Dx500 vs DX1600

[magnuman]

Good to know. Not that I have my heart set on 500w, but definitely good to know.

How much SSB PEP input did you feel comfortable with?

Any twin final export radio drives a TS 500 rather nicely. 40w is more than enough!
Need a fan cos it does get hot at those levels, and a stout PSU. Will use all of 50A.

 

[Ranch55]

I have been using a couple of Texas Star DX500 amplifiers after the Stryker SR955 radios in my trucks for about 2~3 years. They work very well together. The TS500's take the output from the 955's just fine with no issues......
I set the am output from the 955's at 4 watts dead key and then just let the radio and amps do their thing on am and SSB .......
So go ahead, it will be okay.
I also have another SR955 as one of my radios in the "shack". It drives a Texas Star DX1600 V "Sweet Sixteen" ......
I also set the am output on the radio at 4~5 watts dead key output. It drives the 1600 very well, up to 1200~1300 watts output.
So do not be afraid of it. It will do just fine......

 

[2NC995]

Hey Ranch55, do you have Chinese transistors or Toshibas in the DX500s?

 

[Ranch55]

Hey Ranch55, do you have Chinese transistors or Toshibas in the DX500s?

I have Toshiba transistors in all my transistorized amplifiers.

 

[2NC995]

Yeah, I pretty sure the new ones come from the box with DEIs...will find out Monday. I don’t plan to run it hard, so we’ll see how it goes with them. And if or when they fail, I have a few Toshibas stashed away

 

[543_Dallas]

I'm curious if the manufacturer of Texas Star has switched to HG or still has a shipping container full of dei transistors.

 

[Shadetree Mechanic]

I think my 350 has hg in it.

 

[2NC995]

Well, I find out what’s in there when the post man comes on Monday. I’m fully expecting DEI, but hoping for HG.

 

[2NC995]

Lucky me!

 

[Shadetree Mechanic]

Lucky me!

View attachment 31253

Where did you order it from?

 

[2NC995]

Copper.

 

[Unit 75]

I don't know if your planning on running that 1600 in the mobile or on the base but it is going to draw around 150 Amps on SSB. If your going to use it on the base, I would get a 200 Amp power supply to give you a little head room.

 

[2NC995]

I went with the 500, and it’s going to be mobile.

 

[2NC995]

DEIs. Mildly disappointing, but I’ll be ok.

 

[2NC995]

Ok, so not very legit testing because I used an antenna (and cheap meter).

1000hz tone into mic...With radio showing 25 PEP amp on shows 500W nearly on the nose. More from the radio didn’t showed only slight gains, so I backed it off to produce about 450.

Haven’t messed with AM.