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K105 Ch= RC-476

K105 Ch= RC-476; RCA RCA Victor Co. (ID = 980945) Radio
 
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 980946) Radio
 
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 980947) Radio
 
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 980948) Radio
 
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 980949) Radio
 
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 980950) Radio
 
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 60446) Radio
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 394544) Radio K105 Ch= RC-476; RCA RCA Victor Co. (ID = 394547) Radio
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 394545) Radio K105 Ch= RC-476; RCA RCA Victor Co. (ID = 394546) Radio
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 712634) Radio K105 Ch= RC-476; RCA RCA Victor Co. (ID = 2130183) Radio
K105 Ch= RC-476; RCA RCA Victor Co. (ID = 2130184) Radio
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K105 Ch= RC-476; RCA RCA Victor Co. (ID = 394544) Radio
RCA RCA Victor Co.: K105 Ch= RC-476 [Radio] ID = 394544 545x700
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For model K105 Ch= RC-476, RCA (RCA Victor Co. Inc.); New York (NY):
Ebay Nr. 310002297691 Bild bearbeitet.
 
Country:  United States of America (USA)
Manufacturer / Brand:  RCA (RCA Victor Co. Inc.); New York (NY)
alternative name
 
RCA Manufacturing || Victor Talking Machine
Year: 1939 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 10: 6SK7 6SA7 6SK7 6H6 6U5 or 6G5 6SF5 6SF5 6F6G 6F6G 5U4G
Main principle Superhet with RF-stage; ZF/IF 455 kHz
Wave bands Broadcast, Short Wave(s) and Police.
Details
Power type and voltage Alternating Current supply (AC)
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm
Power out 10 W (unknown quality)
from Radiomuseum.org Model: K105 Ch= RC-476 - RCA RCA Victor Co. Inc.; New
Material Wooden case
Shape Console with Push Buttons.
Dimensions (WHD) 30.5 x 43 x 14.5 inch / 775 x 1092 x 368 mm
Notes This model has 3 power supply ratings:
Rating A...105-125V, 50-60 Cycles
Rating B...105-125V, 25-60 Cycles
Rating C...100-130;140-160;195-250V, 40-60 Cycles
Net weight (2.2 lb = 1 kg) 83 lb (83 lb 0 oz) / 37.682 kg
Price in first year of sale 99.95 USD
External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios 4. Edition
Circuit diagram reference Rider's Perpetual, Volume 11 = ca. 1940 and before
Mentioned in Guide to Old Radios
Literature/Schematics (1) Pre-War Consoles
Literature/Schematics (2) RCA Victor Service Notes "Red Book" Series


All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)
Here you find 4928 models, 2897 with images and 4002 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
RCA RCA Victor Co.: K105 Ch= RC-476
Threads: 1 | Posts: 3
Hits: 855     Replies: 2
rca: wattage of bias resistors in RCA K105
Gary Streeter
15.Jun.17
  1

Does anyone have information or ideas or recommendations for what watt the biasing resistors in this RCA K105 might typically use?  The schematic shows the ohms but not the watts.  Can anyone help?  Thank you.

Gary

Paul Reid
19.Jun.17
  2

P = V^2/R

Voltages can be squinted from rca_k105_sch.pdf (not rca_k105_sch1.pdf)

Bias voltage not there(?) but can be guessed from book data.

R19 3,000r 153V: 7.8W (use 15W or 20W)

R20 2,500r 92V: 3.4W (use 7W or 10W)

R21 10r 1.5V: 0.225W (use 1/2W)

R22 170r 24.5V: 3.6W (use 7W or 10W)

Gary Streeter
21.Jun.17
  3

Thank you!  This will be helpful.  The schematic we have does not show any values for wattage, and it's been guesswork!

 
RCA RCA Victor Co.: K105 Ch= RC-476
End of forum contributions about this model

  
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