Linear Amplifiers

         We proudly stock Australia's largest range of high quality and high     
        performance linear amplifiers, by far...and at Australia's best prices!

          ANDREWS PA-200V/C 2m 200W LINEAR ON SPECIAL...A$399!!

      We mail order worldwide - contact us now to order! Updated 16-02-10
           Customer-caused damage is not covered by warranty, of course.
All listed amplifiers are not designed or warranted for operation in very high duty cycle applications or high/variable swr loads, e.g. plasma generation...

Tokyo Hy-Power linear amplifiers

Exclusive Australasian factory-direct importer/stockist with one year factory-backed Australian warranty!

Outstanding quality, design and engineering from the world's best amateur radio linear amplifier manufacturer!

All Aust/NZ enquiries received by THP are referred to us

More Info


HL-45B
HF/6m 45W output linear amplifier

New low price!
$629.00 AUD
Why pay A$649?

A compact solid-state linear amplifier with maximum output power of 45W. Featuring built-in auto band select function when combined with YAESU FT-817.

  • Frequency range: 1.8 - 28MHz and 50MHz (including all WARC bands)
  • Modes: SSB/CW/FM/AM
  • DC requirement: 13.8V @ 8.5A maximum
  • RF drive (max.): 5W
  • SSB/CW RF power output: 45W maximum
  • Several protection circuits
HL-450B HF 400W output linear

Super low price!
$1399.00 AUD
Why pay A$1599?

The HL-450B has a built-in auto band-select function. It uses newly developed micro processor based technology that permits smooth automatic operation when driven by a radio in either SSB or CW mode.
In addition, manual band setting is possible as well. It is designed to be "user friendly".

  • Frequency Range: 1.8 - 28MHz (including all WARC bands)
  • Modes: SSB/CW/FM/AM
  • DC requirement: 13.8V @ 60A maximum
  • RF drive (max.): 50W
  • SSB/CW RF power output  across HF:  400W maximum, 350W typically, 300W minimum
  • Protection circuits

HL-700B mobile DC linear
HF bands 600W SSB output

New low price!
$1799.00 AUD
In stock! Why pay A$1999?
  • Frequency Range: 3.5 to 29.7MHz inc. WARC bands
  • Bandpass filtering by front panel push button selection
  • Modes: SSB/CW/FM/AM
  • RF drive: 100W max., 70W av.
  • RF output: 600W (700W some bands) SSB, 500W CW output
  • Requires 70A average @ 13.8V
  • Multifunction metering
  • Numerous protection circuits
HC-1.5KAT 1.5kW rated
automatic antenna tuner

New low price!
$1699.00 AUD
Deposit required
  • Matches linear amplifier models HL-1.5KFX, HL-2.5KFX, etc.

HL-1.1KFX 600W compact HF linear amplifier

Super low price!
$3799.00 AUD
Deposit required

The lightest and most compact 600W HF amateur radio linear amplifier commercially manufactured! This world-class HF amplifier has a built-in switch mode power supply in order to save weight. Weighs only 9.5kg. Ideal for DX expeditions.

  • Frequency range: 1.8 - 29.7MHz including WARC bands
  • Modes: SSB / CW /(RTTY)
  • AC power: AC 200~260V, 50/60Hz @ 7.5A maximum or AC 100~130V, 50/60Hz @ 15A
  • RF drive: 65 - 90W typically, 100W maximum
  • Output power: 600W SSB (p.e.p) typically, RTTY 400W maximum
  • Multifunction metering
  • Numerous protection circuits
  • Built-in 240AC supply
NEW! HL-1.2KFX linear
HF bands 750W SSB/650W CW

Super low price!
$3999.00 AUD
In stock! Save A$250
  • Frequency Range: 1.8-29.7MHz including WARC bands
  • RF power output levels: SSB (p.e.p) 750W, CW 650W
  • Maximum recommended RF output power in RTTY mode is 400W @ 50% duty cycle
  • 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
  • Built-in 240AC supply


 

 HL-1.5KFX linear
HF 900W SSB plus 6m 650W SSB

Super low price!
$4999.00 AUD
In stock! Save A$800
  • 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 (50MHz) 650W SSB output
  • Multifunction metering
  • Numerous protection circuits
  • Built-in 240VAC power supply

James, VK2JN, says "The HL-1.5KFX is the best amateur radio product I've ever owned - it's just gorgeous".

