Linear Amplifiers

=NOW IN STOCK=

• Up to 230W output on 435MHz
• Up to 200W output broadband
• 10W/25W/50W drive levels manually selectable
• Requires 13.8Vdc @ 40A max.
• Low noise, high gain MGF-1302 GaAsFET receive preamp with 20dB/+6dB/+15dB push button selectable receive gain levels
• Multimeter displays RF output, Vcc, auto-swr, etc.
• "N" type connectors fitted
• Numerous protection circuits

$299.00 AUD

• 30W output for 5W input
• Low noise adjustable gain receive preamp
• More details soon
• Available on special order

$799.00 AUD

• 50W input - 200W output
• Requires 13.8Vdc @ 24A peak
• 144 to 148MHz (2m) band
• Low noise receive preamp
• Weighs 2.8kg, 183x78x303mm.
• Numerous protection circuits

$1799.00 AUD

• 10/25/50W manually selectable input levels for - 350W+ output
• Requires 13.8Vdc @ 42A peak
• 144 to 148MHz (2m) band
• Low noise GaAsFET adjustable high gain receive preamp
• Metering for RF power output, Vcc, auto-swr, etc.
• Weighs 5.5kg, 245x100x355mm.
• Numerous protection circuits

• 240VAC power supply built-in
• Drive levels; 20W or 50W
• 500W SSB/CW output
• 144 to 148MHz (2m) band
• Metering of forward and reflected RF power levels

• 200W output for 10W/20W/50W input drive levels
• Rugged SGS-Thomson SD1477 RF power transistors utilised
• Low noise FET receive preamp with wide dynamic range and 10db gain - as per Andrews Comms. suggestion
• High/low output (130W at low)
• Reverse polarity, overdrive and high swr protection circuits
• Weighs 2kg, 180x68x255mm.
• Requires 13.8Vdc @ 26A peak 

• 3.5 to 29.7MHz inc WARC bands plus 50MHz (6m) band
• Automatic band selection and filtering when used with FT-817
• 100W SSB/CW, 25W AM output
• Requires 17A maximum @ 13.8V
• Please specify if you want the "FT-817" 5W drive level version when ordering

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NEW HL-450B HF linear...P.O.A.
Available on special order

NEW! HT-200 HF+6m all-mode QRP transceiver coming!
 

• Requires 13.8Vdc @ 20A max.
• Photo will be upgraded soon

• 3.5 to 29.7MHz inc WARC bands
• Bandpass filtering by front panel push button selection
• 600W SSB, 500W CW output
• Requires 70A average @ 13.8V
• Multifunction metering
• Numerous protection circuits

• 3.5 to 29.7MHz inc WARC bands
• Front panel rotary switch bandpass filter selecting
• 500W SSB/CW RF output
• Multifunction metering
• Numerous protection circuits
• 240VAC power supply built-in

• 1.8-29.7MHz inc. WARC bands
• Maximum recommended RTTY RF output is 400W @ 50% duty cycle
• 240VAC power supply built-in
• 3.5 to 29.7MHz inc WARC bands
• Front panel rotary switch bandpass filter selecting
• RF output; 750W SSB, 650W CW, 400W RTTY
• QSK compatible for fast CW
• Multifunction metering
• Numerous protection circuits

• 1.8 to 29.7MHz inc WARC bands plus 50MHz (6m) band
• Automatic band selection decoding from Yaesu, Kenwood and Icom transceivers!
• RF output; HF 900W SSB (1kW peak output on some bands), 6m 650W SSB
• Multifunction metering
• Numerous protection circuits
• 240VAC power supply built-in

• 1.8-29.7MHz inc. WARC bands
• RF output is typically 1.5kW in SSB/CW modes. Up to 1.8kW output on 20m/15m bands, 1.2kW output on 10m.
  Maximum recommended RTTY output is 1kW for 4 minutes at 50% duty cycle
• Comprehensive protection circuitry
• Weight is 26kg
• Built-in AC supply.

• Matches linear amplifier models HL-1.5KFX, HL-2.5KFX, etc.

=NEW=
 
HL-1.1KFX 600W compact HF linear amplifier due in August...A$3499

Genuine 1.8~30MHz amateur radio linear amplifier. Transistorised bias.
Features reverse DC voltage plus high SWR plus high temperature and out-of-balance protection circuitry.
Maximum drive 100W SSB. Nominal drive 80W. Requires 13.8Vdc at an average current of 50A. Peak current 70A.
Gold finish. Large heatsink. Extra large fan fitted.
A very solid solid-state linear amplifier, indeed!
New shipment just landed!

