Ameritron ALS-606S 600W 160-6M Solid State Amplifier with ALS-600SPS Switching PSU

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Ameritron ALS-606S 600W 160-6M Solid State Amplifier with ALS-600SPS Switching PSU

The ALS-606S is a compact 600-watt nominal PEP output amplifier. It uses an external power supply system.

This amplifier covers 160-6 meters (no mod required). Nominal drive power is 75- watts or less. 

The ALS-606S interfaces with most modern amateur radio transceivers. Supported band data input includes ICOM compatible analog voltage, Elecraft and Yaesu BCD band data, and Kenwood serial data. With proper interface cables and data, this amplifier will automatically change bands in step with transceiver band changes. Automatic band selection using a band data port or band decoded bus requires purchasing an Ameritron interface cable for your radio.

The Ameritron ALS-606S is 600-watt nominal output, 160 through 6 meter amateur radio band, solid-state amplifier. The ALS-606S uses four 50-volt linear RF MOSFETS. These MOSFET’s are specifically designed for linear power amplifier applications, rather than non-linear or pulse service. They provide lower SSB distortion when compared to nonlinear application solid-state devices in SSB service. Fan speed is regulated by temperature sensors; assuring conservative cooling with minimal noise.

Nominal driving power is 75-watts for 600-watts output (approximately 9 dB gain) on most bands. The compact 9-1/2” wide by 7” high amplifier package (depth only 14”) fits nearly any station configuration. This attractive desktop amplifier unit weighs approximately 15 pounds. An external 50-volt 25-ampere CCS power supply powers the ALS-606S. The ALS-600SPS switching regulated supply is included with the ALS-606S. This power supply operates on all standard residential power line voltages.

Rig Interface Cable Chart
DB-13D Icom IC-706/7000/718 & others w/13-pin din
DB-7DI Icom with ACC2 7-pin din
DB-DB7DK Kenwood with DB9 except TS-480
DB-DB8MK Kenwood TS-480
DB-8MY2 Yaesu FT-897/857/100/817/840/890/991
DB-8DY Yaesu with standard 8-pin band data
DB-10MY Yaesu FT-450/950/1200
DB-DB15Y Yaesu FT-DX3000

ALS-606S Amplifier Standard Features:

  • 160 through 6-meter operation, full-power on six meters.
  • Four conservative linear-service rated 50-volt MOSFET transistors.
  • New push-pull stripline PA layout with exceptional VHF performance.
  • Energy-efficient solid-state design greatly reduces heat, <100-watts power line draw on receive.
  • Exceptional harmonic suppression.
  • Operational in a few seconds, no long filament warm-up time.
  • Clean layout with easy-to-service modular construction.
  • Quiet variable-speed forced-air cooling system.
  • Power module current and voltage meters with LED illumination.
  • Accurate PEP Forward and PEP Reflected output power metering.
  • Reflected power protection.
  • Thermal overload protection.
  • Bandswitch error protection.
  • Easy to understand front panel LED indicators for rapid fault-error diagnosis.
  • Standard negative-going ALC output with front panel adjustment.
  • ALC metering and ALC LED indicator.
  • Fully-regulated external switch mode power supply, or linear unregulated supply.
  • Compact size 14” deep x 7” high x 9.5” wide.
  • Weight amplifier section 15 pounds.
ALS-600SPS Switching Power Supply Standard Features:
  • Efficient operation from 100-130 volts ac (12 amperes typical at full output power)
  • Low standby and receive power drain, typically less than 100-watts
  • Generator and inverter friendly with acceptable power line frequency range 40 to 400 Hz
  • Fully-regulated current-limited outputs
  • Excellent voltage regulation
  • Exceptional filtering and RFI suppression eliminates receiver birdies common to most SMPS
  • Light weight 13 lbs.
  • Inrush protection
  • An illuminated cross-needle meter monitors 50V line output voltage and current.
Band Frequency Range Notes


1.8 - 2.1 MHz
80 3.2 - 4.2 MHz
40 6.0 - 7.5 MHz
30 7.5 - 14.5 MHz USA 30-meter power limit currently 200-watts
20 7.5 - 14.5 MHz
17 14.5 - 22.0 MHz
15 14.5 - 22.0 MHz
12 22.0 - 30.0 MHz Amplifier automatically disables above 25 MHz
10 22.0 - 30.0 MHz Amplifier automatically disables below 28 MHz
6 50.0 - 54.0 MHz

Caution: This amplifier has an FCC mandated automatic disconnect and other features preventing 27-MHz operation. There is no available circuitry or control provision to circumvent this lockout.

Ameritron ALS-606S 600W Solid State Amplifier

Ameritron ALS-600SPS Switching Power Supply

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