| Author |
Message |
    
Citizenband
New member
Username: Citizenband
Post Number: 2
Registered: 2-2007
| | Posted on Sunday, April 01, 2007 - 8:22 am: | 
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I own two Texas Star 500's, one is a variable and one is a non-variable unit. The DX model doesn't swing near what the variable does. Both were tested with my Superstar 121 radio. A tech told me a long time ago that as long as I see a deadkey of 100 to 300 coming out of amp (depending on dead key into amp from radio) that is all is well. Both deadkey the same pretty much. Any help is greatly appreciated. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3574
Registered: 7-2004
| | Posted on Sunday, April 01, 2007 - 9:19 am: |
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dead key of 300.....YIKES. dead key of 100-125, PEP seeing 400-500 is a good number for the dx500, variable or not. like cars, 2 built the same might not perform the same.
what ARE the numbers yours are doing? |
Citizenband
New member
Username: Citizenband
Post Number: 3
Registered: 2-2007
| | Posted on Sunday, April 01, 2007 - 9:02 pm: |
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Thanks for you help. let me throw some readings at you from my dosy 1000 meter. DX-500 keys up 125 watts and swings 300 with my Superstar radio input(3 watt, swings 25 watts. 500V keys up 150 watts and swing 400 watts with same radio input. Is this usual or unusual? |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3583
Registered: 7-2004
| | Posted on Monday, April 02, 2007 - 10:59 pm: |
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i have heard people say their 'variable' TS amps swing more then their 'non-variable' ones. never noticed that big of a difference on the ones i've had. are you using the same jumpers? are there SWR differences between the 2 amps-on or off? did you try varying the mic gain-up & down-with each amp? nobobdy will ever notice the 25 watt/100 watt difference anyway. but.... |
Citizenband
New member
Username: Citizenband
Post Number: 4
Registered: 2-2007
| | Posted on Tuesday, April 03, 2007 - 7:06 am: |
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I tested them with same radio, antenna, jumpers, and power(car battery/altenator). On both amps, checking from amp output, the SWR's are both around 1.5 or less. I always leave my mic gain open all the way but it could of possibly got turned counterclockwise by accident when testing one of them, not sure. Thanks for the info. Another question I'd like to ask, will I see more swing on high power. Everyone I've always talked to that had a Texas Star told me to run them with the green button depressed? |
Panda_bear
Junior Member
Username: Panda_bear
Post Number: 16
Registered: 4-2005
| | Posted on Wednesday, April 04, 2007 - 2:43 am: |
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i beleive the dx version is a str8 4 pill(no 2290 to drive those 2879s)the other bing the variable
would be a 1 driving 4 box(it has its on driver pill a 2290) |
Citizenband
New member
Username: Citizenband
Post Number: 5
Registered: 2-2007
| | Posted on Thursday, April 05, 2007 - 9:16 pm: |
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No both models are straight 4 pill configuration. Can anyone tell me what is best green button(medium) or just the red power button alone(high) depressed is best for maximum performance? |
Hotwire
Senior Member
Username: Hotwire
Post Number: 2197
Registered: 1-2005
| | Posted on Sunday, April 08, 2007 - 2:22 pm: |
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Hello David, Such a good amp you NEEDED 2 of them! I have 3 myself 
I have heard many people say that the variable will go out if you use it to much and to just use the amp with red button only. Well I have not had any trouble as of yet using the green variable activate button. In fact I use it all the time variable full clockwise. I don't like to always use my amp at full blast unless that guy in NewYork is stepping on me, ohh whats his name? Oh Yeah Patzerozero!
So maximum performance is red button only. Green button is about half performance with variable full clockwise. You know also using the red button only you can reduce the mic gain so not to push the amp to hard.
Oh one more thing. Be sure that you have a big enough alternator and battery. I recommend the Optima Red Tops by the way, try one and you will know why I prefer them over any other.
Also before I forget! You want 100 percent performance! The most important thing is thickness of power wires to the amp! If it is a short run like less than 8 feet then 8 gauge is sufficient. Any longer then you will need at least 6 gauge power wires
Kenny
cef491(27.115lsb)
2sf491(27.555usb)
Indiana
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Dale
Advanced Member
Username: Dale
Post Number: 739
Registered: 12-2002
| | Posted on Monday, April 09, 2007 - 11:26 am: |
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on the variable unit citizen band
red button is power
green button pushed in actavacties the variable knob.pushed out deactivates the variable making the amp run wide open all the time i always push mine in
dale/a.k.a.hotrod
cef426
cvc#64
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Citizenband
New member
Username: Citizenband
Post Number: 6
Registered: 2-2007
| | Posted on Monday, April 09, 2007 - 11:01 pm: |
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Thanks so much for your help guys! I thik I'm going to run the green button and green button with variable turned clockwise also. The reason I asked is was noticing that with green button pushed in it deadkeys 125 watts and with just the red button it deadkeys 200 but swing is only increased 50 more watts(overall swing) on high(red). So it seemed like it made no sence to run it on high after seeing the results. I guess people run it on high for the maul effect or they turn their deadkey down on their radio to adjust deadkey on high down. |