Chris says he wouldn't have any other linear and he also says it's very quiet
HL-2.5KFX MOSFET linear
HF bands 1500W SSB output

New low price!
$9,999.00 AUD
Deposit required
  • 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 and 1.2kW minimum output on 10m
  • Maximum recommended RTTY output is 1kW for 4 minutes at 50% duty cycle
  • Multifunction metering
  • Comprehensive protection circuitry
  • Weight is 26kg
  • Built-in 240AC power supply

     

 

HL-206V linear
6m/50MHz band 200W output

$999.00 AUD
Deposit required
  • 200W RF output for 10W/20W/50W input drive levels
  • Rugged SGS-Thomson SD1477 RF power transistors utilised
  • Low noise FET receive preamp has wide dynamic range and 10db gain - as per Andrews Communications suggestion
  • High/low output (130W at low)
  • Protection circuits for reverse polarity, overdrive and high swr
  • Weighs 2kg, 180x68x255mm.
  • Requires 13.8Vdc @ 26A peak 
HL-100BDX linear
HF plus 6m band 100W output

New low price!
$749.00 AUD
Not A$899 here!
  • 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

HL-200V50 linear
2m/144MHz band 200W output

New low price!
$599.00 AUD
Deposit required

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


 
HL-350VDX FET linear
2m/144MHz band 350W output

New low price!
$1799.00 AUD
Why pay A$1999?
  • 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.
  • Numerous protection circuits
  • Weighs 5.5kg, 245x100x355mm.

HL-500V linear
2m/144MHz band 500W output
 
New low price!
$4299.00 AUD
You save A$190!
Deposit required
  • 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
  • Numerous protection circuits
  • Built-in 240AC supply

*************************

Please be aware that ATRC P/L is not a THP factory-authorised THP dealer or importer and as such cannot provide THP-supported warranty.
They are an unauthorised parallel importer who hypocritically complain about others who parallel import.
=NEW=

HL-250UFX FET linear
UHF band 200W output

$2399.00 AUD
In stock!
  • Up to 230W output on 435MHz
  • Up to 200W output broadband
  • New 5W/12W/25W drive levels, manually selectable
  • Requires 13.8Vdc @ 42A 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.
  • Numerous protection circuits
  • "N" type connectors fitted
 
ANDREWS HF amateur radio linear amplifiers

Excellent value, quality and high performance!

Factory Direct importer
 

Andrews DX-500
HF Band 600W SSB output linear amplifier

Outstanding value!
$999.00 AUD


Genuine 1.8~30MHz amateur radio linear amplifier. Transistorised bias.
Up to 600W SSB, 550W CW, RF power output on most HF amateur bands.
Protection circuits for reverse DC voltage, high antenna SWR, high temperature and out-of-balance conditions. Proven extremely reliable!
Maximum drive; 100W SSB. Nominal drive; 80W SSB.
Requires 13.8Vdc at an average current of 50A and peak current of 70A.
Gold colour finish. Large heatsink. Extra large fan fitted.
A very solid solid-state high power HF linear amplifier, indeed!

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

ANDREWS VHF/UHF linear amplifiers

Excellent value, quality and of excellent performance!
 

PA-1011V
2m Band 110W linear amplifier

$349.00 AUD
  • All-mode 5W in = 110W output
  • Features a low noise, high gain receive preamp with independent preamp switching
  • 1 x 2SC-1946A drive transistor, 1 x 2SC-2782 output transistor
  • Requires 13.8Vdc @ 18A (approximately) of current
  • Protection circuits for reverse DC polarity and high SWR
  • New gold paint finish!
  • Dimensions;125mm w x 47mm h x 220mm d. Weight; 1.3kg.
PA-200V/C
2m Band 200W linear amplifier
with MGF-1302 preamp upgrade!

 Super low price!
$399.00 AUD
  • 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
  • 13.8Vdc @ 25A maximum
  • Protection circuits for reverse DC polarity and high SWR
  • High DC voltage warning LED
  • Dimensions;183mm w x 77mm h x 310mm d. Weight; 2.9kg.

PA-200V/H
2m band 200W linear amplifier

$499.00 AUD
  • 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
  • Requires 13.8Vdc @ 32A (approximately) of current
  • Protection circuits for reverse DC polarity and high SWR
  • High DC voltage warning LED
  • Dimensions;183mm w x 77mm h x 310mm d. Weight; 3kg.
PA-350W
2m band 300W linear amplifier
with MGF-1302 preamp upgrade!

