The G11 Project

Introduction

The G11 was launched in the UK in 1977 to replace the long served G8, here is a scan of a Philips sales manual covering all aspects of the design, development and release of the new chassis.

The Philips G11 was designed and manufactured in Britain, it anticipated high standards of quality, performance, reliability and serviceability. It incorporated the latest generation of colour picture tube techniques, the 20AX in-line system, every model met the exacting requirements of safety at the time BS415.

Read on to gain an insight into the G11.

Later Example G11 from my collection, a 1980 G22C706/1,

see links at foot of page for a 1978 version and this in greater detail

myg11tv

g11-1

g11-2 g11-3 g11-4 g11-5 g11-6g11-8 g11-9 g11-10 g11-11 g11-12 g11-13 g11-14 g11-15 g11-16 g11-17 g11-18 g11-19 g11-20 g11-21 g11-23 g11-24 g11-25 g11-26 g11-27 g11-28 g11-29 g11-31 g11-32 g11-33 g11-34 g11-35 g11-36 g11-37a g11-37b g11-37c g11-38 g11-39 g11-40 g11-41 g11-42

Here are two G11 examples in my collection

1978 Roberts RCT-262/T

1980 Philips G22C706/01

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Ian
Ian
Guest
5 years ago

I remember the Philips G11 and in my opinion it was a very poor television set compared to the Philips G8. To many faults to mention, not a great TV.

Marcus 3700
Member
5 years ago

Wow an awesome read with tons of information regarding the G11. I really enjoyed reading all this. To me Chris, this must be the most informative information regarding this chassis, well done that man! for posting this!

GEC2110
Member
5 years ago

The early G11 was poor they improved later on. Why did Philips make mistakes with the early sets? The model 660 with its on/off control panel which usually ended up inside the cabinet, the frame TDA2600 holder, the infamous smoothing cap. The first push button channel selection. All these things should have been addressed before and perhaps the reputation of early sets could have been better.

The Philips model 661 and the Pye versions were an improvement. Having said that they were easy to work on and innovative at the time mid 70’s. The picture quality was very good with the 20 AX tube in all versions.

Glenn P
Glenn P
Guest
3 years ago

The power supply still had that annoying rattle when it was working . I suppose the inline tube was an improvement though. The frame chip failure rate due to that smoothing can fault was annoying and the wonky AFC switch on the tuning tray. I thought the picture was better than a G8 myself because the tube was prealigned and seldom needed any after manufacture adjustment .

lyons.den@ntlworld.com
Member
3 years ago

The G11’s I saw at the time in General gave a good picture. However, a good few of these sets I remember , the Pictures ballooned briefly every time there was a change of seen.

Richard
Richard
Guest
5 months ago

My second favourite tv the first the G8

slidertogrid
Member
Reply to  Richard
5 months ago

I liked the G11, true early models suffered from a few problems some design some let down by poor components.
Philips tried really hard to get it right but failed when you compare it to other 20AX sets like the Panasonic 2200, ITT CVC30 and Decca 100 which were more reliable in the early days when the sets were newish.
Once the G11 had had the various modifications carried out and you had a good solder up of the dry joints which effected most if not all of the panels they worked well and had a good long service life. LOPT failure was very rare and unlike the Decca and ITT sets there was no tripler to fail.
There was a modification to stop the picture size jumping about on scene brightness change it involved lifting a diode in the can on the RGB panel and soldering it to the top of a resistor. ‘Known as the beam limiter mod’. We still had them out on rental at over 10 years old as pensioner and slot meter sets eventually scrapped when the tube finally wore out. sometimes when the second tube wore out!

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