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RCA AR88LF

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Desktop Shortwave receiver

These hugely heavy and incredibly sensitive sets were, rumour has it, produced for Lend-Lease agreements with England for service in World War II. They are quite common in the UK but scarce in the US. There appear to be two 'flavours' of AR88 - the 'D' version has a frequency coverage as per above whilst the 'LF' version goes down all the way to 75kHz.

The receiver consists of two RF stages, a mixer, local oscillator, three IF stages, a detector, noise limiter, BFO, AF amplifier, output stage and power supply system. The IF amplifiers incorporate variable selectivity and a crystal filter. The sets are normally housed in steel cases but can be rack mounted.

The receivers are designed for coupling to a 200 ohm transmission line, except on low frequency general broadcast bands. For these and general use a single wire 25 to 50 ft. long can be used.

Specifications
Type
Desktop Amateur HF Receiver 
Frequency range RX
73-550 kHz / 1.48-30.5 MHz in six bands 
TX
Frequency stability
Tuning steps
Filters
Receiver
Modulations
AM / CW 
Sensitivity
For 20dB S/N: 8µV at 1MHz, 4.5µV at 4.3MHz, 7µV at 16MHz, 7µV at 28MHz 
Selectivity
5 Settings: -3dB bandwidths 15kHz, 9kHz, 3.4kHz, 1.6kHz, 400Hz 
Receiver system
Single conversion, 14 valves 
IF-frequencies
735 kHz 
Image rejection
120dB at 1MHz
60dB at 16MHz
46dB at 28MHz 
Audio output
2.5 W (2.5 ohm external speaker or 600 ohm headphone) 
Transmitter
Modulations
RF-output
Connections
Antenna
Impedance
200Ω 
Electrical
Power requirements
100-260 VAC mains or 6V DC vibrator pack 
Current drain RX
TX
Physical
Dimensions (w×h×d)
488 × 280 × 488 mm (19.21 × 11.02 × 19.21 in)  
Weight
45 kg (99.3 lbs)  
Form factor
Desktop 
Manufactured
Between 1941 and 1945 in USA 
Other features
Memories
Usage
Amateur / Ham radio operators 
Manufacturer
RCA 
Model
AR88LF
Features
Optional S-meter 
Manuals, Diagrams and Brochures
 
RCA AR-88LF Instructions
RCA AR-88LF Schematic diagram
 
 
 
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