AMERITRON MFJ-216 Instruction Manual Download Page 8

MFJ-216 Instruction Manual                                         Deluxe Amplifier Saver

8

Parts List

Designator

Description

P/N

R3, R4

Resistor, 1K OHM

100-3100

R5

Resistor, 10K OHM

100-4100

R1

Resistor, 47K OHM

100-4470

R6, R7

Resistor, POT, 500K OHM

155-5500-1

C1, C3

Capacitor, .01uF

200-0004

C2, C4

Capacitor, .1uF

200-1017

D1, D2, D3

Diode, 1N4148

300-0003

D4

Diode, 1N4007

300-1005

Q1

FET, 2N7000

305-7000

U1

IC, Timer, NE555CN

311-1003

SW1

Switch, Locking, 2P2P

504-2022

SW2

Switch, Momentary., 2P2P

504-2022M

J1

Jack, RCA Phono

600-1325

Summary of Contents for MFJ-216

Page 1: ...ded keying voltages are below 25 volts dc open circuit The MFJ 216 Deluxe Amplifier Saver is a valuable troubleshooting and diagnostic aid The MFJ 216 Deluxe Amplifier Saver can be used in performance...

Page 2: ...quired to make the transmitting system linear Proper amplifier or transmitter tuning require adjustments at maximum peak power generally with maximum available drive from the exciter A continuous tone...

Page 3: ...ave limited storage time causing the meter to fall back during the time interval between RF pulses To obtain the most accurate meter readings both PULSE RATE and DUTY CYCLE should be set far enough cl...

Page 4: ...cing Maximum average power is directly related to although considerably less than maximum peak power While the lack of a good peak reading meter prevents measurement of true peak power virtually any R...

Page 5: ...LSE RATE and multiplying the PULSE RATE by 2 4 The DUTY CYCLE should be set for normal sounding CW dots during this test or a 1 1 ratio The transmission wave shape can be checked by looking at the RF...

Page 6: ...to all FCC rules regarding CW emissions Technical Assistance If you have any problem with this unit first check the appropriate section of this manual If the manual does not reference your problem or...

Page 7: ...MFJ 216 Instruction Manual Deluxe Amplifier Saver 7 Schematic...

Page 8: ...100 4100 R1 Resistor 47K OHM 100 4470 R6 R7 Resistor POT 500K OHM 155 5500 1 C1 C3 Capacitor 01uF 200 0004 C2 C4 Capacitor 1uF 200 1017 D1 D2 D3 Diode 1N4148 300 0003 D4 Diode 1N4007 300 1005 Q1 FET...

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