RCI 2995DXCF

[9C1Driver]

What's the story on this radio? What finals and driver does it have, I can't seem to find much detailed information about these. A local guy has one and it appears he smoked the power supply. He's all wound up about getting an upgraded replacement supply for it. He bought numerous items from this Jokerman electronics. He was running this radio with a Texas Star 667 (I know damn) with the radio turned all the way down. That's a whole different discussion there let me tell you, he is convinced this is just fine cause jokerman said so. Anyway just curious about this 2995 DXCF model.

 

[999]

Good grief...He's gonna blow that 667 to hell if he keeps doing that unless he turns of the amp inside the radio. Then he can run those two together with no issues.
I would think that it has the same finals and amp section and the old 2995DX does. I think all they really changed was the face to LED from LCD.

 

[9C1Driver]

Was the old 2995 the old dual 2290 final or 8 mosfets?

 

[999]

Was the old 2995 the old dual 2290 final or 8 mofets?

I was trying to find a schematic, but all I could find was the 2x2290 version.I know they did the mosfet version on the 2970DX and I thought they did the same thing with the 2995DX, but I can't find evidence of that.
That being said, at this point I'm not sure what they have done for the amp section on the new 2995DXCF radio. I thought I was...lol.

 

[Mudfoot]

Jokerman has expensive Kool-Aid. Look at his prices on his website. Dude charges outrageous prices, but people keep coming to drink

 

[ExitThirteen]

The early 2995's ran 2 x 2290's, and the newer ones ran 8 x IRF520's.


~Cheers~

 

[CbRadiosPRONTO]

Unless it's 5-10 years old (not sure when they made the change), it has 4 mosfet finals in it.

 

[9C1Driver]

Thanks for the information all.

 

[Pete Fender]

4 MOSFET's in my new 2995dxcf.

 

[Pete Fender]

The MOSFETs don't last long.
I replaced the entire board as an assembly, but it woks for a while, then the whole radio shuts off, until I disconnect the wires from power supply to amp board.
The power supply is set to 13.8 volts and SWR is 1.1 : 1.

 

[Ranch55]

The MOSFETs don't last long.
I replaced the entire board as an assembly, but it woks for a while, then the whole radio shuts off, until I disconnect the wires from power supply to amp board.
The power supply is set to 13.8 volts and SWR is 1.1 : 1.

The MOSFETS will last longer.
The amplifier board needs to have the MOSFETS Gate "bias current" set properly.
They usually will not last long without the correct bias current. Too much Gate voltage caused by too high bias current will over volt these transistors.
And the radio driver and final also need to have the correct Gate "bias current", NOT Gate voltage.
Not good.

 

[TIN_CAN]

Was the old 2995 the old dual 2290 final or 8 mosfets?

The older 2995DX ran 2290's as well as the 2990DX