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Detector 2 Stage Amplifier DY-12

Detector 2 Stage Amplifier DY-12; Acme Apparatus Co.; (ID = 951558) mod-past25
Detector 2 Stage Amplifier DY-12; Acme Apparatus Co.; (ID = 950700) mod-past25 Detector 2 Stage Amplifier DY-12; Acme Apparatus Co.; (ID = 951557) mod-past25
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Detector 2 Stage Amplifier DY-12; Acme Apparatus Co.; (ID = 950700) mod-past25
Acme Apparatus Co.;: Detector 2 Stage Amplifier DY-12 [mod-past25] ID = 950700 400x300
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For model Detector 2 Stage Amplifier DY-12, Acme Apparatus Co.; Cambridge (MA)
Country:  United States of America (USA)
Manufacturer / Brand:  Acme Apparatus Co.; Cambridge (MA)
Year: 1922 ? Category: Radio module post 1925 (not a part, not a key)
Valves / Tubes 3: UV200 UV201 UV201
Main principle Detector with Vacuum Tube (Valve), no tuner; 2 AF stage(s)
Power type and voltage Storage and/or dry batteries / 6 & 22.5 & 45 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Model: Detector 2 Stage Amplifier DY-12 - Acme Apparatus Co.; Cambridge
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 12.5 x 10.5 x 9.125 inch / 318 x 267 x 232 mm
Notes ACME Detector and Two-Stage Amplifier Consists of Audion detector to which is added two stages of audio frequency amplification. The circuit used is one of the best and insures maximum amplification without distortion and without objectionable noises and howling. Sockets mounted on bakelite base: positive spring connections. Filament controlled by durable, positive acting rheostats. Acme Audio Frequency Transformers are used. Ample space inside the cabinet for the "B" battery. All connections are from the rear. Eight binding posts mounted on bakelite strip provide connections for input, "A" and "B" batteries and output. Rheostat controlled by genuine bakelite knobs with corrugated edges for secure finger grip. Amplifier jacks are filament controlled to insure maximum economy in the use of the "A" battery current , as current is only applied when plug is inserted in jack.
Net weight (2.2 lb = 1 kg) 12 lb 0 oz (12 lb) / 5.448 kg
Price in first year of sale 41.00 $
Literature/Schematics (4) Montgomery Ward 1922 Radio Catalog, p.8

Model page created by Joseph Woychowski. See "Data change" for further contributors.

All listed radios etc. from Acme Apparatus Co.; Cambridge (MA)
Here you find 19 models, 18 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.