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Originally Posted by Chad Hauris
The HV filter cap is a ceramic type and is not too likely to be bad...it is 500 mmfd (micro-microfarads, or picofarads) not 500 mfd.
Here is a source I have found of these type caps:
http://www.rfparts.com/caps_ceramicdoor.html |
This is what I love about AudioKarma. Lots of real knowledgeable, and kind folks.
I forgot to note the footnote on the Sams capacitor list for my set. The cap is ceramic (which I didnt know) and it plainly says that Electrolytic and Paper Capacitors are rated in mfd. and ceramic and mica are listed in mmfd. Thanks Chad! If I were not straightened out on this I may have spent a lot of time looking for something that would be wrong.
This has been a real informative thread and hopefully will help others in the future. However, sometimes we get into debates on particular things and its hard to really know what is correct. Like the question of weather or not a tube rectifier is producing DC at 50 volts. If not, well my theory is right, and you are not doing anything but the power supply filters any good as far as a "slow warm" goes. The tube is not conducting, so you are not getting DC to any of the paper caps. If the other theory is right then the tube is conducting at reduced voltage we do not need to build a solid state rectifier in order to try slow warming. Hopefully this thread will go on to a conclusion on this matter. All old TV people NEED to know this.
This is not a complaint. I love the debate. It helps to better understand what is going on. Without some debate I doubt the learning process would be as effective as I think it is. Great stuff!!
