[AMRadio] 75TH vs. 75TL (was Class C stuff)

[Bob Bruhns]

Oh yeah, oh yeah, oh yeah.

If you have too much to scan yourself, send me photocopies and I'll
scan them too.

  Bacon, WA3WDR

----- Original Message -----
From: "Phil (VA3UX)" <phil at vaxxine.com>
To: <amradio at mailman.qth.net>
Sent: Wednesday, March 20, 2002 8:17 PM
Subject: Re: [AMRadio] 75TH vs. 75TL (was Class C stuff)


> I have an old Eimac catalog that has data on a lot of these old
tubes, even
> plate curves on some of them.  ANy interest in me scanning them
and posting
> them on my website ?
>
> Phil
>
> At 06:45 PM 3/20/2002 -0500, you wrote:
> >I
> > >What is the difference between the 75TH and 75TL? I seem to
recall it was
> > >only a different bias setting?
> >
> >'H' = high mu
> >'L' = low mu
> >
> > >Also, with respect to the 30K-1 vs. 30K-5, I think the only
difference in
> > >in the PA deck - mod deck should be the same, so....is there an
> > >adjustment somewhere on the mod deck for setting the bias on
the
> > >modulators? How much of a difference is there to use a 100TH
instead? I
> > >seem to recall you saying that you ran 100THs in yours....
> >
> >Check ARRL manual or Eimac tube sheets.
> >
> > >Brett Gazdzinski wrote:
> >
> > >> In my 30k-1, the 4-125 would glow very bright orange
> > >> at 2500 volts and 150 ma.
> > >> The 4-250 would show slight color, the 4-400 would not
> > >> show any color at all.
> >
> >Why is no one surprised at this news?? <G>
> >
> >Bill
> >--
>
>-------------------------------------------------------------------
-------------------
> >wwd at netheaven.com  To the warriors go the spoils of war; to the
hindmost
> >.  .  the surplus.
>
>-------------------------------------------------------------------
-------------------
> >
> >
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