[Milsurplus] WTB Manuals and Power Supply Question

Unserviceable but Repairable cosmoline at ba-watch.org
Thu Sep 30 12:17:20 EDT 2004


John it looks like we sed same.  Fr'instance
u sed (kinda)

> it seems from memory that as load drops, so too does ripple

& I 1st sed

> ...and the C oughta be picked to deliver load V within ripple-limits
     between rectifier pulses.

If it does it for full load, it'll sure give lower ripple @ less load

The decay's given by

               -t/RC
    V = Vp X e 

Where t, give or take, is near .5 the peak spacing.  So as RC gets bigger
the drop decreases to nothing.

And why if there's a near B+ short lotsa hum results.  An often-missed
consequence leading to unneeded filter cap. change-out


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