If you will double the current, then two separate HT- windings (wired in "parallel") are necessary.
If you will double the voltage, then wire this two HT- windings in "serial".
The "parallel" option can not be realized with a CT- HT winding
The use of a CT- HT (for a two way silicon diode rectification) is simply ancient and has no advantage in comparsion to a "modern" bridge rectification.
BTW: I have absolutely no clue why so many US amp builders still use a CT- Powersupply nowadays
The CT for the heater winding is also obsolete, IMO.
A "virtual" CT via 2x 100R or (even better) a good quality 100R Pot is safer. Plus: less manufacturing costs
Regards
Robert
Magnetics Corp
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Re: Magnetics Corp
Last edited by robert on Sat Jan 22, 2011 5:17 am, edited 2 times in total.
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Re: Magnetics Corp
Suggestion. Since this is no longer about said Transformer Manufacturer, perhaps a new dedicated topic be started?
"I don't like country music, but I don't mean to denigrate those who do. And for the people who like country music, denigrate means 'put down' " - Bob Newhart
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Re: Magnetics Corp
A good idea, we could call this new topic:
"The universal Magnetics Corp. Power Transformer"
Because it looks to me that "Magnetics Corporation" is willing (and also able, of course) to build such a transformer for an affordable/ fair price
Regards
Robert
"The universal Magnetics Corp. Power Transformer"
Because it looks to me that "Magnetics Corporation" is willing (and also able, of course) to build such a transformer for an affordable/ fair price
Regards
Robert
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Re: Magnetics Corp
so yes
instead of one winding for exemple 350 - 0 - 350, a better option are two separate windings : 350 - 0 and 0 - 350
instead of one winding for exemple 350 - 0 - 350, a better option are two separate windings : 350 - 0 and 0 - 350
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Re: Magnetics Corp
A separate thread has been started please move the discussion there if you want.
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Re: Magnetics Corp
Digging the new 45/50 watt upgrade Trans. Fired up a bridge rectified 50 watt, and am pleased with the voltage options.ClassicTone wrote:We at ClassicTone recently introduced the following new ClassicTone transformers to our ClassicTone line of vintage contructed amplier transformers as follows:
Marshall JTM 45 / Plexi 50W Upgrade Style Power Transformer http://classictone.net/40-18054.html" onclick="window.open(this.href);return false;
Marshall 100W JCM900 & JCM2000 Style Output Transformer http://classictone.net/40-18055.html" onclick="window.open(this.href);return false;
Marshall 18W Upright Mounted Power Transformer featuring multi-national voltages http://classictone.net/40-18056.html" onclick="window.open(this.href);return false;
I hope you enjoy them!
ClassicTone By Magnetic Components, Inc.
Well done!
"I don't like country music, but I don't mean to denigrate those who do. And for the people who like country music, denigrate means 'put down' " - Bob Newhart
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Re: Magnetics Corp
Thank you! Glad you like it.
Classictone By Magnetic Components, Inc.
Classictone By Magnetic Components, Inc.