Mystery Halson radio model 15 Pg 6 electrical issues
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Joined: Feb 2013
City: Irvington, NY
Most times the high voltage caps are across the primary of the output transformer where they can see inductive transients. When you have a push pull transformer the audio peak voltages can be twice the B+ supply.
If the output tubes are overdriven into cutoff, the inductive spike can reach very high voltages. This is one of the purposes of the cap as it forms a RLC circuit which effectively damps the resulting transient.
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RE: Mystery Halson radio model 15?? - by Mondial - 02-07-2014, 05:23 PM
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