Recent content by BFM

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    Replacing electrolytic cap with non-polarized a mistake with tube radio?

    Most are like that due to electrical codes. They can't have ungrounded sockets. When using one to just isolate the mains from your equipment for normal operation, as some do to cut down on interference from the mains, that's fine and that's how it should be. But for repairs and troubleshooting...
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    Replacing electrolytic cap with non-polarized a mistake with tube radio?

    I know this is an old post. If you are still trying to get this going, here is some advice. From what I can see of your schematic, you are working on an old AM radio. They were known as the "All American Five" as they have 5 tubes. Many companies made radios like these. They are extremely...
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