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Author Topic: UTC S6 6.3 / 7.5 volt filament transformer info?  (Read 3061 times)
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w1vtp
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« on: July 29, 2013, 12:12:09 PM »

Does anyone know what the actual windings are on a UTC S6 filament transformer?  I'm trying to avoid loading dozens of GIF files to find the info

The way the terminals show it looks like it may be a 7.5 volt secondary with 6.3 taps on it.  But there are two different "CT"s on it which might suggest separate windings.  That would suit my needs perfectly

Al
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n2bc
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« Reply #1 on: July 29, 2013, 12:18:54 PM »

According to this:  http://www.technicalaudio.com/pdf/UTC_United_Transformer_Corp+TRW+OPT/UTC_United_Transformer_Corp_1960_REM_24.pdf

The S6 is an input transformer.  The S61 is a 7.5V tapped at 6.3V @ 10A
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WZ5Q
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« Reply #2 on: July 29, 2013, 03:47:18 PM »

Howdy,

This is from the 1968 UTC Catalog...



* 1968 UTC S-6.gif (192.4 KB, 689x898 - viewed 412 times.)

* 1968 UTC S-61.gif (229.91 KB, 690x896 - viewed 419 times.)
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Mike
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W3GMS
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« Reply #3 on: July 29, 2013, 04:06:58 PM »

Does anyone know what the actual windings are on a UTC S6 filament transformer?  I'm trying to avoid loading dozens of GIF files to find the info

The way the terminals show it looks like it may be a 7.5 volt secondary with 6.3 taps on it.  But there are two different "CT"s on it which might suggest separate windings.  That would suit my needs perfectly

Al


Looks like an UTC S-6 is a carbon mic to grid transformer! 
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Simplicity is the Elegance of Design---W3GMS
w1vtp
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« Reply #4 on: July 30, 2013, 01:13:03 PM »

Thanks guys for your response.  Mike - you have a really sweet looking operating position.  You figured it out that my 76 year old eyes didn't catch the "!" at the end of the model - yep - it's a S61.  I was hoping for separate windings but not so.

Oh well - it's a nice xfmr but not for my current needs. Back on the shelf in the back room it goes

Al

PS:  you too Bill.  You guys keep me on the straight and narrow Grin


* UTC_S61_LABEL.jpg (261.53 KB, 725x492 - viewed 370 times.)
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