The FL-2100B Linear Amplifier is designed to match the FT-101B/277EB transceivers in appearance and drive requirements to run high power input covering the ham bands 80 through 10 meters.
The FL-2100B uses a pair of 572B/T160 transmitting triodes in a class B grounded grid circuit configuration. The tubes are forced-air cooled by two very quiet high speed internal fans.
Automatic Level Control circuit controls the exciter gain to allow the highest average power without distortion caused by peak clipping. Change-over circuit biases the
tubes to cut-off, eliminating unwanted heat and diode noise generation when receiving.
An internal changeover relay feeds the antenna to the exciter for barefoot operation when the FL-210OB is turned off or is on standby condition. A built-in SWR bridge measures SWR on by barefoot and linear operations.
solid state power supply requires no warm-up period and provides excellent voltage regulation.
DO NOT TURN ON THE FL-2100B WITH THE TOP SHIELD COVER REMOVED. THE HIGH VOLTAGE SAFETY LOCK SHORTS OUT THE HIGH VOLTAGE AND WILL DAMAGE THE POWER SUPPLY CIRCUIT.
Circuit Grounded Grid Class B
Frequency Coverage Ham bands 80 through 10 meters
Plate Input 1200 Watts PER, 1000 Watts CW and 600 Watts AM
Plate voltage 2400 Volts DC
Drive Requirement 100 Watts PER
Input impedance 50 ohms, unbalanced
Output impedance 50-75 ohms, unbalanced
Third Order Distortion 30 db or better at 1000 Watts PEP
Tube Complement 2 X 572B/ T 160
Cooling Forced-air cooling
Power Requirements AC 100, 110, 117 Volts 50/6OHz 18 Amps
AC 200, 220, 234 Volts 50/ 6OHz 9 Amps
Dimensions 13 ½ Wide, 6 " High, 11 1/2 Deep
Weight 41 lbs
FRONT PANEL CONTROLS
POWER-OFF Rocker switch turns power on.
OPER-STBY Rooker switch applies Bias when standby and relay is disengaged.
SWR-IR Rocker switch selects either SWR or plate current meter reading.
F-R Rocker switch selects either forward or reflected SWR bridge reading.
SENS Potentiometer adjusts meter sensitivity for SWR measurement.
PLATE Plate capacitor in tank circuit.
The FL-210OB has been designed incorporating a safety lock to prevent dangerous high voltage shock. However, extreme care is recommended when servicing inside the cabinet.
Carefully remove FL-210OB from the packing carton and examine them for any visible shipping damage, check the control knobs and switches for complate freedom of action.
In general, care should be taken to insure that enough space is allowed around the
amplifier cabinet to permit adequate air circulation within the linear amplifier. Do not cover the top of the FL-2100B with books, papers or other equipment. Do not insert anything under the bottom of the FL-210OB or overheating may result.
The FL-2100B has a built-in power supply which can be
operated from either 100, 117, or 220 volts AC 50-60 Hz.
Be sure that the voltage market on the rear of the FL-2100B agrees with the local AC supply voltage.
PERMNENT DAMAGE WILL RESULT IF IMPROPER AC SUPPLY VOLTAGE
IS APPLIED TO THE FL-2100B
It is recommended that the FL-2100B is operated from its own 220 volt or 10 amp or greater circuit. If 117 or 100 volts is all that is available, it should be fused for 20 Amps, circuit conductors should be larger than # 10 and no other equipment should be operated from this circuit. DO NOT, under any circumstances, operate the FL-2100B from a 117 volt lighting circuit, as the
circuit conductor are not large enough to carry this load.
The following diagram shows the wiring connections for 117 and 220 volt operation. Connections must be made as shown or serious damage may result.