R.L.DRAKE 1-A Instruction Book

INSTRUCTION BOOK
MODEL I-A
SIDEBAND RECEIVER
Lr (eae
R. L. DRAKE COMPANY MIAMISBURG, OHIO
I. GENERAL
A. GENERAL DESCRIPTION
The R. L. Drake Model 1-A is an amateur-band receiver designed for
single sideband reception. No compromise has been made in its excellent
sideband performance in an effort to receive other types of transmission,
The important requirements for good sideband reception which are fulfilled
by the 1-A are frequency stability, proper AVC action, continuous sideband
tuning, correct passband and aydio response characteristics, distortion-free
product detection, reasonable tuning rate, and instantaneous muting and
recovery. With respect to these points and to simple, functional design,
this receiver sets new standards in sideband reception.
The receiver also works very well on CW due to the similarity between
the requirements for reception for CW and SSB. Almost every feature built
into the 1-A for SSB is also desirable for CW.
AM signals are treated just like SSB. The highly selective filter removes
all but one sideband; then detection is the same as for SSB. In many respects.
this type of AM reception is superior to that using envelope detection.
The outward appearance of the 1-A is modern, functional and worthy of its
well-engineered contents. The uniquely shaped cabinet is designed to occupy
a minimum of desk space. The receiver is made self-sufficient by including
an internal speaker.