Philips K11, where was this set made? - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

hans · 15th Sep 2016, 7:32 pm

Quote:

Originally Posted by Welsh Anorak

I'd forgotten the K9 but I don't think they were ever retailed. I only ever saw a couple which looked like a big version of the KT2.

The KT2 is a "compact" version of the K9. (and K11) It shares a lot of modules and other components.

Maarten · 15th Sep 2016, 10:44 pm

The KT1 is closer to 'a compact version of the K9' if you ask me. It shares the power supply and several plugin modules and the general layout. The KT2 was an evolution of the KT1 and K11 chassis in some details but has many new design details that may have found their way to the K12 and KT3 chassis.

hans · 16th Sep 2016, 11:06 pm

I tried to feed the telly with some signals. I thought my HDD/DVD thing had RF output from the DVD/HDD. It seems that it only lets the RF input through the machine without adding something and to see what the machine actually produces you need to use some of the other connectors that aren't compatible with the K11. (This probably means that my Tandberg CTV1 Works as I used the same player With the same (no) result.)

Then I tried my VHS/DVD combo which also didn't work, but I was awarded with a blue screen with "STOP". This means the set is OK. The only thing I could see was the convergence need some adjustment as red and green were three pixles off.

Quote:

Originally Posted by Maarten

The KT1 is closer to 'a compact version of the K9' if you ask me. It shares the power supply and several plugin modules and the general layout. The KT2 was an evolution of the KT1 and K11 chassis in some details but has many new design details that may have found their way to the K12 and KT3 chassis.

The KT1 is closer, but the KT2 isn't far off. It is many years since I saw a KT2, but I remeber the K9/11 modules were used in the signal path of this set, except from one (iirc). It also has two swing out chassis, one for sigals and one for deflection. When it comes to the power supply the regulator was different. Did the KT2 use the same chip as the K12 in the power regulaor and run on line frequency?

Maarten · 17th Sep 2016, 11:33 pm

I'm not sure about the chip used in the KT2, but the power supply indeed runs on line freqency and the line output's basedrive is derived from the power supply's buck coil.

I seem to remember the IF modules and colour decoder may be the same, but the sync and deflection modules aren't the same as used in the K9/KT1/K11.

15th Sep 2016, 10:44 pm	#22
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,199	Re: Philips K11, where was this set made? The KT1 is closer to 'a compact version of the K9' if you ask me. It shares the power supply and several plugin modules and the general layout. The KT2 was an evolution of the KT1 and K11 chassis in some details but has many new design details that may have found their way to the K12 and KT3 chassis.

17th Sep 2016, 11:33 pm	#24
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,199	Re: Philips K11, where was this set made? I'm not sure about the chip used in the KT2, but the power supply indeed runs on line freqency and the line output's basedrive is derived from the power supply's buck coil. I seem to remember the IF modules and colour decoder may be the same, but the sync and deflection modules aren't the same as used in the K9/KT1/K11.