9a4wy
i ovako jedni drugima smetamo na bandu...ali ako počnemo to koristiti onda smo u svi u faku..
Netocno,
nove generacije SSPA imaju daleko superiorniju linearnost od cijevnih pojacivaca
Primjer lose linearnosti za danasnje pojmove je i 8877 (3cx1500a7)

Prilozena je stara uporedna tablica predajnih cijevi sa prvom generacijom TMOS
RF LINEAR AMPLIFIER SERVICE FOR SSB AND CW
GRID DRIVEN, CLASS AB1 (Except * Cathode Driven,^ AB2)
TUBE PLATE SCREEN GRID ZERO SIG MAX SIG MAX SIG PLATE INPUT USEFUL AVG 3-ORD
TYPE VOLTS VOLTS VOLTS Ib0 Ib Ic2 LOAD PWR PWR Po DISS IMD
V V V ma ma ma ohms W W W dB
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6146 600 200 -46 25 103 9 3570 61 41 16 -25
750 200 -51 25 118 7 2825 88 55 28 -22
800 290 -69 30 125 10 3620 100 59 35 -24
800 290 -77 25 180 13 2300 145 91 45 -19
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807 600 300 -34 18 70 8 4300 42 28 12 -23
750 300 -35 15 70 8 5200 53 36 14 -23
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6DQ5 500 150 -46 48 170 17 1800 85 54 27 -28
600 150 -46 48 182 13 1625 91 56 29 -26
700 150 -49 35 182 11 2210 127 78 41 -23
800 180 -67 30 250 13 1710 200 121 70 -19
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6550 680 340 -39 48 140 20 3010 95 67 26 -32
800 290 -33 45 127 15 3920 102 70 29 -30
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6HF5 500 140 -46 40 133 5 1900 67 35 29 -27
800 125 -45 30 197 7 2170 158 100 48 -21
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6JE6 500 125 -44 40 110 4 2300 55 30 24 -26
750 175 -63 27 218 15 1850 163 102 51 -20
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6MJ6/ 750 175 -60 25 215 9 1850 161 102 49 -18
6LQ6 800 200 -69 25 242 13 1850 197 124 60 -18
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4CX300 2K 350 -55 100 250 5 500 300 -27
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8930 2K 350 -63 90 290 30 4000 580 350 -27
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*^8877 2.7K triode -8.2 92 740 -- 1820 2000 1085 -40
*^ 3.5K --- -8.2 182 1000 -- 2000 3500 2075 -38
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*3CX500A7 4K triode -9 400 1250 -- 1800 5000 3000 -37
* 5K -- -11 400 1450 -- 1800 7250 4000 -35
* 6K -- -12 400 1550 -- 1800 9300 5000 -38
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MRF150 50 TMOS 250 3750 -- 333 150PEP -32
ad6iw