2 Pill Amp Schematics 1446's - With Pictures

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these are schematics to build a 2 pill with 1446 transistors..i know the pictures posted on here for this particular amp have 2879's and a driver pill, but they are just example pictures ,the schematics and parts list are correct though



























































continued in 2 pill amp schematics 1446's part 2

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continued from part 1


























parts list
R1 4.7Ω 2W Carbon Film Resistor 1 Yellow-Violet-Gold
R2, R5, & R6 100Ω 2W Carbon Film Resistor 3 Brown- Black- Brown
R3, & R4 10Ω 1/2W Carbon Film Resistor 2 Brown-Black-Black
VR1 100Ω 2W Potentiometer 1 PSF# POT2W100 Labeled
C1 100pf Silver Dipped Mica Capacitor 1 100 / 500V
C2, & C3 .01 Ceramic Disc Capacitor 2 .01 or 103
C4 390pf Silver Dipped Mica Capacitor 1 390 or 391 / 500V
C5 820 pf Silver Dipped Mica Capacitor 1 820 or 821 / 500V
C6, & C7 330 pf Silver Dipped Mica Capacitor 2 330 or 331 / 500V
C8 150pf Silver Dipped Mica Capacitor 1 150 or 151 / 500V
C9 22 uf Electrolytic Capacitor 1 22 uf / 25V
C10 22 pf Ceramic Disc Capacitor 1 22
C11 .03 uf Silver Dipped Mica Capacitor 1 Large Cap. (Not Labeled)
D1 3A / 1000V PIV Silicon Rectifier 1 PSF# 1N5408
D2 1A / 1000V PIV Silicon Rectifier 1 PSF# 1N4007
D3 Glass Signal Diode 1 PSF# 1N4148
D4 LED Indicator assy. 1 Blue LED / Resistor Pkg.
TR1, & TR2 SD1446 RF Power Transistor 2 PSF# SD1446
TR3 Switching Transistor / TO-92 1 PSF# PN2222A
FC1, & FC2 ½” x ½” Ferrite Core 2 PSF# FC.5
FC3, & FC4 ¼” x ½” Ferrite Core 2 PSF# FC.25
T1 ½” x ½” Ferrite Transformer Core 1 PSF# FT.5
T2 1/2” x 1-1/4” Ferrite Transformer Core 1 PSF# FT1.25
SW1 SPST Switch 1 PSF# SW1
RLY1 DPDT Relay 1 PSF# RLY5
Conn1, Conn2 Panel Mount SO239 UHF Connector 2 PSF# SO239B
Cabinet Aluminum Enclosure Assy. 1 PSF# AE-SM
HS1 Aluminum Heat Sink 1 PSF# AHS-SM
CB1 Pre-Drilled Copper Clad Circuit Board 1 PSF# CCB-SM
CB2 Copper Clad Circuit Board (Power Bus) 1
PS1, & 2 Pre-Cut Transistor / Pill Strips 2 PSF# PS8X
SCK1 LED Mounting Clip (Packaged w/ LED) 1
KB1 Control Knob 1
WIRE-2 26” Length of #16 Silver/Teflon Wire 1 PSF# TEF16
WIRE-3 16” Length of #20 Silver/Teflon Wire 1 PSF# TEF20
WIRE-4 8” Length of #20 Hook-up Wire (Color 1) 1
WIRE-5 8” Length of #20 Hook-up Wire (Color 2) 1
WIRE-6 12” Length of #12 Power Cable 1
COAX 7” Length RG316 Coax 1 PSF# RG316
HDW1 Hardware Kit (See Below)
SHCS #4 40 x ¼” Socket screw 4
SHCS #6 32 x ¼” Socket screw 4
Pan Head Sheet Metal Screw 4
Pan Head Machine Screw #6 32 x ½” 4
Circuit Board Spacer Washer 4
#6 Lock Washer 2
#6 32 TPI Machine Nut 4
#6 Solder Lug 2
Rubber Feet 4
Rubber Grommet 1
Scrap Circuit Board 1
Heat sink lubricant 1