[R-390] Sources for HP410C AC Probe

[2002tii]

David wrote:

>Was that a 1,2,3,or 4 reel 35mm film can you built those in?
>I had to chuckle at that, my dad ran a trucking outfit way back when
>delivering 35mm film all over Texas.

We were po boys, we only had the single cans.  You could just squeeze 
a 6X5 probe into one can if you were careful.  If you had an EA53 
(the tube that HP used), you had to cut out the ends and splice cans 
together.  I built several probes into the bodies of trashed Neumann 
microphones (we had a pile of those after one client found out the 
hard way that they weren't up to rock-n-roll on the road).

By the way, you don't have to use an EA53 for most things you'll want 
to do -- a 6X5 will work fine.  Note that most HP 11036A probes that 
you find on the market today will need a new EA53, so make sure you 
know where to find one (and budget accordingly) before buying a used probe.

Best regards,

Don