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Please read this manual carefully before operating the equipment!
The Linear Amplifier is easy to use, and damages can be avoided by following the
instructions stated below. Incorrect use may cause the loss of warranty.
The Linear Amplifier is produced by M+E Mechanics & Electronics Inc.
During the design of the ME series , the main point was to construct Linear Amplifiers for HF, VHF,
and UHF amateur bands with similar mechanical measures and appearance ,using ceramic valves
easily available on the market.
The ME 2500and 3000-V utilises the advantage of the valve GU84B and GU78B, and considering the
power output and price, is a worthy competitor of similar equipment on the market.
The Amplifiers are protected by modern circuits,- specially designed and used
company,- providing a very high level of protection. With their low input power and high efficiency
they fulfil the requirement of an improved amateur station.
To use the Amplifier with satisfaction and utilising all it's advantages , please read the following
general instructions carefully:
1.1 Do not use higher driving power as given in the instruction manual. During SSB transmission the
'MIC GAIN' control of the TCVR is not fit for the TCVR is regularly activating the protection of the
Linear.
In case of lately designed equipment the output power of the TCVR is control of the radio.
1.2 The SWR protection of the Linear is inactive during STBY mode.
In case the VSWR > 1:2 in QRO mode, the protection is active.
1.3 The required power supply input is 230V 50/60 Hz or 400V 50/60 Hz between two phase
according to the EU standard. Verify that the rating of the line fuses located in the rear panel of
power supply in fuse holders is suitable for the AC line voltage you will be using. The fuse
should be the glass cartridge slo-blow type. The rating should be 25 Ampere by 230V AC, 16
Ampere by 400 V AC.
1.4 The Amplifier is constructed with a forced air cooling. Free air movement has to be provided and
considered during positioning.
Do not operate the Amplifier in excessively warm locations or near heating vents or radiators.
Be sure air can circulate freely around and through the Amplifier cabinet, and can provide an
unobstructed air inlet for the internal cooling fan. Do not place any books, magazines, manuals,
or equipment that will impede the free flow of air near the sides and the hot air exhaust holes
located on the top of the cabinet. The internal fan allows an air flow of approximately
200m
/hours. The exhaust air becomes quite warm at high power levels. Do not position any
3
heat-sensitive objects in the exhaust airflow path.
ATTENTION!
1.0 G E N E R A L O V E R W I E W
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