WorldwideDX Amateur Radio Forums

a quarter century with Texas Star, and I have been put to pasture.
I did tech support for about 10 years. I am sure that some of you must know me.
It is my intention now to help techs and hobiests to repair a stock TS amplifier. I am not an engineer and there are things which I will not debate. However, I can usually fix one and not to have it blow itself up again.

I have made the simplest of web pages which I invite you to. Go to the troubleshooting page and pick up some pointers.
You can e-mail me with questions. I really like a digital picture with your question as a picture can be worth a thousand words. I may be able to recognize modifications or vintage of manufacture, or maybe even see a short or open from the pic.
I will try to come in here occasionally and look at the threads.

Remember, when you replace transistors on a Texas Star amp you need to check the bias circuit or you may just blow the replacement finals.
1 extra minute is all I suggest. Read the bias resistance, then manually key up and read the bias voltages.
GO to YouTube and look for Texas star Amp Repair
you will find manual key-up procedure and bias check procedure.

My name is Mike and I hope that I can help some of you.

TexasStarRepair@cox.net
Home Page

Thanks Mike, we do from time to time have some questions about amps and repair.

WE ALSO HAVE SOME HEALTHY DEBATES THAT YOU MAY WANT TO READ OR PERHAPS EVEN GET INVOLVED IN!!!

Welcome to the forum

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BASE: Kenwood TS-2000 w/Alpha Delta DX-CC, Diamond X50A, Sirio SY27-4, and IMAX 2000.
MOBILE: Galaxy DX99V w/RF Limited CR-577 mic, Sirio Z-180. Yaesu FT-8800R & Diamond NR-770.
"...2 WR-011..."

welcome to the forum , glad to see you found the place and i really look forward to your comments .

I Asked Mike If we could put a link up to his site, and if he would be willing to come over and have a look at the forum.
He has graciously said yes, and I want to Thank Him for coming over and offering his help to the Members.
This post is going to be sticky'ed to the top for easy access.

If you guys will visit Mike`s Home Page( link at the bottom of his first post), and Have a Look At his Trouble Shooting Section, you will find an awesome Guide on how to troubleshoot T/S amps, with step by Step Details , what to look for and do, as well as how to test transistors in the Amps and lots More great Info.

Again, Thanks Mike, and Welcome to the Forum!

73
Jeff

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Radio-active

NASA/SOHO


there is no dark side in the moon, really. As a matter of fact it's all dark

Welcome Mike

Yo, sup?

I checked out your youtube posts on the amp diagnosis, Cool, I am going to check my 250 HDV tonight. I never did get it fixed. I searched more on the TS amps on youtube and seen how they are supposed to work correctly. I see that on ssb the relay clicks on and stays on while talking, then it clicks off a split second after talking stops. Mine always clicked on and off fast with my peaks and lows of my voice. People said they would here my clicking while I talked but other than that it sounded great.

Now the amp chatters fast all the time. It never worked like it should.

The one youtube vidio says there is a resistor or capacitor that holds the relay in so it dont chatter while ssbing.

AP

thanks all, glad to help where I can

Airplane
email me direct with a clear digital picture of the amp board.

all of our amps had a 1000 uF electrolytic cap behind relay.
There should be a delay on and off switch.

Describe your problem in the e-mail and we will go from there.
Mike