KEITHS VINTAGE RACAL SITE ...

Radioaktiv - featuring: Eddystone - Classic British receivers (a history from 1898 - 1973) and Hubble-Bubble a personal web page ...

For radio enthusiasts interested in building and using the popular HBR tube receivers published in QST articles in the late 50s and 60s ALSO for folks wanting to repair those Heathkit SB-104(A), SB100, SB-101, SB-102, HW-101 Transceivers.

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 ...

AR88LF RECEIVER The AR88 is a general purpose communications receiver manufactured by RCA in the U.S.A between 1941 and 1945. They were made in large numbers for service use. Most were sent to the U.K. and Russia for the war effort. They came in 2 versions, the AR88D and the AR88LF (low frequency version). The R.A.F. designation was R1556A and R1556B for the LF version. They evolved into the ...

51J-4 Receiver THE COLLINS 51J-4 RECEIVER The Collins 51J-4 Receiver is designed for communication applications where stability and dial accuracy of the highest order are the prime requisites. Under normal operating conditions, the receiver operates in the range of 540 kc to 30.5 mc with a total setting error and drift of less than 1 kc at any frequency within its range. The receiver is designed ...

This site documents some of the details of rebuilding Collins R-390A receivers. Many pictures show details of a complete restoration, and a number of documents are available to help those who wish to undertake this rewarding task.

FR-50 the great Receiver (update Mar .10, 2000) FR-50 the great Receiver Back to the Yaesu List or the Yaesu Pict. FR-50 is an HF ham bands receiver suitable for the transceive operation with the SSB transmitter model FL-50. Both were released in 1966 by Yaesu Musen Co. This receiver is a double conversion superheterodyne in which the 1st local oscillator is not crystal controlled but LC ...

The Select-o-ject The Selectoject is a receiver adjunct that can be used as a sharp amplifier or as a single-frequency rejection filter. The frequency of operation may be set to any point in the audio range by turning a single knob. The degree of selectivity (or depth of the null) is continuously adjustable and is independent of tuning. In phone work, the rejection notch can be used to reduce or ...

RADIO RECEIVING SET HRO-600 HRO-600 Block Diagram HRO-600 FEATURES A Top Quality Receiving System At The Right Price. -A $10, 000 Value For $5, 600. -- More Performance Per Dollar Than Any Other World Class Receiver. The HRO-600 offers several varieties of search and fixed frequency tuning heads. All tuning heads are easily interchangeable on the front panel of any HRO-600 chassis. The HRO-600's ...