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Texas Star Dx400
- Thread starter kerryebro
- Start date
The Texas Star 400 is SSB ready so all you need is at least a good 52 amp power supply. A 70 amp would probably be better. As far as input drive on SSB something like 8-14 watts would be plenty. You didn't mention anything about problems with your amp in your post. Is it working or is something acting up?
BJ radionut
Supporting Member and 6m addict
Shadetree Mechanic
Delaware Base Station 808
BJ radionut
Supporting Member and 6m addict
Specs per Texas Star Homepage
Texas Star 400R Same as the DX-400
Peak Output: 400 Watts
Typical Drive:10 watts
Amps at the normal output: 35
Class AB-1,
4 Power levels
Transistors: Qty 4 - 2SC2290 Ratings each: 80W = 320 watts MAX
Texas Star 400R Same as the DX-400
Peak Output: 400 Watts
Typical Drive:10 watts
Amps at the normal output: 35
Class AB-1,
4 Power levels
Transistors: Qty 4 - 2SC2290 Ratings each: 80W = 320 watts MAX
The locals use Kilgore's CB shop on business 287 north of I20. He's open Monday thru Saturday from when he gets there until it gets hot outside.
600w pep
LOL yea that's a problem right there a TS400 can't do 600 watts. Sounds like he needs a new watt meter and to stop overdriving the piss out of that thing.
It can make a meter say its putting out 600 watts but...
If you need to see 600 watts you need a bigger amp. The 400 sounds tired.
Anyone remember when w8ji proved how many watts a 2879 would do? It almost caused civil unrest.
BJ radionut
Supporting Member and 6m addict
But,but,but,but
The spec sheet says.........
Quote
Don't think a data sheet, especially one lacking so much data as the one linked and only listing SSB linear tests, is an absolute limit for all modes.
End quote.
Ya.
Problem here is the rest of a DX 400 will not take the abuse the Toshiba transistors will.
73
Jeff
The spec sheet says.........
Quote
Don't think a data sheet, especially one lacking so much data as the one linked and only listing SSB linear tests, is an absolute limit for all modes.
End quote.
Ya.
Problem here is the rest of a DX 400 will not take the abuse the Toshiba transistors will.
73
Jeff
Tell the datasheet guys that a 2879 amp can't produce harmonics. The datasheet says 2-30 mhz.
I'm all fairness to the OP it depends on how he is measuring output power.
We all know that you can set half a dozen, run of the mill watt meters behind a pa and see different readings, and depending if was running into a dummy load, antenna, what swr, so we might be assuming.
The 2879 was 1 hell of a robust transistor by the time the end came around, they had it together.
It would continue to work well above the 12.8 vdc that was used in the data sheet test jig.
The problem is that the Toshiba's will far exceed what the rest of the ts amp will.
73
Jeff
We all know that you can set half a dozen, run of the mill watt meters behind a pa and see different readings, and depending if was running into a dummy load, antenna, what swr, so we might be assuming.
The 2879 was 1 hell of a robust transistor by the time the end came around, they had it together.
It would continue to work well above the 12.8 vdc that was used in the data sheet test jig.
The problem is that the Toshiba's will far exceed what the rest of the ts amp will.
73
Jeff