ACOM 1010 700 W PEP 160–10 m
HF linear amplifier with 4CX800A (GU74B) tetrode, 1.8–29.7 MHz, 700 W PEP / 500 W carrier, two antenna outputs
The ACOM 1010 is a tube linear amplifier for all amateur bands from 1.8 to 29.7 MHz, with 700 W PEP or 500 W continuous carrier and a single Svetlana 4CX800A (GU74B) tetrode.
Product description
The TRI (True Resistance Indicator), an ACOM innovation, shows the load value of the plate circuit and allows fast, precise tuning, usually in less than 10 seconds, at a quarter of rated power. After a protection trip, the amplifier returns to OPERATE by itself.
No external tuner is needed as long as the antenna shows an SWR up to 3:1. The amplifier withstands up to 240 W of reflected power, overdrive up to 100 ms and tuning errors; it delivers more than half power at 75% of mains voltage and tolerates voltage drops up to 10 ms and 15% overvoltage, making it suitable for generator use on field days and DXpeditions.
Two LED bars show forward and reflected peak power; other LEDs signal grid 1, grid 2 and plate faults. Two antenna outputs are selected from the front panel. Only a "ground on TX" signal and about 60 W of drive are needed for full power.
The bias optimisation circuit reduces tube dissipation and extends tube life. The high-voltage power supply eliminates the switch-on transient and can be configured for 8 mains voltages between 100 and 240 V.
Key features
500 W continuous carrier.
Tuning in less than 10 seconds.
Antenna SWR up to 3:1.
Selectable from the front panel.
Technical specifications
| Coverage | Amateur bands 1.8–29.7 MHz |
| Output power | 700 W PEP · 500 W continuous carrier |
| IMD | better than −35 dB relative to rated output |
| Hum and noise | better than −40 dB |
| Harmonics | better than 50 dB |
| Impedance | 50 Ω unbalanced, UHF connectors (SO-239) |
| Input SWR | < 1.3:1 over 1.8–30 MHz, without tuning or switching |
| Bypass | SWR < 1.1:1, maximum 200 W |
| Output matching | SWR up to 3:1 or more |
| RF gain | 11 dB typical (50–70 W for rated power) |
| Tube | 4CX800A (GU74B) tetrode, 600 W dissipation, forced air |
| Power supply | 85–132 / 170–264 V AC (taps 100–240 V, +10% −15%), 50–60 Hz, single phase, 1200 VA |
| Dimensions and weight | 406 × 315 × 150 mm, 16 kg |
| Operating environment | 0…+50 °C, humidity up to 95% at 35 °C, up to 3000 m above sea level |
| Compliance | CE (safety and EMC), FCC |
HamRadioShop | Linear amplifiers
