DXing.com

Favorite Tube-Type Shortwave Receivers


Home

Up Front

Newsroom

Editorial

E-Letters

Features

Glenn Hauser's SW/DX Report

Glenn Hauser's Continent of Media

Don Schimmel's Radio Intrigue

Joe Carr's Tech Notes

Radio Basics

Frequency vs. Wavelength

Modes and Modulation

Call Sign Prefixes

UTC/GMT Conversion

Radio Terms

Shortwave Radio

Introduction to Shortwave Listening

Tuning 150 kHz to 30 MHz

Selecting a Shortwave Radio

Reporting and QSLs

Receiver Reference

Modern Shortwave Receiver Survey

Favorite Tube-Type Shortwave Receivers

Scanner Monitoring

Introducing the "Action Bands"

The World Above 30 MHz

Selecting a Scanner

National Scanner Frequency Guide

Other Radio Hobbies

Ham Radio

AM Band DXing

Longwave DXing

Clandestine Radio

Pirate Radio

Numbers Stations

TV/FM DXing

Radio Links

Shortwave Listening

Radio Clubs

International Broadcasters

Scanner Listening

Ham Radio

Web-Controlled Radios

Miscellaneous

Top of Page

Eddystone 830/7

830/7
General Coverage Communications Receiver
Made In: England 1969-1973 Voltages: 110/125 200/250 VAC
Coverage: 300 - 30000 kHz. Readout: Analog Lin.
Modes: AM/LSB/USB/CW Selectivity: 6/3/1.3 kHz -6dB.
Circuit: Double Conversion Superheterodyne. 15 Tubes plus Semiconductors. Physical: 16.75x8.75x15" 49 Lbs 426x222x381 mm 22.2 Kg
Circuit Complement: 6ES8 RF Amp, 6AK5 1st Mixer, 6AJ8 2nd Mixer/2nd Osc Iso. Amp, 6C4 2nd Local Osc, 6BA6 1st 100 kHz IF Amp, 6BA6 2nd 100 kHz IF Amp, 6AL5 AM NL, 6AU6 Cathode Follow, 6AT6 AM Detector AGC Rectifier, 6AQ5 Audio Out, 6AU6 Calibrator, 6U8 1st Local Osc, 6BE6 CW/SSB Detector and (2) 0A2 HT Stabilizer plus 4 diodes. Single conversion below 1.5 MHz.
Features: " Head. Jack S-Meter Rack Handles Calibrator 100 kHz RF Gain BFO Mute Line 8 Crystal Positions Dial Light AGC ANL 140:1 Reduction Speaker Out IF Output Line Out 600 Ohm Line Out 2000 Ohm
Accessories: Rack Mount, EP20 Panoramic Adapter
New Price: 309 Used Price: 150-240
Comments: Ranges: .30-.5, .5-.85, .58-1.5, 1.5-2.5, 2.5-4, 4-6.8, 6.8-11, 11-18 and 18-30 MHz. Replaces the 830/2. Dimensions shown are for cabinet version. A great receiver.
Variants: Model 830/7/RM is rack mount version. Model 830/8 is Dipl.Wire Service version. Model 830/9 has synthesized osc. input. Model 830/10 is the Canadian version. Model 830/11 was sold under the STC label. Model 830/12 is Hagenuk E 81.

Eddystone 840A

840A
General Coverage Communications Receiver
Made In: England 1955-1961 Voltages: 110/125 200/250 VAC
Coverage: 480 - 30600 kHz Readout: Analog
Modes: AM/CW/SSB Selectivity: 20 kHz -30dB.
Circuit: Single Conversion Superheterodyne. 7 Tubes. Physical: 16.75x8.75x10" 30 Lbs 425x222x254mm 13.6 kg
Circuit Complement: UAF42 RF Amp, UCH42 Frequency Changer, UAF42 IF Amp/AGC, UAF42 AM Detector/Audio Amp, UL41 Audio Output, UAF42 BFO and UY41 Rectifier.
Features: " Head. Jack Standby Rack Handles Logging Scale RF Gain Speaker Tone BFO 3 kHz Mute AGC Phono Input 140:1 Ratio Tuning NL
Accessories: 688 Speaker, 732 Mains Filter Unit, 774 Receiver Mounting Blocks
New Price: 49-58 Used Price: 50-75
Comments: The 840A has basically the same circuit as the 840, but in a very different cabinet. Ranges: .48-1.14, 1.4-3.8, 3.7-10.6 and 10.5-30.6 MHz. The dial frequency readout is not too accurate. However, the logging scale allows you to quickly and accurately return to a previously heard frequency. Audio quality is good. Features an oyster gray hammer finish metal cabinet. The amateur bands are marked in blue and the broadcast bands in red.

Click here to return to the TABLE OF CONTENTS.

1999 by Universal Radio Research. All rights reserved.