sunday, March 14, 2010 - 5:24 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I thought all the new? 2950dx radios had Mosfet Finals. I just got one from Copper and it has 2 1969's in it. Hum... Maybe someone can explain this.
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Teham
Intermediate Member
Username: Teham

Post Number: 114
Registered: 1-2004
Posted on Monday, April 04, 2011 - 12:11 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

might be one of the ones left over. unless they use Sam Lewis's finals ur wasting ur money. The others don't hold up. tony/n5jva/cef 259

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