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National NCL 2000 Verstärker
Hersteller:
National
Modell: NCL 2000
Datum:
Kategorie: Audio, Video, TV, Multimedia
Gruppe: Verstärker
Beschreibung: Linear Power Amplifier
Informationen:
                                    

Folgende Anleitungen sind hier verfügbar:

National -- NCL 2000 -- Serviceanleitung
Dateiname: National-3885-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 33
Dateigröße: 4.03 Mbytes (4230218 Bytes)
Sprache: Englisch
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Qualität: Gescanntes Dokument, alles ist lesbar.
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MD5: 8f06f2e74f8582861d3a8cfb8e367ee6
Downloads: 464 seit dem 09 Januar 2013
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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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