The G6 Chassis Design
The Philips G6 chassis made use of hybrid technology. The design employed 21 thermionic valves, 17 transistors and 44 other semiconductor devices. The initial Philips sets (pre-fixed G25) employed a Mullard 25inch (A63-11X 25 Colourscreen) shadow mask cathode ray tube (CRT). The design used a 6 push-button integrated tuner covering VHF and UHF bands. A tuning indicator was provided to assist with fine tuning of signals. An audio tone control was also provided. The receivers made use of a Mullard DL1 glass delay line.
The dual standard set could receive the following channels:
|Channels 1 to 3 Band IA||To either 405 or 625 line Standard.|
|Channels 3 to 5 Band I|
|Channels 6 to 13 Band III|
|Channels 21 to 68 Band IV and V|
G6 Panels (Click on images for a much larger detail)
The main chassis was mounted vertically (see Plate 1 below) at the rear of the cabinet and could be hinged backwards (see Plate 2 below) or removed completely for serving purposes. All of the components not attached to the main chassis were connected by plug and socket interconnections.
Plate 1 – G6 Chassis (Dual Standard) in Upright Situation
Plate 2 – G6 Chassis (Dual Standard) in Lowered Situation
Plate 3 – G6 Convergence Panel Control Side
Plate 4 – G6 Convergence Panel Underside
The G6 IF and colour decoder circuitry shared the same PWB – see Plate 5 below.
Plate 5 – G6 IF and Colour Decoder Panel
The G6 Timebase circuitry and tube base PWB’s are shown in Plate 6 and Plate 7.
Plate 6 – G6 Timebase Panel
Plate 7 The G6 Tube base
Thanks to Stewart for the photos of his awesome G6 set.