>Hello all,
>
>Anyone out here have any experience with k2aw (silicon alley) HV
>rectifiers? I'm looking to replace the individual devices in my
>LK-800 and am concerned with the ratings.
>
>K2AW claims that although his rectifiers are sold as 1 amp devices,
>with proper heat sinking, they are 3 amp devices.
>
>My supply runs about 3100 volts no-load and can deliver over 2 amps
>in SSB service. I would want to use 4 of the 14KV "1A" in a bridge
>configuration, replacing the 1N5408 strings. (I already have them)
In FWB configuration, 1N5408s will reliably deliver up to 6A of average-I
if they are mounted on a perfboard in open air. No heatsink required.
Why replace such with lighter-rated rectifiers and a bulky heatsink,
Sean?
If your 1N5408s have r/c "equalizers", you might want to read page 11-9
in the newer version of the ARRL Handbook.
Also, the actual piv per leg at 3100v out with a C-filter is well
under 4kV per leg. Why would you want to use a 14kV/leg inverse rating?
Have you ever heard the saying 'if it works, don't fix it'?
...snip...
>Sean
Rich---
R. L. Measures, 805-386-3734, AG6K
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