Hello Jim,
On Friday, August 12, 2016, you wrote:
> Hello all,
> This is my first posting, so Howdy..
> I have a Henry 2k-2 (modified to take 3-500Zs). After I bought it, some
> years back, I fired it up and tube filaments were very bright and HV was
> high.
> Talked to Henry. They asked me the plate transformer number, which they
> looked up and said "Oh, that's the 200v European transformer". So, I put
> a hefty variac on the 240v AC incoming and all is fine, except I'd like
> to ditch the variac and was wondering about if anyone on here had any
> wise words about using an SCR instead to back the AC voltage off.
> My experience with big SCRs (TV studio lighting) was that they tend to
> put out a lot of RF hash. I also wonder about how the choke and filter
> cap in the power supply would like non-sinusoidal AC waveform?
> Anyone have any experience with this?
> Thanks and 73,
> Jim, W2XO
Buck transformer, for sure, SCR's are more complex a solution, and may
give noise or other issues.
--
Best regards,
Chris mailto:chris@chriswilson.tv
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|