High Performance FM Radio Model Twenty-One/II (21/2)

KLH R&D Co.; Cambridge (MA)

Data

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Country
United States of America (USA)

Manufacturer / Brand
KLH R&D Co.; Cambridge (MA)

Year
1972 ?

Category
Broadcast Receiver - or past WW2 Tuner

Radiomuseum.org ID
133734

Picture
Schematics

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 620801) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (3)

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 620802) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (3)

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 2354977) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (1)

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 2354980) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (1)

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 2354982) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (1)

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 476373) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (2)

High Performance FM Radio Model Twenty-One/II ; KLH R&D Co.; (ID = 2529500) Radio — KLH R&D Co.; High Performance FM Radio Model Twenty-One/II (1)

Click on the schematic thumbnail to request the schematic as a free document.

Technical Specifications

Number of Transistors
Semiconductors present.

Semiconductors

Main principle
Superheterodyne (common)

Wave bands
FM Broadcast Band Only

Power type and voltage
Alternating Current supply (AC) / 117 Volt

Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

Material
Wooden case

from Radiomuseum.org
Model: High Performance FM Radio Model Twenty-One/II - KLH R&D Co.; Cambridge MA

Shape
Tablemodel without push buttons, Mantel/Midget/Compact up to 14

Dimensions (WHD)
12 x 7 x 6 inch / 305 x 178 x 152 mm

Notes
KLH Twenty-One 21/II;
Black speaker covering.

Source of data
-- Collector info (Sammler)

Author
Model page created by a member from A. See "Data change" for further contributors.

Other Models
Here you find 22 models, 20 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from KLH R&D Co.; Cambridge (MA)

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The model High Performance FM Radio is part of the collections of the following members.

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