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Commander VHF-144 T/R Relay Board 

Содержание COMMANDER VHF-144

Страница 1: ...2 METER LINEAR AMPLIFIER Owner s Manual PALSTAR INC Command Technologies Division 9676 N Looney Road Piqua Ohio 45356 U S A Customer Service and Sales Telephone 800 773 7931 Fax 937 773 8003 E mail i...

Страница 2: ...Procedure 9 Operating Hints 10 Typical Operating Conditions Table 10 Warranty Service and Returns 11 HV Power Supply Schematic 12 AC Mains Step Start Schematic 13 Control Metering Board Schematic 14 R...

Страница 3: ...band An automatic delay circuit for proper cathode conditioning before RF drive is applied which extends tube life This is preformed by a microprocessor which also controls a step start dual relay sy...

Страница 4: ...lower Load Tuning Capacitor Input Tuning Piston Capacitor 3CPX800A7 Triode Tube Filament Transformer High Voltage Interlock Switch Duel Meter Control Board w Mutliple LED Backlighting High Voltage Boa...

Страница 5: ...adjustable Output Impedance 50 Ohms nominal Antenna Load VSWR 2 1 maximum Harmonic Suppression better than 60db down at rated output Intermodulation Distortion better than 35 dB down at rated output W...

Страница 6: ...internal RF tube compartment covers removed CONTACT WITH VOLTAGES IN THE CABINET CAN BE FATAL CLOSE QUAR TER EXPOSURE TO UNSHIELDED RF AT THESE POWER LEVELS AND FRE QUENCY IS HAZARDOUS TO YOUR HEALTH...

Страница 7: ...ol Multi turn Piston Capacitor Preset at Factory Multimeter Relative Output Grid Current LOAD Control INPUT Control STANDBY OPERATE Switch ON OFF Switch Power Ready Light RF In RF Out Bypass SWR Adjus...

Страница 8: ...e of the unit and between other equipment To switch from transmit to receive the Commander VHF 144 requires a contact closure or keying circuit capable of sinking 15ma of positive voltage 12 VDC open...

Страница 9: ...tion Switch the OPERATE STANDBY switch to the OPERATE position and key the exciter with ZERO RF drive applied The Red Transmit light should illuminate the tube will be biased on and plate idling curre...

Страница 10: ...someone changes these ad justments it will not be necessary to retune the amplifier each time you operate it Just turn the unit on wait for the green light and begin transmitting If you decide later t...

Страница 11: ...ability other than herein stated Shipping Your Amplifier Back to the Factory Due to the necessity of shipping the amplifier with the HV transformer removed please contact the factory for instructions...

Страница 12: ...12 Commander VHF 144 HV Power Supply...

Страница 13: ...13 AC Mains and Step Start Board VHF 144 13 5VAC...

Страница 14: ...14 Control and Metering Board VHF 144...

Страница 15: ...15 RF Deck VHF 144...

Страница 16: ...16 Commander VHF 144 T R Relay Board...

Страница 17: ...17 Commander VHF 144 Voltage Doubler Power Supply Board...

Страница 18: ...18 RF Deck 3CPX800A7 Triode Tube Load Tuning Capacitor Input Tuning Piston Capacitor RF Plate Choke Plate Capacitor 120pf 7 7kv...

Страница 19: ...19 Dual Meters Grid Current Scale 0 60ma Single Tube Top 0 120ma Two Tubes Mid 0 180ma Three Tubes Bottom Grid Current Scale 0 600ma Single Tube Top 0 1200ma Two Tubes Mid 0 1800ma Three Tubes Bottom...

Страница 20: ...20 Meter Board Cathode Fuse...

Страница 21: ...21 Step Start Board AC Main Fuse 20A x 2 AC Interlock Step Start Relays x 4...

Страница 22: ...22 Power Supply 470uF Capacitor 450 vdc x 8 HV Sense RF Output...

Страница 23: ...23...

Страница 24: ...24 Palstar Incorporated 9676 N Looney Rd Piqua OH 45356 USA Customer Service and Sales Telephone 1 800 773 7931 Fax 1 937 773 8003 Email info palstar com Version 1 0 2010 03 29...

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