New low price!
$799.00 AUD
  • All-mode operation
  • 5W in = 70W out, 20W in = 200W out, 50W in = 300W out
  • Receive preamp now upgraded to extra low noise, high gain, MGF-1302 GaAsFET by ACS!
  • Independent preamp switching
  • Now fitted with ACS  SSB delay circuit board with front panel adjustable delay control knob!
  • 4 x 2SC-2782 output transistors
  • Requires 13.8Vdc @ 44A (approximately) of current
  • Protection circuits for reverse DC polarity and high SWR
  • Dimensions;250mm w x 100mm h x 360mm d. Weight; 4.9kg.
Andrews HF 300W+ linear amplifier
Type Price $(AUD)
Andrews PA-888. Delivers 340W SSB output for 20W max. SSB input Has a pair of 2SC-2879 linear characteristic transistors in push-pull.
Features a low noise receive preamplifier. Has a 6-position rotary-switch for selectable power output levels. Will work from 3.5 to 30MHz, but best performance is from 10 to 30MHz. Large 80mm square fan fitted. Front panel fan switch, too. Light gold colour finish.
Dimensions are; 195mm w x 95mm h x 180mm d. Weighs 2.2kg.
Similar in style and appearance to our ACS DX-500, pictured above...		 $399.00
 
Palomar HF linear amplifiers
Type Price $(AUD)
Palomar TX-2250/2879. Delivers up to 340W SSB/100W AM output. Handles up to 30W pep SSB drive. Features a pair of 2SC-2879 linear design transistors, independently switchable low noise receive preamplifier (ACS recommendation), 4 rotary-switch selectable power levels, 3-30MHz frequency coverage, rear panel adjustable SSB delay.   $479.00
Palomar-250. Delivers 100W AM/200W SSB output, has 3 rocker-switch selectable power output levels, low noise receive preamplifier,  5W AM/15W SSB maximum drive, 3-30MHz frequency coverage, etc. $349.00
Ameritron HF linear amplifiers

More Ameritron linear amplifiers available - see list below

AL-811 Linear Amplifier

New low price!!
$1499.00 AUD
Plenty in stock!
  • 160m to 10m band coverage, including WARC Bands
  • Inbuilt AC power supply
  • Dual illuminated meters
  • 10m band performance greatly improved by Andrews Comm's!
  • Upgraded for increased stability and tuned for Australian band segments by Andrews Comm's
  • Checked by spectrum analyser
  • Features three inexpensive 811A tubes
  • RF output levels; SSB 600W, CW 500W
  • Tuned input coils
AL-811H Linear Amplifier

New low price!!
$1799.00 AUD
Plenty in stock!
  • 160m to 10m band coverage, including WARC Bands
  • Inbuilt AC power supply
  • Dual illuminated meters
  • 10m band performance greatly improved by Andrews Comm's!
  • Upgraded for increased stability and tuned for Australian band segments by Andrews Comm's
  • Checked by spectrum analyser
  • Four fully neutralised 811A tubes provide increased stability, greater linearity and smoother amplifier tuning
  • RF output levels; SSB 800W+, CW 600W
  • Tuned input coils
Ameritron HF linear amplifiers

New lower prices!
Type Price $(AUD)
AL-1500 3CX1500/8877 x 1; provides 1500W+ SSB output  $6899.00
AL-1200 3CX1200A7 x 1; provides 1500W SSB output $6899.00
AL-800H 3CX800A7 x 2; provides 1500W SSB output $6299.00
AL-800 3CX800A7 x 1; provides 1250W SSB output $3799.00
AL-572 572B x 4; provides 1300W SSB output $3199.00
AL-80B 3-500Z x 1; provides 1000W SSB output $2599.00
AL-811HD NEW! 572B x 4; provides heavy-duty 800W+ SSB output $2499.00
AL-82 3-500Z x 2; provides 1500W SSB output $5399.00
ALS-1300 NEW! Solid-state, 8 x MRF150s provide 1200W o/p, w/P.S. $4799.00
ALS-500M Solid-state, 12Vdc required; provides 500W output $1499.00
ALS-600S  Solid-state, incl. switch-mode p/s; provides 600W output $2799.00
Ameritron antenna tuners and accessories

