[AMRadio] Tube Shipping Question

[rbethman]

250THs and 3-1000Zs I'll agree with.

4PR-1000As can still be found in significant numbers.

One source is Vandenberg AFB, CA.  They have had pulls from their radar 
systems for decades.

I used to get them for $75 a pop.

Where the USAF gets their supply of 4PR-1000As, I have no idea.

Bob - N0DGN

On 6/2/2012 2:05 PM, Rob Atkinson wrote:
> You can get insurance, take photos, do all sorts of measures to get
> compensation in case the tubes get smashed but if the tube is a
> 4-1000A, 250TH, 3-1000Z  or some other large tube no longer made, then
> the world has one or more less of that tube.  IOW money does not equal
> a tube no longer made.   Small tubes in the 3-500Z size or smaller
> have a better chance.  Anything still manufactured is different.  I
> think the big rare tubes should only be sold at hamfests where
> everyone drives and shipping is the backseat of a car.
>
> 73
>
> Rob
> K5UJ
>