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2359glenn | studio - Page 238

post #3556 of 10868
Quote:
Originally Posted by Ultrainferno View Post

Quote:
Originally Posted by Silent One View Post

 

Great to hear of your safe journey. Give rosgr63 a shout from all of us! Surprisingly, my blood pressure improved 20 points just by looking at the Mediterranean. rolleyes.gif Maybe I need a Vacay...

 

No you need the WA5, remember? biggrin.gif

LMAO!!!  Yes....A WA5...Fully maxed out!  evil_smiley.gif

 

Welcome aboard Marco!

post #3557 of 10868
Thread Starter 

Guess, I'm going to need a job then. Runnin' out of things to sell...rolleyes.gif

post #3558 of 10868

Does anyone know where/what the Raytheon "F6" date code stands for? Can't seem to find it on the www.

Thanks!

post #3559 of 10868
Quote:
Originally Posted by dminches View Post

www.tubesound.com

 

I noticed that Bob has the  Sencore TC162 for sale. He rarely has a Sencore for sale during the time I know him.

post #3560 of 10868
Thread Starter 
Quote:
Originally Posted by Ultrainferno View Post

Does anyone know where/what the Raytheon "F6" date code stands for? Can't seem to find it on the www.

Thanks!

 

Which Ray do you have and is there any other info printed?

post #3561 of 10868

Thank you very much for all your friendlinesswink.gif

Hope to stay with you for a very loooong time dt880smile.png

post #3562 of 10868
Quote:
Originally Posted by Silent One View Post

 

Which Ray do you have and is there any other info printed?

 

RK60 -1641 printed on the glass

Only "F6" in red on the base...

 

Oh the mystery :)

post #3563 of 10868
I believe that means June 1948 (F=1948, 6= June)
post #3564 of 10868
Quote:
Originally Posted by Skylab View Post

I believe that means June 1948 (F=1948, 6= June)

 

thanks Rob, that's based on the RCA codes then, right?

That would make it the oldest tube in my collection!


Edited by Ultrainferno - 6/29/13 at 1:32pm
post #3565 of 10868
It is indeed based on the RCA codes, but RCA wasn't the only company to use them IIRC, and it would be the right period. The RK60 was introduced in 1948, if my information is correct (which of course when we are talking about 75 year old vacuum tubes is a bit of a leap of faith biggrin.gif )
post #3566 of 10868
Quote:
Originally Posted by dminches View Post

Glenn, glad you and your g/f made it there safely.  Now, can we open the box?

 

Haha, I am waiting to see inside the box as well!!!

post #3567 of 10868
Thread Starter 
Quote:
Originally Posted by Skylab View Post

I believe that means June 1948 (F=1948, 6= June)

 

Agree - a tube seller got back to me earlier with the same info except he could only state 1940s but June.

post #3568 of 10868
Quote:
Originally Posted by john57 View Post

 

I noticed that Bob has the  Sencore TC162 for sale. He rarely has a Sencore for sale during the time I know him.

I'm tempted to buy it too, but ideally I'd want a single tester to cover all the tube types I have and the TC162 does not have a UX4 socket for testing 45/2A3 tubes.

post #3569 of 10868
Quote:
Originally Posted by Xcalibur255 View Post

I'm tempted to buy it too, but ideally I'd want a single tester to cover all the tube types I have and the TC162 does not have a UX4 socket for testing 45/2A3 tubes.

I understand, that's why I also have the Precision 620 tube tester from the Navy with all the adapters included and can test the very old tubes and the modern tubes as well. The Precision 620 I have which has all the updates can test both sides of the 3DG4 tube where the Sencore can not as a example. My Precision 620 version has one of the widest range of tubes that can be tested. I have a special updated tube chart for this tester and it was very easy to work on and everything works on it and I just paid $91 for it. The JACKSON 658-A which I had on the other hand was very difficult to work on and 2/3 of the substandard parts has been replaced with better parts but never quite work perfectly. The Jackson can test tubes at a higher voltage levels and more likely to catch tubes that could arc over. I wanted to get the Heathkit TT-1 but could not find one in the condition and price that I was willing to pay. Here is a youtube on restoring the Heathkit TT-1 which shows some of the work involved to restore this tube tester. http://www.youtube.com/watch?v=EJa9nJHttSc

I ended up keeping the Sencore TC28 and the Precision 620. Both required some restorative work and the Sencore was way off in calibration but I successfully restore my Sencore to factory specs.


Edited by john57 - 6/29/13 at 4:26pm
post #3570 of 10868

The only thing with tube testers is they don't run the tubes like they are run in the amp.

 

No tube tester I know of is going to supply the 800 volts plate to plate that is supplied to the rectifier tube in ultras amp.

 

So it can still test good and blow up in the amp this goes for output tubes as well. 

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