Tube for ACOM 2100/1500 – 4CX1000A

755.00

2 in stock (can be backordered)

SKU: 4CX800A-1 Category:

Description

 

Cutting-Edge Technology Enhances a Classic Design
At the core of the ACOM 2100 & the ACOM 1500  is a classic HF amplifier design, employing a Single 4CX1000A tube
Uses a ceramic and metal radial beam tetrode with plate
dissipation of 1000 W which is specially designed for class
AB1 RF linear amplifier operation. t

 

 

Additional information

Weight1.5 kg
Specifications

RF output: 1500-2000 W keyed carrier or SSB – no time limit. Constant carrier modes 1500W RF output – no time limit with auxiliary cooling fan.
Frequency coverage: All amateur bands 1.8-24.5 MHz. 28 Mhz only with modification by licensed amateurs.
Bandchange / Tuneup: Initial output matching process in less than 3 secs (typically 0.5 secs). Preset matching process / bandchange takes less than 0.2 second to move to different segment, same band and less than 1 sec for QSY to different band.
Tuning memories: Non-volatile for up to 10 antennas per frequency segment.
Drive power: Typically 50W for 1500W output.
Input impedance: 50 ohms nominal. VSWR <1.5:1.
Output tolerance: Up to 3:1 VSWR (2:1 on 160m) at full rated output before SWR protection circuit actuates. Higher SWR's tolerated at lower output.
Harmonics: At least 50 dB below peak output at 1500W.
Intermodulation: At least 35 dB below peak output at 1500W.
T/R and keying: Vacuum Relay: QSK capable.
Tubes and circuit: 4CX800A/GU74b tetrodes (2); resistive grid, PI-L output with RF negative feedback. Regulated screen grid voltage.
ALC: Negative going, grid derived, -11v max, rear panel adjustable.
Metering: Comprehensive. Remote Control Unit provides flexible monitoring of all amplifier operating parameters.
Protection: Grid and screen current limiting, power inrush (soft-start provided), trip to excessive reflected power, RF arcs, password access protection if needed, correct T/R sequencing, tube exhaust overheat, cover interlock and HV crowbar.
Fault diagnosis: Remote Control Unit display and LED's plus "INFO Box" for 12 most recent events. PC interface (RS-232), plus remote phone line interrogation feature.
Cooling: Full cabinet forced-air. Rubber isolated blower.
Transformer: 3.5 kVA with strip-wound Unisil-H? core.
AC power requirements: 100/120/200/220/240 VAC nominal. 50-60 Hz. 3500VA single phase at full power.
Physical: RF Unit: 17-1/4"W X 7"H X 17-3/4"D
-(440W x 180H x 450D mm).

-RCU: 5-1/4"W X 6-3/4"D X 1" H

-(135 X 25H X 170D mm).

-Shipped in two cartons total weight (96 Lbs/42.5kg). Plug in transformer for ease of installation and transport.

-No controls on RF unit except ON/OFF. RF unit may be located up to 3 metres (20m with optional cable) from RCU.

Manual

https://michaelh192.sg-host.com/wp-content/uploads/2020/12/ACOM-2000A-Manual.pdf

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