EICO Electronic Instrument Co. Inc. - 722 - Oscillator
Hersteller:
Kein Bild verfügbar!
Vielleicht können sie für ein
EICO Electronic Instrument Co. Inc. 722 ?
Ein
Foto hochladen
?
Weitere Anleitungen und Fotos für ein
EICO Electronic Instrument Co. Inc. 722
können sie
hier hochladen.
Gerät:
722
Datum:
1962
Kategorie:
Gruppe:
Untergruppe:
Informationen
The Model 722 excels in every requirement for a truly
satisfactory VFO under the crowded conditions encountered
today in the Ham bands. It provides full coverage of the
five Ham bands from 80 to 10 meters in six ranges, the 10
meter band being covered in two ranges.
Basic design features include a low-heat silicon diode
doubler power supply, a buffer-multiplier output stage, a
very large and easy-reading slide rule dial, and a velvet
smooth and extremely reliable drive. Output is high enough
to drive any modern transmitter on all bands from 80 through
10 meters. A lever type spotting switch is provided on the
front panel.
High stability is achieved by carefully coordinated
electrical, mechanical, and thermal design. The oscillator
is an electron-coupled, series-tuned Clapp type,
incorporating a stable, slug-tuned coil and
temperature-compensating capacitors. Drift due to internal
heating of the tank circuit has been made negligible by the
choice of a high L to C ratio, which reduces the circulating
tank current to a very low value. The buffer-multiplier
stage performs as a "straight- throughTt buffer-amplifier on
80 meters, and a multiplier on all higher bands. It provides
excellent isolation between the output load and the
oscillator, as well as high output.
A VR tube eliminates any effect due to line voltage
variation. A rigid mechanical construction and the use of a
double bearing on the main tuning capacitor avoids
mechanical causes of frequency shift. Enclosure of the
frequency-determining elements of the oscillator in a
shielding compartment provides both heat isolation and
shielding from outside mechanical movements and body capacity.
Reparatur und Bedienungsanleitung
Dokumenttyp:
Reparatur und Bedienungsanleitung
Seitenanzahl:
33
Größe:
3,0 MB
Sprache:
Englisch
Revision:
Dokument-ID:
66371
Datum:
Qualität:
Gescanntes Dokument, alles ist lesbar.
Upload Datum:
18. Februar 2016
MD5:
66ef3fc7-4553-8c36-3346-d4cf58fd4496
Downloads:
407
Reparatur und Bedienungsanleitung
Dokumenttyp:
Reparatur und Bedienungsanleitung
Seitenanzahl:
16
Größe:
2,0 MB
Sprache:
Englisch
Revision:
Dokument-ID:
Datum:
Qualität:
Gescanntes Dokument, alles ist lesbar.
Upload Datum:
18. Februar 2016
MD5:
0b1bfbda-7f2e-dfdb-8fc1-a02ec48a8a87
Downloads:
441