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Title: Transformer construction question.......... Post by: RolandSWL on May 30, 2013, 09:20:08 AM Hi All,
What makes a modulation transformer different from an interstage audio transformer? Is there a difference in how they are constructed? Diffferent core and insulation materials? TIA, Roland.............. Title: Re: Transformer construction question.......... Post by: Opcom on May 30, 2013, 10:28:13 AM mod transformer:
1. higher voltage insulation on the wire (different varnish sometimes) 2. core may be gapped if it is intended to pass the DC current from the RF amp. This delays saturation. 3. physical attributes due only to power or voltage level like ceramic insulators, etc. other stuff too. My knowledge of fine detail of them is limited. Title: Re: Transformer construction question.......... Post by: W7TFO on May 30, 2013, 12:17:38 PM A good interstage (or input) transformer will have laminations made with high nickel content steel.
Mod transformers typically use grain-oriented silicon steel. 73DG Title: Re: Transformer construction question.......... Post by: WBear2GCR on May 31, 2013, 05:58:59 PM And usually size. |