4920Re: Weird beacon features.
- Dec 19, 2002--- In email@example.com, Robert Cruz <dcat4955@b...>
> > "Last month I had to replace the 807 vacuum tube finals in ahave
> > beacon near here. "
> great tube. i'm surpised they still have that stuff in operation. i
> a bunch of 807's hoping to one day get a nice tube audio amp to usethem
> we still have tube items in the bellsouth c.o. i work in. we cant
> it because no one remembers what its for or if its been disconected.You will be even more proud to know that the maintenance record for
> they look like they may be some form of high impedance line amp or
> something. the tubes all glow though!
this unit showed the last service of the finals in 1994. Now, mind
you, this unit has been on the air 24/7. When checked, both finals
were totally flat but the modulator, which also has 807s, was
functioning well with plenty of emission headroom.
This particular unit was "upgraded" in the 1980s and had the original
motor-driven morse code keyer replaced with a solid-state unit.
Otherwise, it's the same old transmitter.
This past year I moved back to my home state after 33 years away
performing engineering functions in Colorado. It's quite remarkable
to see good old vacuum tube equipment in full swing up here. I guess
that's our "little secret".
In addition, the Qwest COs up here never had the "US West" signs
taken off of them. There are also still many "Bell System" and "AT&T
Long Lines" signs on buildings if you look hard enough. It is
painfully obvious that Qwest has concentrated on the money-making
regions of their network and have allowed the rest to languish. I
have spent the past two years studying the inner workings of the
old "Phone Company" and am sorry to say that I have little respect
for how the "new" company - or remnants of it - is being run.
But that's another story for several thousand pages of email...
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