On Jun 4, 2006, at 10:59 AM, Peter Chadwick wrote:
> Colin said:
>> If an amplifier has been absolutely reliable for 10
> years, with or without a parasitic suppressor, and an arc occurs<
>
> Personally, I'd be more inclined to suspect something in the tubes -
Arcs that are almost without noise are typically in a vacuum. Loud
bang arcs are in air.
> although it is perfectly possible that the parasitic suppressor has
> changed in some way such that it no longer functions.
Indeed, Peter. Greatly increased R-supp increases VHF-Q, which
increases parallel-equivalent anode-R and that increases VHF
amplification,
> However, I have strong disbelief in parasitics causing these
> flashovers, but that's just me. There's something called
> 'logarithmic decrement' comes to mind when there's talk of
> ringing.......they talked a lot about in the days of spark (no, I'm
> not quite that old, although I will plead guilty to occasionally
> feeling so!)
> 73
> Peter G3RZP
> _______________________________________________
> Amps mailing list
> [email protected]
> http://lists.contesting.com/mailman/listinfo/amps
>
R L MEASURES, AG6K. 805-386-3734
[email protected]
_______________________________________________
Amps mailing list
[email protected]
http://lists.contesting.com/mailman/listinfo/amps
|