400
SERIES INDUCTUNER
FOR
USE IN VERY HIGH FREQUENCY APPLICATIONS, MILITARY AND COMMERCIAL
The
Mallory 400 Series INDUCTUNER is a high Q variable inductor with
0.680 microhenries inductance change for six turns of the tuning
shaft. The minimum inductance is 0.025 micro henries. Frequency
ratios of 4 to 1 are easy to obtain with practical values of high
frequency trimming inductance. The 400 Series Inductuner may be
used up to frequencies of 300 mcs. Most of the characteristics necessary
for application of this Inductuner are shown in the electrical data
: _L versus rotation, distributed capacity versus rotation, Q factor
versus rotation, and a family of frequency versus rotation curves.
The
unit is available in one, two, three, or four ganged sections. The
Inductuner frame is constructed of 1/16 inch, electro-tin plated,
cold rolled steel. The tuning shaft is stainless steel, 1/4 inch
in diameter and extends 2 1/2 inches from mounting flange. Shorter
shaft lengths are available in 1/4 inch increments. The shaft is
supported by means of a brass sleeve bearing and is provided with
stops to allow approximately 6 turns of rotation. Stops to provide
less than 6 turns can be supplied. Shielding and dust protection
is provided by a removable aluminum cover secured by means of locknuts.
The Inductuner can be base or flange mounted.
MEETS
MIL REQUIREMENTS
All
materials, finishes, parts and processes will meet MIL-P-11268.
The Inductuner will meet the following requirements as tested
per MIL-STD-202:
Life:.....................................................................................50,000
cycles minimum
Shock:...........................................................................
50g’s for 11 milliseconds
Vibration:...........................................................................
0.06" max. excursion from 5 to 55 cps.
Temperature:...........................................................................-
55°C to +105°C
Humidity:...........................................................................
Withstand 95% max. R. H.
When
ordering specify shaft length and number of ganged sections required.
top