> For your information ( K1MH and Measures)
>(a) I sold B & W only the PT2500 amplifier not Viewstar nor the PT1000
>single tube amplifier. I kept the PT1000 to continue on with another
>company.
>(b) A problem with the Pi-l tank in the PT1000 or the PT2500 is just as
>bizarre as Measures idea that every amp built will not work and never
>survive unless they have a Measures hairpin nichrome loop whichamacallit
>installed in it.
What blew the grid current meter shunt R and the meter armature? . . The
Tune C spacing in the PT1000 is much more than adequate for the peak RF V
encountered. What could have possibly caused the Tune C to arc at the same
time the grid meter blew? .
. The "whichamacallit" (the parallel Ls/Rs suppressor) reduced VHF-Q and
VHF-Rp by >40%. {N7WS measurements using a using a Hewlett-Packard Model 4191A
RF Impedance Analyzer)
- All HF amplifiers use amplifier tubes that are rated for full input well
into the VHF region. VHF voltage amplification is basicly Mu multiplied by
VHF-Rp. Is more VHF amplification desirable in an HF amplifier, Mr. Hrivnak?
> I think you guys should seriously about about all the young guys
>who are coming up behind us and reading all the needless diatribe and
>incorrect information some of you throw around.
Perhaps there are a few young guys, and some not so young guys, who want to try
to figure out what might be making the Tune C arc in this amplifier? So far, I
see a number of correlations here to other amplifiers which apparently had
parasite problems.
---------------
To see if Rich guessed right, a lower VHF-Rp suppressor can be installed. If
the Tune C arcing continues as before, Rich is gonna get laughed at. .
---------------
>It isn't constructive and
>does not teach anything to the guys that really want to know something
>about amps. There has to be more in life than hairpin loops and holes in
>your grid !! Get a life !
> Paul Hrivnak (founder of Viewstar)
>
¿Not Invented Here Syndrome? . .
- cheers, Mr. Hrivnak. Hope you can stick around for possibly some laughs.
cheers
Rich...
R. L. Measures, 805-386-3734, AG6K
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