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STC 141 Mantel Radio
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Return to top of page · Post #: 1 · Written at 10:33:11 PM on 9 May 2015.
	Little Nipper Location: Australia, SA Member since 21 December 2011 Member #: 1047 Postcount: 85
Does anyone have any info on a Philips Miniwatt Made in Great Britain EK32 Valve? It is red in colour, but I can only find data for an EK3

Return to top of page · Post #: 2 · Written at 11:37:51 PM on 9 May 2015.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5254
There is a site called Franks Electron Tube Pages always the first port of call http://www.tubedata.info/ EK32 is an Octode frequency converter. Do be careful with those as you can break the bond between the socket & metalisation. Pin 1 Metalisation Pin 2 Heater Pin 3 Anode Pin 4 Grids 3&5 Pin 5 Grid 1 (control Grid) Pin 6 Grid 2 Pin 7 Heater Pin 8 Cathode & Grid 6 Top Cap Grid 4 Signal grid

Return to top of page · Post #: 3 · Written at 1:01:01 AM on 10 May 2015.
	MonochromeTV Location: Melbourne, VIC Member since 20 September 2011 Member #: 1009 Postcount: 1182
The EK32 is the same as a EK2G, and is electrically equivalent to a p-base EK2: http://frank.pocnet.net/short/054/2/252.pdf

Return to top of page · Post #: 4 · Written at 5:35:53 AM on 10 May 2015.
	Wa2ise Location: Oradell, US Member since 2 April 2010 Member #: 643 Postcount: 830
When I first saw tubes like these, I thought they were "surface mount device" tubes. As if they were to be soldered to circuit boards... Sure...

Return to top of page · Post #: 5 · Written at 10:44:40 PM on 10 May 2015.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5254
The circuit I have for the one I sorted uses a 6A8 so there may have been variants if it was made around war time? Marc

Return to top of page · Post #: 6 · Written at 8:16:16 AM on 11 May 2015.
	MonochromeTV Location: Melbourne, VIC Member since 20 September 2011 Member #: 1009 Postcount: 1182
There are four variants of the STC 141. 141: 6J8G, 6G8G, 6V6GT & 6X5GT. A141: 6K8GT, 6G8G, 6AG6G & 6X5GT. B141: 6K8GT, 6G8G, 6V6GT, 6X5GT. C141: 6A8G, 6G8G, 6V6GT & 6X5GT.

Return to top of page · Post #: 7 · Written at 10:23:39 AM on 11 May 2015.
	Little Nipper Location: Australia, SA Member since 21 December 2011 Member #: 1047 Postcount: 85
It has a reddish brown cardboard wrapped Ducon electrolytic that goes from pin 1 to chassis, so big it has rubbed on the bottom of the bakelite. My guess is someone else has changed things at a much later date than the radio was manufactured. I may have to give it a total rebuild if I can get some photo's of one as it came out of the factory. Does anyone have circuits for the A, B and C models? I only have the first one.

Return to top of page · Post #: 8 · Written at 10:28:16 AM on 11 May 2015.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5254
I am in the process of sending a few photo's to Brad. One is the green 141C with circuit. I did find a 6K8 that should not have been there in a set lately. Not uncommon to find 6A8; 6J8; 6K8; & ECH35 in the other ones spot working away happily. But not always with the same performance. Marc

Return to top of page · Post #: 9 · Written at 5:18:07 PM on 11 May 2015.
	Little Nipper Location: Australia, SA Member since 21 December 2011 Member #: 1047 Postcount: 85
Something this nice and old, I would like to put it back to original.

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