New lower prices!
Type Price $(AUD)
ADL-1500 Oil-filled 1500W rated dummy load $139.00
ADL-1500X Non-oil-filled 1500W rated dummy load - requires oil $99.00
ADL-2500 Dry dummy load, fan-fitted, 2500W rated $389.00
ARB-704 Relay box for relay switching linear amplifiers $119.00
ARB-70412 Relay box for IC-706 series, inc. ALC, needs cables $119.00
ARF-1000 RF filter, 1.5-30Mhz, 1kW SSB rated $289.00
ARI-500 Auto band switch radio interface $239.00
ATR-20 Roller inductor fitted antenna tuner, 1500W rated $729.00
ATR-30 Silver plated inductor antenna tuner, 3kW rated $949.00
AWM-30 Peak reading RF wattmeter, has 300W and 3kW power ranges $319.00
MIA-3 Power on/off remote relay $99.00
PNP-13D Cable $49.00
PNP-5DY Cable $49.00
PNP-7D Cable $49.00
PNP-8D Cable $49.00
PNP-8MK Cable $49.00
RCS-4X 4-position antenna switch, 220V; good for 1.8-60MHz $349.00
RCS-8VLX 5-position HF-UHF antenna switch $379.00
RCS-8VNX "N" connector fitted remote antenna switch $339.00
RCS-10 8-position remote antenna switch, good for HF bands $309.00
RCS-12C 8-position automatic antenna switch controller unit only $499.00
SDA-100 "Screwdriver" type 3.5-30MHz mobile antenna $789.00
SDC-100B "Screwdriver" antenna controller unit has digital display $189.00
SDC-102 Programmable "Screwdriver" antenna controller unit $239.00
SDM-100 Remote antenna mount for SDA-100 $159.00
SRS-1001 Remote antenna switch for Hi-Q antennas $39.00
SWP-100 Whip antenna for use with SDA-100 $49.00
Linear amplifier relay boxes, adaptors and accessories
Type Price $(AUD)
Andrews "Icom radio-to-linear interface relay box" with DIN adaptor lead (one appropriate DIN plug fitted at each end) - suitable for IC-706/IC-7000 series transceivers. Made in Australia.  $89.00
Andrews "Yaesu radio-to-linear interface relay box" with DIN adaptor lead (one appropriate DIN plug fitted at each end) - suitable for FT-857/897 series transceivers. No ALC lead supplied - use CT-68 for ALC connection, if required. Made in Australia. $89.00
Andrews "Kenwood radio-to-linear interface relay box". Special order! $89.00
Andrews DX-1600 series of linear amplifiers

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 made this Svetlana valve and also the GU-91b our first choice for consistent and excellent performance with low drive and high RF 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
RF power valves/tubes
Type Price $(AUD)
12BY7 - driver valve - surplus - excellent condition $35.00 each
6JS6C - transceiver output valve (one only) $80.00 each
572B - linear amplifier valve - new $150.00 each
6146B - transceiver output valve - new $80.00 each
6146B - transceiver output valve - surplus - excellent condition $50.00 each
6146W - transceiver output valve - new $75.00 each
811A - linear amplifier valve - new $79.00 each
3-500ZG - linear amplifier valve - new Now $299.00 ea.
Other types available to order. Limited stocks of some valves. P.O.A
High power RF transistors
Type Price $(AUD)
MRF150 (Macom brand) $99.00
MRF-247 80W VHF $99.00
MRF-630 $49.00
MRF-648 $99.00
MRF-650 60W UHF  $99.00
RD70VHF1 $99.00
SD1446 HF $79.00
SRF2072 60W HF $49.00
SRF7000 (used) $20.00
2SC1971 $39.00
2SC2097 80W HF $89.00
2SC2290 80W HF $79.00
2SC2381 UHF driver $99.00
2SC2695 UHF $89.00
2SC2904 100W HF $99.00
2SC2905 45W UHF $59.00
2SC2879 100W HF $89.00
2SC2879A 100W HF $89.00
2SC3102 60W UHF $119.00
2SC4989 60W UHF $119.00
Other types available to order P.O.A
Surplus valves - limited stock
Type Price $(AUD)
1B3GT $9.00
5AS4 $9.00
6AV6 $9.00
6AW8A $9.00
6BL8 $9.00
6BX6 $9.00
6CB6A $9.00
6CK6 $9.00
6DQ6A $9.00
6DT6 $9.00
6DX6 $9.00
6EH7  $9.00
6E7J $9.00
6GV8 $9.00
6U9 $9.00
6X9 $9.00
12BH7 $9.00
RF power modules
Type Price $(AUD)
Many types available...call us to order P.O.A
Minimum parts order value A$20.00

FETs and MOSFETs
Type Price $(AUD)
MGF1302. Has extra low NF (noise figure) $15.00
3SK121Y $15.00
Andrews Communications Systems
Shop 8, 41-51 Bathurst St, Greystanes, NSW 2145
Telephone: (02) 9636 9060, (02) 9688 4301