Linear Systems LSA-3

Object/Artifact

-

Radio Alpha

Image: 73, Jun 1963

Image: 73, Jun 1963

Name/Title

Linear Systems LSA-3

Description

500 Watt 80/40/20 Meter Linear Amplifier

Category

Amplifier, HF

Made/Created

Manufacturer

Linear Systems

Date made

1963

Dimensions

Height

4-1/2 in

Width

6-1/2 in

Depth

10 in

Weight

5-3/4 lb

Valuations

Value

$150.00

Notes

Less power supply

General Notes

Note

73, Jun 1963, p. 21. Features – DC Input – Single Tone - 500 Watts – Bandwidth – 3 db attenuation in excess of 300 kHz on all bands – Input – Untuned 50 Ohms Passive grid with built-in swamping – Output – Adjustable Pi to a 50 Ohm unbalanced line – Power Output – Single tone test ratings - A driving signal with an average power of 25 watts will produce from 315 to 350 watts of average power to a 50 Ohm resistive load, depending on frequency – Efficiency – The LSA-3 may be tuned up to an average input power of approximately 500 watts indicating an efficiency in excess of 60% All transfer relays are included for TR or independent operation of the exciter. A separate solid state power supply for either mobile or fixed station is a companion feature: AC-LSA-3/115 for 115V. AC Input DC-LSA-3/12 for 12 V. DC Input Votages required: 800 V at 650 mA Plate 270 V at 100 mA Screen 0-90 V Negative Bias 12.6 V Filament TUBE COMPLIMENT (4) 7984 compactron pentodes each with a 35 watt plate dissipation --- ### LSA-3 BROADBAND LINEAR AMPLIFIER from LINEAR SYSTEMS / ADCOM 3 BANDS: 80 - 40 - 20 meters | Item | Price | | --- | --- | | With AC or DC Power Supply | $249.50<br> | | LSA-3 Linear Amplifier without Supply | $150.00<br> | --- Order now from your favorite dealer LINEAR SYSTEMS INC. 605 UNIVERSITY AVENUE LOS GATOS, CALIFORNIA ADCOM JUNE 1963 21