On Oct 3, 2006, at 3:20 PM, pentalab wrote:
--- In ham_amplifiers@..., R L Measures <r@...> wrote:
To see how much ripple was noticeable on the air, a friend put a
4-1000A on the air with a 6kV FWB PS running a 2uF C-filter. I
could
not hear any ripple -- at least on
SSB. AM would likely have been different.
### The ripple with say 2 uf and 6 kv @ 800 ma
Om SSB, it's about a third of that.
should have
been VERY noticeable........ unless of course your xcvr chops off
all the audio below 300 hz.
My receiver has a tunable IF, so i could hear through the zero beat
You can hear 120 hz ripple plane
as day on ESSB.
He did not have noticeable ripple with voice modulastion.
## 6 kv and a 2 uf C input filter would result in real bad
dynamic HV regulation !
### I used 16 uf [with a 2 holer 4-1000] which resulted in 3%
ripple.. I then increased it to 48 uf.. and 1% ripple could be
obtained.
### BTW... my co-hort's tell me that most of these Microwave
oven's all have one 1-uf 5KV oil cap in em. I know one
fellow who paralled about 3 x doz of em... it worked.
Later... Jim VE7RF
Yahoo! Groups Links
R L Measures, AG6K, 805.386.3734
r@..., , rlm@..., www.somis.org
