UC-103
Sharp; Osaka
- Country
- Japan
- Manufacturer / Brand
- Sharp; Osaka
- Year
- 1955 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 137274
-
- alternative name: Hayakawa Electric Co.Ltd.
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz
- Wave bands
- Broadcast and Short Wave (SW).
- Power type and voltage
- Alternating Current supply (AC) / 110; 220 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Power out
- 1 W (unknown quality)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: UC-103 - Sharp; Osaka
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 360 x 140 x 150 mm / 14.2 x 5.5 x 5.9 inch
- Notes
-
Chassis connected to mains; autotransformer.
Cabinet colors include green and walnut brown.
- Net weight (2.2 lb = 1 kg)
- 2.4 kg / 5 lb 4.6 oz (5.286 lb)
- Author
- Model page created by Peter Spies. See "Data change" for further contributors.
- Other Models
-
Here you find 1328 models, 1200 with images and 515 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sharp; Osaka
Collections
The model is part of the collections of the following members.
Forum contributions about this model: Sharp; Osaka: UC-103
Threads: 3 | Posts: 6
I has been lucky enough to find a friend that have same model with original schematics still glued inside.
He has taken a picture of original schematic and sended it to me.
I compared it with my schematic redrawed manually from SHARP model UW-122 to match the UC-103 and I found both are identical, only in my schematics I identified audio output tube as 30C5 instead the correct 35C5, also added one line from the word earphone to the switch earphone-speaker, and added fuse value of 0,5A.
The second schematic uploaded are the most accurate, use it.
Regards.
Vicente Moncholi-Cebrian, 21.Nov.23
After some models readings on the radio museum list I found a very similar radio from SHARP, the model UW-122.
It is almost identical with some differences on the mains and some components:
- Cathode resistance of 120ohms instead of 150ohms on the UC-103
- Output audio tube 30A5 instead of 30C5 on the UC-103
Changes are documented and I have drawn and upload a new schematics for the UC-103 in the model list.
Hope this help in the future.
Regards.
Vicente Moncholi-Cebrian, 19.Nov.23
I recently won an auction and now own this radio Sharp UC-103.
In the Radiomuseum list appear this radio but not schematics are present, with only one owner, Peter Spies.
In one of the photos I can see some documents glued to inside upper cabinet, so, I beg to Peter Spies if he can take a photo of those documents, because one of them is the schematics.
Y become veru grateful to Peter.
Thanks and regards.
Vicente Moncholi - Sevilla - Spain
Vicente Moncholi-Cebrian, 16.Nov.23