Hickok Model 752A Tube Tester

[SpeakerFreak95]

Nice tester, I rercently found a perfect Conor tube tester in a back alley, It tests several tube types including the NuVistor tube!

[AllAmericanFiveRadio]

@SpeakerFreak95

Great find! Old test equipment is going to be more collectable in the future. Compared to radios, TVs, and HI FI equipment, there was far less test equipment made.

[HD7100]

Very nice tester. I'd love to have one like it. Gary

[AllAmericanFiveRadio]

Thanks HD7100

[nckeller]

Rick,

Thanks for putting this up on YouTube. Nice tester.

It's amazing how well these old electronics hold up, when they are taken care of.

Kind Regards,

Russ

[togst]

Nice piece of equipment you got there! Still haven't found a tube tester for my self, seem to be quite hard to come by here in Norway, and pricey. Have asked around the local electronic repair shops, but they threw that stuff out when solid state electronics took over in the late 70s. Wonder how much it would cost to import one from the US? Weight is probably the biggest issue.

Regards,

Frank

[AllAmericanFiveRadio]

Thanks togst

Hey Frank

It is a shame that they got thrown out. I bet you could get some leads from some Ham Radio clubs. Maybe an antique radio club too. It has taken me many years to collect what I have, at least twenty five years or more.

Regards,

Rick

[RapperBC]

Love this one. I have a HIckok 600A. It's wonderful! I was "taught" how to use it by someone who sorta knew what they were doing, on another 600A- but they didn't have a manual. However they knew enough to know how not to damage a tube, and how to read transconductance for gain matching, etc.

After finding a manual online it became even more useful. The first time it found a shorted rectifier, it paid for itself in repair costs.

Isn't this one identical to a TV-7?

Thanks! Great video, again!

[AllAmericanFiveRadio]

Thanks RapperBC

It is close, I would like find one. After I made this video I notice the lettering on the bottom of the calibration sticker, G S F C - N A S A. Goddard Space Flight Center NASA

[RapperBC]

Well, that's interesting... I wonder what test equipment (or other equipment) they owned that would've required a tube tester. I can imagine some Tek scopes in which they'd probably want to match the gain of, say, the two sides of a twin-triode in the preamplifier... who knows what else? Very interesting find. I wish I had some old NASA gear. ~{8^>)

[AllAmericanFiveRadio]

@RapperBC

You name it, navigation, radio, transmitter, telemetry, and computer equipment all are full of tubes in 1966.

[CameramanLink]

I wonder how much it cost new? It has really good workmanship! I have a tube tester sitting on a shelf somewhere, but I never figured out how to use it completely. As I recall, I tried testing a good tube (it worked in a circuit) and it said it was bad. Maybe I didn't have it set right. I should learn to use one!

[AllAmericanFiveRadio]

Thanks CameramanLink

This tube test cost about $400 in 1963-66. I just noticed that on the calibration sticker is says NASA.

[AllAmericanFiveRadio]

@CameramanLink

Goddard Space Flight Center NASA 

[wolfhawg]

Thanks Dave for another great video.

[AllAmericanFiveRadio]

Thanks wolfhawg

[GeoN0JRJ]

That is a really nice tester! Thanks for sharing.

[AllAmericanFiveRadio]

Thanks GeoN0JRJ

[UmaBlinky]

Very nice indeed - BUT - I would not want to test a lot of tubes with it - I would make too many mistakes with all those switches.

[AllAmericanFiveRadio]

Thanks UmaBlinky

[joernone]

Rick,

I'm glad you made this one. You'll see why in one of my future vids.

Thanks.

Regards,

John

[AllAmericanFiveRadio]

Thanks joernone

Hey John,

I should not admit this but I did not know that this was a NASA tube tester until I watched my own video. It clearly says NASA on the calibration sticker. Of course that is not as bad as misplacing a Philco Tombstone.

Regards

Rick

[douro20]

@AllAmericanFiveRadio

Speaking of misplacing a Philco tombstone, a person up the road from where I live has a floorstanding one which was repainted lime green!

[AllAmericanFiveRadio]

@joernone

Goddard Space Flight Center NASA