Informações sobre o equipamento:

National NCL 2000 Amplificador
Fabricante:
National
Modelo: NCL 2000
Data:
Categoria: Áudio, Vídeo, TV, Multimédia
Grupo: Amplificador
Descrição: Linear Power Amplifier
Informações:
                                    

Estes manuais estão disponíveis para os equipamentos acima:

National -- NCL 2000 -- Manual de serviço
O nome do arquivo: National-3885-Manual-Page-1-Picture
Tipo manual: Manual de serviço
Páginas: 33
Tamanho: 4.03 Mbytes (4230218 Bytes)
Idioma: Inglês
Revisão:
Manual-ID/Number:
Data:
Qualidade: Scaned documento, todas legível.
Envie data:
MD5: 8f06f2e74f8582861d3a8cfb8e367ee6
Downloads: 485 desde 09 Janeiro 2013
Informações:
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
National-3885-Manual-Page-1-Picture
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