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ACEC stereo radio Type 5821

ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 2237879) Radio
 
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 2237880) Radio
 
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 2237881) Radio
 
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 2237882) Radio
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 52272) Radio ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 52274) Radio
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 52275) Radio ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875021) Radio
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875022) Radio ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875023) Radio
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875024) Radio ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875025) Radio
ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875026) Radio ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 1875028) Radio
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ACEC stereo radio Type 5821; ACEC, Ateliers de (ID = 52272) Radio
ACEC, Ateliers de: ACEC stereo radio Type 5821 [Radio] ID = 52272 729x416
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For model ACEC stereo radio Type 5821, ACEC, Ateliers de Constructions Électriques de Charleroi; Charleroi
 
Country:  Belgium
Manufacturer / Brand:  ACEC, Ateliers de Constructions Électriques de Charleroi; Charleroi
Year: 1965 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 10: ECC85 ECH81 EF89 EBF89 EM80 EAA91 ECC83 EL84 EL84 EZ81
Main principle Superheterodyne (common); ZF/IF 452 kHz; 3 AF stage(s)
Tuned circuits 6 AM circuit(s)     9 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Details
Power type and voltage Alternating Current supply (AC) / 110-245 Volt
Loudspeaker 2 Loudspeakers / Ø 16 cm = 6.3 inch
Power out 2 W (unknown quality)
from Radiomuseum.org Model: ACEC stereo radio Type 5821 - ACEC, Ateliers de
Material Wooden case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 630 x 370 x 240 mm / 24.8 x 14.6 x 9.4 inch
Notes 2 x HP AD3700AM 800 Ohm. Fabricant: Atelier de Construction d'Electricité de Charleroi(ACEC).
Net weight (2.2 lb = 1 kg) 13.4 kg / 29 lb 8.2 oz (29.515 lb)
External source of data WDG

Model page created by Willy De Grande. See "Data change" for further contributors.



All listed radios etc. from ACEC, Ateliers de Constructions Électriques de Charleroi; Charleroi
Here you find 233 models, 225 with images and 38 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
ACEC, Ateliers de: ACEC stereo radio Type 5821
Threads: 1 | Posts: 1
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acec: about the ACEC5821 Schematic
Yves Barbin
11.Sep.18
  1

I found two probable lacks in the schematic available on the Radiomuseum site for the ACEC 5821

1/ On the first page, on the FM tuner, for the second triode, the oscillator,

the primary coil of the tuned coupling transformer fed by the anode through the 8.2pf needs to be grounded

at the other terminal

otherwise nothing is feeding the feed back circuit and there will be no oscillation, at least no tuned oscillation.

2/ On the second page, in the AGC loop, I think that the low pass filtering capacitor is missing.

The two grids, the one of the heptode ECH81 and the one of the pentode EF89 received the AGC without low pass (which is normally smoothing the gain command). This lack may also introduce a AC coupling beetween the two stages.

There may be some bad consequences.

So according with the 1.8Mohms, a capacitor of 47nF or 0.1uF should be connected to the ground.

This is a very common, very convenient  and  safe practice

What do you think?

Best regards

Yves

 

 
ACEC, Ateliers de: ACEC stereo radio Type 5821
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