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Thread: Transistor amps used on base and the power suppies to run them

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    Transistor amps used on base and the power suppies to run them

    I have run several transistor amplifiers on my base setups. Everything from 1 transistor up to 16 transistor amplifiers. I relly like Texas star amplifiers and currently have a Mod V [2 transistor], a TS DX500 [4 transistor] and a TS DX1600 [8 transistor] but I also run several other brands ,,,a couple of 1driving 4 amps for my low drive radios[ RCI 2950DX etc] and for serious talking a couple of Messenger 2 K [ 2 driving 16] these I have had Peak a boo {maker of JOKER amps} go thru and redo the bias and generally work them over.

    To power the transistor amps , I find you generally need 10 amps per 100 watts output. for example a texa star DX500 would need about 50 amps to run it...IF you use a low dead key you can sometimes get by with a smaller power supply.. I have run a TS DX1600 on a 55 amp power supply but never dead keyed more than 300 watts, letting the TS 1600 swing to a 1000 watts, I do not reccomend this but have done it my self..

    For the past 5 years , I have been using switching power supplies, much lighter, than Astron, pyrimid, etc supplies and much cheaper. I usualy buy them from ebay http://motors.shop.ebay.com/RV-Trail...nverter&_dct=1
    My favorite size and brand is http://www.ebay.com/itm/Progressive-...sories&vxp=mtr
    These 80 amp supplies run my Texas star DX1600 fine and I stack 4 in parallel to run my 16 transistor Messenger 2K , that gives me 320 amps to run it . You can usually find 55 amp power suppies for about $100 and they will run a 4 transistor amp or my RCI 2970N2 radios fine..

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    Birdy (05-12-2012), doughboy (04-08-2012), tripple nickel (03-30-2015)

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    thats good to know i didnt know if those switching supplies could handle the initial surge when you key up i must say they are probably a 1/4 the weight or less of the transformer based supplies

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    about as good as tits on boar hog!!!! Tubes is the only way...

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    Mr.5150cbrn (07-12-2012)

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    I've been running a Pride 400 4xMRF454 with an old car battery and a small 1 amp trickle charger. It works well enogh but my battery is getting to the point that it drops from 13.8 volts to 12-12.5 when I key up. I need a battery sale so I can get a new one for my amp. I'm still getting 325-350 out of that little box.

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    I checked out that E-bay link and that RV charger/supply looks good and would be a good addition to my set-up.

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    after you buy a new battery get a 3 or 4 amp trickle chasrger to help prolong battery life and faster recovery ratesShift+R improves the quality of this image. Shift+A improves the quality of all images on this page.

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    Mega-watt makes switching power supplies also, heard were good. I usually prefer running the astron 70's regulated ones parallel in line together
    RCI-2950DX, 1978 Cobra 148 GTL Taiwan, SHURE526T MIC, Tug-8 With Astatic 10 DA Head, Astatic 575M6, ASTRON 70/20 AMP POWER SUPPLIES, IMAX 2000 W GROUND PLANE KIT. TIMES MICROWAVE LMR-400 COAX, RF CHOKES. DIAMOND SWR/POWER INLINE METER. 250 of Sea Level Under Me. Recent World Radio Member.

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    123 IL builds some large switching power supplies. He just finished a 600 amp version.
    609-350-4798

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    Super Slab (05-10-2013)

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    Yep 123 Builds a heck of a power supply. I have one myself and love it he is also building me another one as we speak. He will stand behind anything he builds great guy to deal with

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    Quote Originally Posted by scooter71nc View Post
    Yep 123 Builds a heck of a power supply. I have one myself and love it he is also building me another one as we speak. He will stand behind anything he builds great guy to deal with
    I have to check out the 123 power supplies and amps hearing alot of good things
    RCI-2950DX, 1978 Cobra 148 GTL Taiwan, SHURE526T MIC, Tug-8 With Astatic 10 DA Head, Astatic 575M6, ASTRON 70/20 AMP POWER SUPPLIES, IMAX 2000 W GROUND PLANE KIT. TIMES MICROWAVE LMR-400 COAX, RF CHOKES. DIAMOND SWR/POWER INLINE METER. 250 of Sea Level Under Me. Recent World Radio Member.

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