This is another circuit RF amplifier that I took from the Encyclopedia of electronic circuit Volume I. The circuit is quite hard to build since the components is complex and need more attention for the Inductors,
160 W (PEP) Broadband Linier Amplifier parts list : C1 : 0.033 µF mylar C2, C3 : 0,01 µF mylar C4 : 520 pF dipped mica C5, C7, C16 : 0.1 nF ceramic C6 : 100 uF/15 V electrolytic CS : 500 µF/6 V electrolytic C9, C10, C15, C22 : 1000 pF feed through C11, C12 : 0.01 pF C13, C14 : 0.015 Pic mylar C17 : 10µF/35 V nlectroiytnc C18, C19, C21 : Two 0.068 pF mylars in parallel C20 : 0.1 uF disc ceramic C23 : 0.1 µF disc ceramic R1 : 220 Ω, 1/4 W carbon R2 : 47 Ω , 1/2 W carbon R3 : 820 Ω, 1 W wire W R4 : 35 Ω, 5 W wire W R5, R6 : Two 150 Ω, 1/2 W carbon in parallel R7, R8 : 10 Ω, 1/2 W carbon R9, R11 : 1 k, 1/2 W carbon R10 : 1 k, 1/2 W potentiometer R12 : 0.85 Ω (6 5 1 Ω or 4 3.3 Ω 1/4 W resistors in parallel, divided equally between both emitter leads) L1 : .33 pH, molded choke L2, L6, L7 : 10 pH, molded choke L3 : 1 8 uH (Onmite 2 144) L4, L5 - 3 ferrite beads each L8, L9 - 22 uH, molded choke Q1 : 2N6370 Q2, Q3 : 2N5942 Q4 : 2N5190 01 : 1N40O1 D2 : 1 N4997 J1, J2 : BNC connactors
T1 : 4 1 Transformer, 6 turns, 2 twisted pairs of #26. AWG enameled wire (8 twists per inch)
T2 : 1 1 Balun, 6 turns, 2 twisted pairs of #24 AW enameled wire (6 twists per inch)
T3 : Collector choke, 4 turns, 2 twisted pairs of #22 AWG enameled wire (6 twists per inch)
T4 : 1 4 Transformer Balun, A&B – 5 turns, 2 twisted pairs of #24, C – 8 turns, 1 twisted pair of #24 AWG enameled wire (All windings 6 twists per inch).
( T4 – Indiana General F624-1901, – All others are Indiana General F62 / 801 ferrite toroids or equivalent.)
