[ARC5] [Milsurplus] Tube Tester

[Dennis Monticelli]

Thanks for passing this along.  Yup, exact same unit.  This particular model
was popular with the FAA and mine has the stamp of Lancaster, CA on it.

FYI.  The 752 does not have a Good/Bad scale.  It reads directly in
transconductance.  The seller was obviously converting the reading into a
percentage and comparing it with another tester that had Good/Bad percentage
as its indicator.  I'm not sure if that's a fair comparison or not.  In any
case, you don't have to ship the thing off to an audiophile tube technician
for $200.  I did the calibration myself and it was easy.  Before doing that,
however, the two rectifier tubes should be tested first.  All the better
Hickoks calibrate pretty much the same way because the circuit architecture
is the same.  You can even use a manual for one model to inform you how to
correctly the calibrate your different model.  There are no 'lytics in the
752, but there are a few plastic encapsulated paper caps.  I replaced those
i mine but subsequent tests with a quality cap tester revealed that they
were just fine.  These are not old testers so component deterioration is not
as serious as with some other testers.

Dennis AE6C


On Mon, Jul 13, 2009 at 1:57 AM, Roy Morgan <k1lky at earthlink.net> wrote:

>
> On Jul 12, 2009, at 11:12 PM, Dennis Monticelli wrote:
>
> > I have but one tube tester...  It's the Hickok 752A.... I don't know
> > what
> > 752's go for these days.
>
> There is one for sale now on eBay.  The auction closes July 21st.
>
> Item number: 190320892447
>
> Roy
>
> Roy Morgan
> k1lky at earthlink.net
> 529 Cobb St.
> Groton NY, 13073
> Home: 607-898-3607
> Cell: 301-928-7794
>
>
>
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>