i ran across this part i had pulled from somthing acording to the data sheet for hitachi witch i beleve it is it is a power amplifier. this is a link to the data sheet for it it is part #pf0030
http://www.qsl.net/n9zia/cell2900/pf0030.pdf
i do not understand much of the diagram and i have no idea what apower amplifer does. if anyone could please tellme what this divice does and explain what these mean it would help. i don't know what apc voltage is, or all of this stuff.

Electrical Characteristics​

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(Ta = 25°C)​

Item Symbol Min Typ Max Unit Test Condition​

Drain cutoff current I​

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DS — — 500 mA VDD = 17 V, VAPC = 0 V
Total efficiency hT 35 40 — % Pin = 2 mW,
2nd harmonic distortion 2nd H.D. — –50 –30 dB VDD = 12.5 V,
3rd harmonic distortion 3rd H.D. — –50 –30 dB Pout = 6 W (at APC controlled)
Input VSWR VSWR (in) — 1.5 3 — Zin = Zout = 50 W​

Output VSWR VSWR (out) — 1.5 — —
Stability — No parasitic oscillation — Pin = 2 mW, V​

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DD = 12.5 V,
Pout = 6 W (at APC controlled),
Zin = 50 W,
Output VSWR = 20:1 All phases,​

t = 20 sec

any ideas what i could do with such a divice?
thanks

 

Are you talking about this conversion? - http://www.qsl.net/n9zia/cell2900/index.html