Coming Soon...... The OMEGA Mark V Versions I and II

"The last amplifier you will ever need, Omega."

* Version I

USA model

Band Coverage
covers all Nine amateur bands from 160 through 10 meters includingWARC bands at full power.

Modes of Operation
This been designed and built to operate at full power in any mode such as SSB, CW, AM, FM, RTTY and SSTV, and QSK, any other digital mode.

Output Power
This amplifier will comfortably deliver 1500 watts continuous carrier ("key down") into your antenna. Its conservative rating of all components and efficient cooling system allows effective operation at this power level. With two 4CX800A's or GU-84B the amp will operate well below the maximum power rating of the tube.

Drive Power
In order to achieve full output power, an input power of approximately 30 to 60 watts is required. If your transceiver delivers more output power, reduce the drive level. Specially when operating RTTY or any other continuous mode, reduce the drive level and let your transceiver run "COOL" with less strain on its output components. The Omega Mark V is comfortable with all popular transceivers such as KENWOOD, ICOM, YAESU, JRC, TENTEC, etc.

Tube
The The Omega Mark V operates with one SVETLANA GU-84B tube, or 2-4CX800A's in class AB1. The Gu-84b is a 2500 watt plate dissipation.The 4XC800A's have a plate dissipation of 800w each. both of these tubes has been constructed primarily for military communication, these tubes are physically and electrically exceptionally rugged. With additional sophisticated protection circuitry incorporated in the The Omega Mark V, it is almost indestructible.

Tube Protection
The The Omega Mark V has a very sophisticated tube protection circuitry, designed to protect against excessive plate current, screen grid current, screen grid voltage, bias voltage, overdrive, etc. In case of any fault, the amplifier goes automatically into By-pass mode. A 25 ohm, 50 watt resistor in the B+ circuit and a MOV in the screen circuit further protects the tube and the power supply from a possible tube internal flash-over.

Cooling
A lot of attention was given to the design of The Omega Mark V cooling system. A pressurized forced air cooling is achieved with a rugged temperature controlled two speed 70 C.F.M. blower (turbine) which effectively cools all critical components of the amplifier. The volume of cooling air far exceeds manufacturers' specifications for all critical components. The blower is positioned in such a way that it prevents hot air being circulated through the system.

Duty Cycle
The The Omega Mark V amplifier will give its designed full output of 1500 watts when correctly tuned and loaded. An EBS (Electronic Bias Switch) is incorporated, and can be disabled if so required. The function of EBS Switch is well known. The amplifier is turned on ONLY AND ONLY IF RF drive is present. At all other times, the amplifier tube is virtually resting.

Automatic Drive Level Circuit(ALC)
The ALC circuit in The Omega Mark V amplifier is not of a conventional design like in all other amplifiers. The The Omega Mark V Circuit operates to prevent overdrive and keep the signal clean, while operating the The Omega Mark V. This means no RFI.
We use a separate circuit in the The Omega Mark V that senses any slight overdrive (50 micro-amps of grid current), warns you, and,will cut you off. The ALC circuit also produces a 0 - 10 V negative-going voltage, proportional to the grid current, but only when overdrive is present. The The Omega Mark V can be operated without connecting your transceiver to the ALC output of the Mark V and you are still guaranteed never to overdrive it. However, connecting the ALC will prevent the overdrive condition to occur in the first place, and you will not trip the amplifier.

Power Supply
The power supply of the The Omega Mark V is also unique. It contains a "SOFT START INRUSH PROTECTION", a top grade heavy duty Peter Dahl transformer, a full bridge rectifier and eight high voltage filter capacitors of 470 uF/500 volt rating. This gives a total capacitance in the high voltage section of 58uF and a voltage rating of 4000 volts. The soft start inrush protection circuit in the new Mark V amplifier is another unique design found in no other amplifier so far. It is the best soft start system available today. The phase controlled 20amp TRIAC will turn on the amplifier using a 3-second ramp function. The electrolytic capacitors are charged linearly over the 3 second period. This also affects all other circuit components in a similar manner. Stress in components, failure and "TRANSFORMER BONG" are non-existent in the The Omega Mark V. Yet another unique new design, exclusive to the The Omega Mark V amplifier is its screen grid power supply. Fully voltage regulated for +ve and -ve screen currents, combined with very effective current limiting, not only totally protects the tube(s), but also due to its wide dynamic range, it keeps the tube static operation parameters absolutely stable.

Additional Features

Digital Meter for Ip, Vp, Sg

18" X 17" X 7" (dxwxh)

Color Black with silver trim

Front bail to raise unit.

*** above specs are from design calculations and are not guaranteed final units will be available November - December 2005. ***