If a shortwave radio is damaged after using a switching power supply, there are two possible solutions:
* Use a lithium battery.
* If a shortwave radio is damaged after using a linear power supply (especially one that's prone to "frying" at high voltages), there are also two possible solutions:
* Use a different power source.
I have personally used both switching and linear power supplies, and I can confirm that neither of them typically damages shortwave radios. The most common issue with linear power supplies is that they can cause the voltage to drop unexpectedly, rather than rise as one might expect. For example, I once saw a large Hua linear power supply damage a tuning tube, but the actual voltage did not increase significantly; instead, it decreased.
In general, the biggest threat to shortwave radios comes from incorrect polarity connections.
闽ICP备2021006864号-7
闽公网安备35020602002794号
互联网举报中心