06-07-2019, 09:54 AM
One more thing: buzz out of your output transformer.....is this mounted on the speaker? When you checked the speaker on that other radio, was the transformer on it?
If yes - good, if not - see if the OT has a turn short (not so easily detected on the secondary as it is low resistance, and on primary is also not necessarily easily detected). One way of doing it - feeding it an AC 60Hz (if you do not have an audio generator) and measuring the output: the input/output should ratio should be your turns ratio. If not (little or no output), you have some short.
If yes - good, if not - see if the OT has a turn short (not so easily detected on the secondary as it is low resistance, and on primary is also not necessarily easily detected). One way of doing it - feeding it an AC 60Hz (if you do not have an audio generator) and measuring the output: the input/output should ratio should be your turns ratio. If not (little or no output), you have some short.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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