Letter Re: Heathkit Radios
Editor: I disagree with the letter regarding the unsuitability of Heathkit (vacuum) tube radios for EMP protection. Let me elaborate: Lethal voltages: While you really don’t want to tangle with +700 VDC, the most lethal voltage in any radio is that which comes from the wall outlet: 120 VAC. AC fibrillates hearts (we use it for that purpose in cardiac surgery); DC defibrillates hearts (done that many times). Requires 120 Volts AC: Unless you get the 12 volt power supply (I have two). Or solar power / inverters.…right? No cooling fan: Well, they rarely need it! My primary rig is …