On Aug 7, 2005, at 11:26 PM, Joe Isabella wrote:
> I'm 99% sure they are Taylors. I bought a matched pair of the RFP
> tubes with 2 year warranty about 3 years ago. At that time, they told
> me the two brands are produced at the same time, but the RFPs are
> cherry picked so there's less of a risk on the extended warranty. It
> was worth the extra $10 to me for the extended warranty. I had them
> in a TL-922 first after the poor plate welds on the Eimacs sent my
> Plate V to the grids and took out the grid chokes. I've seen this
> many, many times now --
Agreed, but I have never seen bad anode cooler welds in tubes that
were made in San Bruno instead of in Salt Lake City.
> I will NEVER pay twice as much for an Eimac 3-500Z. I now have the
> exact same tubes in a Henry 3K-A, and they take all the abuse I give
> them and just keep making power. I frequently run AM, and have had
> them as red (orange?) as an electric range heating element on High.
> Never had an inkling of a problem, and when I do finally run them over
> the edge, I'll buy another set of RFP 3-500ZGs. With 4kV on them,
> they will easily exceed 2kW output with 100W. I'm sure with more
> drive they'
> ll make
> even more power,
3-500Zs typically begin to run out of emission above 420mA per each.
> but I typically drive it with 70-80W to keep it legal.
But of course, and we always drive at the speed limit on freeways.
> I have no experience with the Amperex tubes, but I've read that they
> take a little more drive to achieve the same power out as the
> Taylors/RFPs.
>
> Joe, N3JI
>
>
> Michael Tope <W4EF@dellroy.com> wrote:
> I just bought a used Ten-Tec Centurion on behalf of a friend. We
> both were under the mis-informed belief that it would be equipped
> with Eimac 3-500ZG's. Instead it has a matched pair of RF Parts
> branded PRC manufactured 3-500ZG's. Anybody know the track
> record of these tubes compared to the Amperex 3-500ZG (made
> in France?) or the ones Eimac used to make?
>
> Thanks,
>
> Mike, W4EF..................................................
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
> ---------------------------------
> Start your day with Yahoo! - make it your home page
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|