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Old February 15th 10, 04:13 AM posted to rec.radio.shortwave
dave dave is offline
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Default Recommendations - 12 / 13.8v Power Supply, ~ 5 amp?

bpnjensen wrote:
On Feb 14, 2:32 pm, wrote:
bpnjensen wrote:

Is it safe, then, to assume that a combination of draws that total
somewhat less than the lower rating would not put undue stress on the
supply? (FWIW, I'm still thinking the Astron 7/5 amp supply for my ~
2.5 amp max needs, or if I feel unsure, the Astron 12/9). Might even
throw a muffin fan on the back.


Gentlemen, thanks for all your great help!


Bruce


I run a 12 Watt radio (K3/10), my LDG Z-100 tuner, and a 45 Watt amp
(Tokyo Hy-Power HL45B) on an Astron SS-12. The thing never even gets warm.


That's reasonable I think. You'd need to amass in the neighborhood of
100-120 watts demand before you'd require roughly an ampere of
current, and that should be just barely cruising for the SS-12.


The radio uses about 3 Amps on transmit. The amplifier about 5.