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Unsolder one end and check for 100 ohms. If it appears good I would still change your 100 ohm carbon resistor to a 100 ohm metal oxide which appears to be an update by looking at the pictures.

The only changes are to the driver and final circuits in these radios. Since the factory has already made available schematics for the mosfet models just do an "AB" comparison. Look at the driver and final circuit of the bipolar model shown here...

linearone is 100% correct. I think the older manuals needed an updated to reflect that. I'll get that done on the next printing.

I don't agree with this after having ripped open both mosfets and doing AB comparisons. The buss for the drain looks to be heavier on the 2030s. Possibly designed to carry more current. I think some more data is required before we say they are "exactly" the same. -Ray

The DX1600 Sweet 16 will realistically show pep of 1400 watts on AM and can take a beating. The DX1600V will pep slightly higher but does not like to be over-driven. The DX1600V comes with a fan kit but the DX1600 does not and you will need one if you are going to "drive the dog snott out of it".

All mode HF equipment is so well built and designed with so many great SSB features plus the prices have really dropped over the last few years. When I was a heavy into chatting on the radio I had my Kenwood TS-930 for SSB and my Tram D201A for AM. Just hooked them to a coaxial switch which...

Yes, it's a new Connex model 4300-400WSM (Walter S. Mooneyhan) owner of Connex Radios. He's a radio man to the core and one of the nicest people in the business.

San Diego started a BPL plan in 2005 which fizzled out in less than a year.

I'm fully ready to be harassed for this one. There was a book printed by J.L Richardson called CB Tricks II. He was a broadcast engineer for KXIO in Clarksville AR. However 75% percent of it was all about amplifier design. The Table Of Contents looked like this: Solid State Linear Amplifier...

My guess is you won't find "high level" audio in modern day solid state hf rigs simply because "low level" audio is a better choice to help prevent distortion. However that doesn't mean today's hf rigs won't have good AM audio.

That works too. :cool:

I'd be happy to help you from here as well. Just need you to give a few more details about the problem. Such as what channel and frequency are you on when the counter starts acting up? Does the problem happen in AM, LSB & USB? When the counter problem is happening does it also seem to affect...

You didn't say which mosfet "A" or "N" you saw higher power on. Also the datasheet shows the IRF520N has lower input capacitance than the IRF520A however datasheets are not all created equal.

The DX2547 won't work very well if at all on 10-meters because the main pcb isn't designed for that frequency range. I'm not saying it can't be done, just that the radio will not have very good specs at the frequency range.

Let me know how you have progressed with this problem. If you still feel the need to replace the regulator transistor I would be happy to send it to you. There is also another update on the voltage regulator pcb that we did to later model DX2517s that will help your DX2527 as well...

The plastic mounting screws on the mosfets will be a problem.

Thanks for that info Crusher. :thumbup1:

What's a Ranger 94VHP?

There was an update to the voltage regulator pc board for this. The below caps are located on the power supply regulator pc board, EPTOSSB62A Replace C602 with a .01uF cap Remove C608 and discard.

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