|Year: 1939–1945||Category: Amateur-Receiver (amateur bands, may include broadcast bands)|
|Valves / Tubes||11: 6S7 6K8 6S7 6S7 6F6 6H6 6H6 6SF5 6V6 6J7 5Z4G VR150|
|Main principle||Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)|
|Wave bands||Broadcast plus more than 2 Short Wave bands.|
|Power type and voltage||Alternating Current supply (AC) / 115 Volt|
|Loudspeaker||- This model requires external speaker(s).|
|Power out||4 W (unknown quality)|
|from Radiomuseum.org||Model: HQ-120-X - Hammarlund Mfg. Co. Inc.; New|
|Shape||Tablemodel, with any shape - general.|
|Dimensions (WHD)||435 x 255 x 311 mm / 17.1 x 10 x 12.2 inch|
|Notes||+ tube 76 for Cristal Model.
Riders mentions late model with tubes 6Z7G and 6F8G (instead of 6H6 in Det./AVC and NL).
AM/CW. Six ranges 540 kHz-31 MHz, bandspread for 80-10 meter HAM-bands;
Switchable Xtal-IF-filter provides bandwith selection in five steps.
Black or gray front-panel. Requires SC-10 speaker (10" perm.-dyn. in matching metal cabinet).
|Price in first year of sale||138.00 $|
|External source of data||Ernst Erb|
|Source of data||Communications Receivers|
|Circuit diagram reference||Rider's Perpetual, Volume 10 = 1939 and before|
|Mentioned in||Shortwave Receivers - Past & Present (3rd ed.) (The Radio Amateurs Handbook, ARRL, 1941)|
All listed radios etc. from Hammarlund Mfg. Co. Inc.; New York, NY
Here you find 136 models, 80 with images and 56 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.