EB63A 140W HF Amplifier Complete Kit

EB63A 140W HF AMP COMPONENT SET

The EB63 amplifier has an output of 140 watts (PEP) over a frequency range of 2-30MHz.  The amplifier uses two MRF454 transistors which are specified at 80 watts power output with 5 watts of input drive. The amplifier will accept Single Side Band (SSB) or Amplititude Modulation (AM) without external switching.  A carrier operated relaly circuit (COR) is on the same layout to make this an easy amplifier to add to any suitable radio with an RF output of 1-5 watts.

Specifications:

Frequency Range     2-30 MHz

RF Input Power        1-5 watts

RF Output Power     140 watts

Input Impedance      50 ohm

Output Impedance   50 ohm

DC Input Voltage     13.6 Vdc

DC Input Current     22 amps (typical)

The Component Set includes:

1 ea.   Discrete Capacitor Set        

1 ea.   Resistor Set

1 ea.   Semiconductor Set             

1 ea.   Transformer Set

1 ea.   RF Relay                             

1 ea.   Printed Circuit Board

1 ea.   Matched Transistor Pair MRF454MP

Downloads:

EB63A Construction Hints

Original EB63 Engineering Bulletin

MRF454 Data Sheet

Compatible Active RF Devices: Engineered for MRF454 operating at 13.6V DC across 2-30 MHz (140W output).

Recommended Thermal Management: Pair this module with our Model 55HS / 99HS machined heatsink assembly for reliable continuous duty-cycle dissipation.

Spectral Purity & Harmonic Filtering: For amateur radio and commercial broadcast compliance, follow the amplifier output with an appropriate 50-ohm low-pass harmonic filter (such as our FL1 series for HF).

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