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All Transistor 225

All Transistor 225; Philips Australia (ID = 1631331) Radio
 
All Transistor 225; Philips Australia (ID = 1631332) Radio
 
All Transistor 225; Philips Australia (ID = 1631336) Radio
 
All Transistor 225; Philips Australia (ID = 1631340) Radio
All Transistor 225; Philips Australia (ID = 1630852) Radio All Transistor 225; Philips Australia (ID = 1630853) Radio
All Transistor 225; Philips Australia (ID = 1630854) Radio All Transistor 225; Philips Australia (ID = 1630855) Radio
All Transistor 225; Philips Australia (ID = 1630856) Radio All Transistor 225; Philips Australia (ID = 1630857) Radio
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All Transistor 225; Philips Australia (ID = 1630852) Radio
Philips Australia: All Transistor 225 [Radio] ID = 1630852 900x585
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For model All Transistor 225, Philips Australia:
Main Photo. The cabinet responded to a good polish.
 
Country:  Australia
Manufacturer / Brand:  Philips Australia
Year: 1959/1960 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 7: OC44 OC45 OC45 OC71 OC75 OC72 OC72 OA95
Main principle Super-Heterodyne (Super in general); ZF/IF 455 kHz
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Dry Batteries / AA: 4 x 1.5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.75 inch = 7 cm
Power out
from Radiomuseum.org Model: All Transistor 225 - Philips Australia
Material Modern plastics (no Bakelite or Catalin)
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Dimensions (WHD) 6.25 x 3.125 x 1.375 inch / 159 x 79 x 35 mm
Notes

Philips Model 225 All Transistor Personal Portable

Packed with good features - this mighty midget gives full sized performance at a tiny cost. Weighs only 18 oz. complete with its penlite (AA) batteries (weight stated is without batteries). The small lustrous plastic case contains a powerful receiver with 7 transistors, plus a germanium diode, ferroxcube rod aerial, and imported high efficiency 2" speaker.

The portable includes a socket to fit optional earphone. Speaker is automatically switched off for "private listening".

Available in three modern colours - red, burgundy or charcoal.

This is the second Australian Transistor Radio from Philips and pre-dates the (now more common) 199, 199A and 199C. The release date of December 1959 is from the manufacturers Service Data (Page 4). The tuning range of 517 -- 1622 kHz is quite large and extends beyond the modern range. The radio is unusual in that there is no Printed Circuit Board but rather the circuit board is punched and component leads passed through and point to point wiring finished on what would normally be called the "Copper" side of the board. The choice of the OC75 for the 2nd Audio Preamplifier shows a difference from the usual transistor selection of the period and the use of OC44/OC45s in the RF section dates it before the OC170/OC169s used in the 199C. The Tuning Gang is not the sub-miniture plastic or mica insulated type but rather uses air as the dielectic element. Initially the radio was available in Red, Burgundy and Charcoal. The data sheet lists the speaker as "2 Inches" but at least one examples has a 70 mm (2.75 inch) speaker. The speaker mounts on the circuit board and has a foam gasket between it and the front grill.

Compare with the European models L1X75T or L1D90T (Fanette).

Net weight (2.2 lb = 1 kg) 0.4 kg / 0 lb 14.1 oz (0.881 lb)
Price in first year of sale 32.55 AUS £
Literature/Schematics (1) - - Manufacturers Literature (Philips Radioplayer Service Data, December 1959. (Also at KevinChant.com))
Literature/Schematics (2) J.R. Publications Transistor Radio Service Handbook (Supplement to Vol. 1, 1960.)
Literature/Schematics (3) J.R. Publications Transistor Radio Service Handbook (A Series Handbook, Page P4.)
Literature/Schematics (4) Mingay's Radio Electrical Weekly Price Service (REWPS) (Feb 1960 & Aug 1960.)

Model page created by Brian Wilson. See "Data change" for further contributors.



All listed radios etc. from Philips Australia
Here you find 814 models, 528 with images and 343 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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