CT design trans application
Could someone tell me if I can use a transformer with center tapped secondaries when the schematic doesn't specify CT?
Because the Hammond 278CX power trans doesn't have a 5V filament for the rectifiers, I have to purchase a separate filament transformer for the LV. Choices are the following:
1. Low voltage PC board mount (low profile), split bobbin design, dual winding sec, non-concentrically wound, low prim to sec coupling (no electrostatic shield required), hi-pot of 2500V rms, class B insulation 130 degree C
2. Open style filament & LV rectifier use trans, all sec center tapped VAC, open style, dual bobbin design (no electrostatic shield required), class B insulation, hi-pot test of 2000V rms
The schematic calls for 5V, no CT. So I don't know if the CT would cause an issue. Do I need 10VCT to get 5V on either side of the CT to ground if I use a CT filament trans.
Your comments are appreciate.
You can use a CT transformer, just don't use the CT. You want a 5 volt CT transformer, not 10 V. I have used both types of these transformers for filament use. I hide the PC mount ones under the chassis. It is mostly a matter of personal taste.
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