National Radio Company NCL 2000 Amplificatore
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Modello:
NCL 2000
Data:
0
Categoria:
Gruppo:
Descrizione:
Linear Power Amplifier
Tipo di manuale:
Manuale di servizio
Pagine:
33
Dimensione:
4.03 Mbytes (4230218 Bytes)
Lingua:
english
Revisione:
ID del manuale:
Data:
Qualità:
Documento scansionato, tutto leggibile.
Data caricamento:
2013 01 09
MD5:
8f06f2e74f8582861d3a8cfb8e367ee6
Scaricamenti:
1557
Informazioni
GENERAL DESCRIPTION ... 3 INSTALLATION ... 4
2.1 CAUTION
2.2 Unpacking and Tube Installation
2.3 Power Connection
2.4 Antenna Connection
2.5 ALC Connection
2.6 Exciter Requirements
2.7 Exciter Connections
2.8 RF Exciter Connection (Transceiver)
2.9 RF Exciter Connection (Separate Transmitter and Receiver
With External Antenna Transfer Relay)
2.10 RF Exciter Connection (Separate Transmitter and Receiver
Without External Antenna Transfer Relay)
2.11 Relay Connection
2.12 Ground Connection
OPERATION ... 8
3.1 Explanation of Controls
3.2 Preliminary Adjustment
3.3 CW Tune-Up Procedure
3.4 SSB Tune-Up Procedure
3.5 AM Tune-Up Procedure
THEORY OF OPERATION ... 12
4.1 Class of Operation
4.2 Grid Bias Supply
4.3 Input Circuit
4.4 ALC
4.5 Output Circuit
4.6 Metering
4.7 Primary Power Circuits
4.8 CW-SSB Mode Selection
4.9 Antenna and Transmit — Standby Switching
4.10 Cut-Off Bias
i SERVICE INSTRUCTIONS ... 15
5.1 Tube Replacement
5.2 Filter Capacitor Board Removal
5.3 Cabinet Removal
5.4 Front Panel and Side Gusset Removal
5.5 Regulator Transistor Change
5.6 Air System Cleaning
5.7 Grid Resistor Tap Change
i TROUBLE SHOOTING ... 17 1 PARTS LIST