General Electric Portable TV. Model T12P1
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Location: Penrith, NSW
Member since 7 April 2012
Member #: 1128
Postcount: 368
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Hello again friends, I recently decided to overhaul my little 12” General Electric television. An unusual set for its time, it uses Compactron valves, as well as conventional valves.
Before I get into the details of the repair, I shall tell you more of what makes it so different from its contemporaries
The set contains five Compactron valves, five conventional valves, and just three semi-conductor diodes.
The valves heaters are series-wired, except for the E.H.T. Rectifier valve.
The heaters are switched from 120 volts when the set is operating, to 50 volts when switched to standby, giving an instant-on feature.
Power consumption for this set is 150 Watts, compared to just 33 Watts for the National TR-602AA 12” portable, that lives beside it.
Most remarkable is that this particular set was built in November 1967, and examples of this model continued to be built past May 1971.
The last hurrah of the fully valve set.
Some more details.
1. Manufactured by General Electric Kirby Appliances Limited, Padstow N.S.W.
2. Has just six pots. Volume, Brightness, Contrast, Vertical Height, Vertical Lin, and Vertical Hold.
Wayne.
General Electric T9 T12 Circuit Diagram
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7290
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Photos and document uploaded.
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A valve a day keeps the transistor away...
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6678
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Power consumption for this set is 150 Watts
Be intereresting to know its power consumption on standby.
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Location: Werribee South, VIC
Member since 30 September 2016
Member #: 1981
Postcount: 470
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Does that model have the satellite transformer like it's 11 inch little brother. (native 110V)
I used to work on the 11 inch model as an apprentice and they were not my favourite by any means.
They suffered from heat greatly as they were very crammed in.
Worked well enough once their ills were sorted out.
The AWA P1 was far superior.
Sourcing the compactron tubes could be an issue if it needs any.
Good luck with it.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6678
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Location: Silver City WI, US
Member since 10 May 2013
Member #: 1340
Postcount: 977
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"They suffered from heat greatly.."
Like its sister set the GE 'PortaColour' from same year, 1967, available in NTSC, and PAL for German market.
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Location: Penrith, NSW
Member since 7 April 2012
Member #: 1128
Postcount: 368
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Hello GTC.
Although the power consumption is quoted as 150 Watts,
when running with a non-changing test pattern,
I get a consumption figure of 122.5W,
and on standby I get 32.7W.
Wayne.
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6678
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on standby I get 32.7W
So roughly the equivalent of having an incandescent table lamp burning all day and night.
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