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AMERITRON ALS-600PS, Manual

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AMERITRON ALS-600PS Manual Download Page 25

25 

SWR Detect Board 

50-0600-5 
 

Designator Description 

Part 

Number 

C501,502 

150 pF 1KV disc cap 

200-2150 

C503 not 

used 

C504 

33 pF 1KV Disc 

200-2033 

C505,506 

.01 uF 50 Vdc 

200-0416 

C507 

3-12 pF 500V TrimCap 

200-0416 

D501,502 

1N34A or equiv. 

300-0346 

R501 

3.3K 1/4 watt 

100-3330 

R502 

68 ohm 2 watt mox 

103-6800 

R503,504 not 

used 

T501 Pickup 

Toroid  10-14136 

 

 

 
 

Summary of Contents for ALS-600PS

Page 1: ...ALC Automatic Level Control 6 Thermal Overload 7 Load Fault Indicator 7 SWR Considerations 8 Power Supply Circuitry ALS 600PS 9 Line Voltage Modifications 9 High Voltage Section 10 Primary Circuit 10...

Page 2: ...n 16 Drive Power Requirements 17 Periodic Maintenance 18 ALS 600 Parts Lists Schematics 19 Meter ALC Board 19 PA Board 21 Output Filter Board 22 LED Board 24 SWR Detect Board 25 ALS 600 Chassis Compon...

Page 3: ...tch or the external load is incorrect Illuminated Power SWR meter The ALS 600 has an illuminated cross needle peak reading RF power meter Accurate directional coupler and peak storage circuits give si...

Page 4: ...witching and filter circuit makes the power supply hash free Simple power line voltage options The power supply will safely operate from 90 135 Vac in the 120 setting and 185 260 in the 240 Vac settin...

Page 5: ...three DC voltages required by the amplifier unit The high voltage section supplies approximately 50 volts at a load current of 20 amperes Export Modifications A simple modification will allow operati...

Page 6: ...ALC circuit also reduces the drive power if the SWR increases while operating with the ALC controlling the amplifier output power level The ALS 600 ALC output should be connected to the proper excite...

Page 7: ...LC circuit will vary with the exciters response to external ALC control voltages This ALC circuit will function with negative voltage ALC control systems requiring less than 10 volts Thermal Overload...

Page 8: ...In tube amplifiers that have tunable Pi or Pi L networks the only components affected by a high load SWR are those between the loading adjustment capacitor and the output connector When the output net...

Page 9: ...g This chart lists the proper jumper connections for different ranges of MAXIMUM line voltage The standard line voltage in the USA is NOT 110 and 220 volts It is almost ALWAYS above 120 volts or 240 v...

Page 10: ...maximum primary voltages of either 100 110 and 120 volts maximum voltage or 210 220 and 230 volts maximum voltage at either 50 or 60 hertz The primary circuits are fused by two fuses F1 2 that are rat...

Page 11: ...h voltage section of the ALS 600SPS uses high current switching circuit with superior filtering to produce a high current DC voltage This line is protected by F1 on the printed circuit board Primary C...

Page 12: ...e from good quality shielded cables Low level audio cables sold for use with stereo and VCR equipment are ideal The RF cables should be kept as short as possible Power Supply Location The best locatio...

Page 13: ...uires less than 12 amps at 120 Vac or 6 amps for 240 Vac The output voltage of the supply should be kept below 65 Vdc at no load for maximum component life If the no load output voltage exceeds 65 Vdc...

Page 14: ...audio type cable and standard phono connector 6 Connect the female power connector from the ALS 600PS SPS supply to the multi pin male connector on the ALS 600 rear chassis 7 The 12V connector can be...

Page 15: ...to be done to the ALC limit control unless a different transceiver is used The only adjustments for ALC will be done on front of the amplifier Follow the operator s manual for ALC adjustment The foll...

Page 16: ...output should be restricted to a power level where less than 200 watts output or 25 watts reflected power is obtained on long duty cycle modes The fan speed should be increased by replacing or supplem...

Page 17: ...o OFF OPERATE STANDBY to STANDBY 2 Plug the AC line cord into the proper voltage outlet 3 Place the power switch in the ON position The meter lamps should light and the power supply fans and the ampli...

Page 18: ...ble Periodic Maintenance The lack of extremely high voltages in this unit eliminates the chance of dirt and dust causing high voltage arcing The only requirement for periodic maintenance is to monitor...

Page 19: ...amp LM358AN 311 0725 J103 2 pin header 612 0102 J104 105 8 pin header 612 0108 J106 10 pin header 612 0110 Q101 102 2N3904 305 0645 R101 106 115 4 7K 1 2 watt 101 3470 R102 1M 1 4 watt 100 6100 R103...

Page 20: ...20...

Page 21: ...218 219 232 233 360 pF 500V 208 5688 1 FB201 202 ferrite bead w Teflon sleeving 403 0508 Q201 204 MRF 150 RF TMOS FET 305 6150 R201 204 214 211 3 3K 1 4 watt 100 3330 R202 205 212 215 5K trim pot 104...

Page 22: ...500V DM15 208 5396 C330 33 uF 50V Multilayer 205 2233 1 D301 2N6564 321 6564 D302 303 2N3904 305 0645 D304 1N34A 300 0346 L301 306 8 5 turn 1 2 ID air wound 10 13850 L302 307 8 pass toroid 10 14168 L3...

Page 23: ...23...

Page 24: ...50 0600 4 Designator Description Part Number CR401 Green LED 320 0500 CR402 Yellow LED 320 0300 CR403 Red LED 320 0522 1 J401 10 pin header 612 0110 R401 470 ohm 1 4 watt 100 2470 R402 1K potentiomet...

Page 25: ...50 pF 1KV disc cap 200 2150 C503 not used C504 33 pF 1KV Disc 200 2033 C505 506 01 uF 50 Vdc 200 0416 C507 3 12 pF 500V TrimCap 200 0416 D501 502 1N34A or equiv 300 0346 R501 3 3K 1 4 watt 100 3330 R5...

Page 26: ...200 0416 C6 C7 01 250Vac capacitor 200 2122 C8 01 KV disc capacitor 200 2121 J1 J2 SO 239 jacks 610 2126 J3 J5 phonojacks 600 1225 J6 Power connector plug 610 5012 M1a M1b 1000W 250W cross needle met...

Page 27: ...Part Number C603 2200 uF 25V radial lead 203 0207 C604 220 uF 25V radial lead 203 0565 D601 603 1N4007 or equiv 300 0266 F601 2 amp slow blow NIDL type 755 1102 F602 2 amp fast blow 755 1150 R601 10...

Page 28: ...owblow IvIDL type 755 1102 F602 2 amp AGC 755 1149 F1 2 15 amp fuses for 95 110 Vac 755 1426 12 amp fuses for 105 130 Vac or 755 1412 8 amp fuses for 200 240 Vac operation 755 1432 F3 25 amp high volt...

Page 29: ...LK RED BLUE BLUE B14 B9 B15 14V B12 14V B1 AC N BRN ORG 01 uF 01 uF 01uF 01uF 01uF 01uF BLK BLK WHT WHT AC CORD FROM CABLE F2 RELAY 1 FAN F1 YEL GRN RED RED RED WHT BLUE J1 2 BRN GRN J1 3 J1 4 J1 5 J1...

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