UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Hallicrafters SX-25 Rebuild: New Mains Transformer Questions.

turretslug · 12th Oct 2020, 11:43 pm

I think it would be best to get hold of a known good 80 before going much further- the 83 is a mercury vapour type which are best used with choke-input supply arrangements as their low impedance means that they can be damaged by the high peak currents possible with capacitor-input filters.

12th Oct 2020, 11:43 pm	#10
turretslug Dekatron Join Date: Nov 2011 Location: Surrey, UK. Posts: 4,396	Re: Hallicrafters SX-25 Rebuild: New Mains Transformer Questions. I think it would be best to get hold of a known good 80 before going much further- the 83 is a mercury vapour type which are best used with choke-input supply arrangements as their low impedance means that they can be damaged by the high peak currents possible with capacitor-input filters.