Size; 195mm wide x 95mm high x 270mm deep. Weight; 3.5kg.

• FM/CW 5W input = 55W output
• Adjustable gain receive preamp with independent switching
• 1 x 2SC-2630 output transistor
• 7A approx. current @13.8Vdc
• Dimensions;120mm w x 47mm h x 151mm d. Weight; 0.9kg.
• In stock now!

• FM/CW 5W input = 50W output
• Adjustable gain receive preamp with independent switching
• 1 x MFJ-658 output transistor
• 17A approx. current @13.8Vdc
• Only suitable for use on 70cm!
• Discontinued and no stock is available from ACS or factory

• All-mode 5W in = 120W output
• Features a low noise adjustable gain receive preamp with independent preamp switching
• 1 x 2SC-1946A driver transistor, 1 x 2SC-2782 output transistor
• 18A approx. current required
• Reverse DC polarity and high SWR protection
• Dimensions;125mm w x 47mm h x 220mm d. Weight; 1.3kg.
• Plenty in stock now!
• New gold paint finish!
• Plenty in stock!

• All-mode 25W in = 200W output
• Low noise receive preamp with independent preamp switching
• Receive preamp now upgraded to extra low noise, higher gain, MGF-1302 GaAsFET by ACS!
• 2 x 2SC-2782 output transistors
• 24A approx. current required
• Reverse DC polarity and high SWR protection
• High DC voltage warning LED
• Dimensions;183mm w x 77mm h x 310mm d. Weight; 2.9kg.
• Plenty in stock now!

• All-mode 5W in = 200W output
• Low noise receive preamp with independent preamp switching
• 1 x 2SC-2630 driver, 2 x 2SC-2782 output transistors
• 32A approx. current required
• Reverse DC polarity and high SWR protection
• High DC voltage warning
• Dimensions;183mm w x 77mm h x 310mm d. Weight; 3kg.
• One in stock now!

• All-mode operation
• 5W in = 70W out, 20W in = 200W out, 50W in = 300W out
• Now fitted with low noise MGF-1302 GaAsFET receive preamp. Independent preamp switching
• Now fitted with adjustable SSB delay circuit board
• 4 x 2SC-2782 output transistors
• 44A approx. current required
• Reverse DC polarity and high SWR protection
• Dimensions;250mm w x 100mm h x 360mm d. Weight; 4.9kg.
• Plenty in stock now!

• 160m to 10m band coverage, including WARC Bands
• Inbuilt AC power supply
• Dual illuminated meters
• 10m band performance improved by Andrews Comms.
• Upgraded for increased stability and tuned for Australian band segments by Andrews Comms.
• Features three inexpensive 811A tubes
• RF output: SSB 600W, CW 500W
• Tuned input coils

• 160m to 10m band coverage, including WARC Bands
• Inbuilt AC power supply
• Dual illuminated meters
• 10m band performance improved by Andrews Comms.
• Upgraded for increased stability and tuned for Australian band segments by Andrews Comms.
• Four fully neutralised 811A tubes provide smooth tuning
• RF output: SSB 800W, CW 600W
• Tuned input coils

The DX-1600 is a class AB1 passive grid high power RF amplifier using the Svetlana 4CX-1600B external anode ceramic tetrode valve. This amplifier is a combination of the latest technology, the best components and state of the art circuit design. The result is truly world class.

We are currently not manufacturing these amplifiers and regret that we have no stock of them. We occasionally have good used examples in stock.

The 4CX1600B is an extremely rugged, high gain and highly linear valve made in Russia. These factors make this Svetlana valve and the GU-91b our first choice for consistent and excellent performance with low drive and high output power.

Specifications

• Frequency range: 1.8 through 29.7Mhz inc. the three WARC bands.
• Circuit type: Passive grid, Class AB1.
• Cooling method: Dual speed fan forced air ducting and cooling
• Dimensions: 500mm x 500mm x 225mm
• Input impedance: 50 ohms unbalanced
• Modes: SSB,CW,AM,FM,RTTY,SSTV
• Output impedance: 50 ohms unbalanced
• Plate voltage: 3.2kV approximately
• Power requirement: AC 240V, 50Hz, 16A max.
• Power valve: Svetlana 4CX-1600B or GU91b tetrode x 1
• Protection: Amplified ALC, over grid current alarm, over temperature alarm, soft and stepped AC start-up & AC input safety interlock.
• RF connectors: Two UHF (SO-239) sockets.
• RF input: Less than 100W for full RF output.
• RF output: Approximately 2000W SSB, 1500W CW.
• Weight: 36Kg approximately