47-1230FM Radio-Phonograph
Philco, Philadelphia Stg. Batt. Co.; USA
- Country
- United States of America (USA)
- Manufacturer / Brand
- Philco, Philadelphia Stg. Batt. Co.; USA
- Year
- 1946/1947
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 50879
Philco 47-1230 seen from the front
SAMS Photofact
Philco 47-1230 front-top section
Top of the cabinet of a 47-1230
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 9
- Main principle
- Superheterodyne (common); ZF/IF 455/9100 kHz
- Tuned circuits
- 8 AM circuit(s) 9 FM circuit(s)
- Wave bands
- Broadcast, Short Wave plus FM or UHF.
- Details
- Record Player (perh.Changer)
- Power type and voltage
- Alternating Current supply (AC) / 105-120 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm
- Power out
- 10 W (unknown quality)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 47-1230FM Radio-Phonograph - Philco, Philadelphia Stg. Batt
- Shape
- Console with Push Buttons.
- Dimensions (WHD)
- 28 x 38 x 14.25 inch / 711 x 965 x 362 mm
- Notes
- The "Chicago Daily Tribune" August 17, 1947 contains an ad from Philco for the following models: 1226, 1230FM, 1227FM, 1201, 360 and 1256. It is a typical add for selling out the 1226, 1230FM and 1227FM with a trade in of 30 $. This model is advertised as 1230FM with a price of $ 269.50 less trade-in. Later Philco will offer the "1948 line" in fact 1947/48. This model uses model D-10A Automatic Record Changer.
- External source of data
- Ernst Erb
- Source of data
- Collector's Guide to Antique Radios 4. Edition
- Circuit diagram reference
- Rider's Perpetual, Volume 19 = 1949 and before
- Literature/Schematics (1)
- Philco Home Radio Yearbook 1946-1947
- Literature/Schematics (2)
- - - Manufacturers Literature (Philco Service Manual - Philco Radio-Phonograph Model 47-1230)
- Other Models
-
Here you find 4072 models, 2221 with images and 3721 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA
Collections
The model 47-1230FM is part of the collections of the following members.
Forum contributions about this model: Philco, Philadelphia: 47-1230FM Radio-Phonograph
Threads: 1 | Posts: 2
Greetings.
While restoring my own Philco 47-1230, I noticed that the original Philco Service Manual had errors in its part placement drawing, meant to help locating probing location for diagnostic. I was relying on this for capacitor replacement and have bad surprises...
Riders volume 19 used an exact copy of the service manuals.
I heard there are many errors in the vintage documents, to prevent problems, nothing like pointing them out.
Here's C419 how it is (erroneously) drawn in the diagnostic pages for section 4:
The pins at wich the C419 are connected are wrong. They aren't what I saw in my 47-1230, and they aren't what I see in the diagrams. The C419 is connected from GND to R410 (and C102a), the 4th pin from the bottom of the lug strip, not L404, 3rd pin from the top of the lug strip. Note that the 3rd top and 3rd bottom are bolted to the chassis (GND) so if it were like in the drawing, the capacitor would be between two GNDs.
here's how I think it should be drawn
Attachments
- Error in the parts placement diagram of 47-1230 service manual (52 KB)
- original 47-1230 schematics (25 KB)
- Inside the chassis of my 47-1230 prior to alterations (188 KB)
- C419 in my 47-1230 with comments (190 KB)
- How I believe it should be written. (52 KB)
- thumbnail for error image (6 KB)
- thumbnail for schematics (7 KB)
- thumbnail for my 47-1230 (no comments) (14 KB)
- thumbnail for my 47-1230 (comments) (14 KB)
- thumbnail for my correction (6 KB)
Yan Lauzon, 11.Jul.11