Calibrating a B&K tube tester

[StuartB]

I have a nice B&K Dyna-Jet 606 tube tester. It is in good shape and has never been banged around. It seems to work well, and reliably measures tube strength......etc.

Do I need to worry about calibration or recapping it. I pulled to top cover off and found 2-3 caps. There is no visual evidence of them leaking or failing.

I was also surprised to find a tube under the cover. I guess I just didn't think of a tube tested using a tube...I am guessing it is a rectifier....I didn't verify the tube type.

Any thought or input would be appreciated.

 

[NOSValves]

I have a nice B&K Dyna-Jet 606 tube tester. It is in good shape and has never been banged around. It seems to work well, and reliably measures tube strength......etc.

Do I need to worry about calibration or recapping it. I pulled to top cover off and found 2-3 caps. There is no visual evidence of them leaking or failing.

I was also surprised to find a tube under the cover. I guess I just didn't think of a tube tested using a tube...I am guessing it is a rectifier....I didn't verify the tube type.

Any thought or input would be appreciated.

Well an out of calibration piece of test equipment is about as useless as a gun with no ammunition... so the answer is yes to both.

 

[bobabode]

I have a nice B&K Dyna-Jet 606 tube tester. It is in good shape and has never been banged around. It seems to work well, and reliably measures tube strength......etc.

Do I need to worry about calibration or recapping it. I pulled to top cover off and found 2-3 caps. There is no visual evidence of them leaking or failing.

I was also surprised to find a tube under the cover. I guess I just didn't think of a tube tested using a tube...I am guessing it is a rectifier....I didn't verify the tube type.

Any thought or input would be appreciated.

This site has some info but not the calibration procedure for your model, as far as I could tell.
http://www.tone-lizard.com/B&K.html

 

[Gary Kaufman]

There isn't much to calibrate on the B&K 606 - it's a pretty simple emissions tester.

The grid emissions and short function are adjustable - they require a 20meg and 1meg resistor. The procedure is explained in the manual.

There isn't an adjustment for emissions - just make sure the 47 ohm resistor is within 5%.

I recall the 6BN8 is for the grid emission test.

There are actually 4 caps - I'd replace the two electrolytics - a 200uf/4v part (use a 220v/16v cap) and a 5uf/250v (us a 4.7uf/250v cap) and leave the two disc ceramic caps alone (they rarely fail).

The manual etc are online at http://www.k7jrl.com/pub/manuals/b&k/606-2/

- Gary

 

[StuartB]

Thank you. That is exactly what I needed.....I had the tube setting book but not the tester's owner manual.

Perfect.

There isn't much to calibrate on the B&K 606 - it's a pretty simple emissions tester.

The grid emissions and short function are adjustable - they require a 20meg and 1meg resistor. The procedure is explained in the manual.

There isn't an adjustment for emissions - just make sure the 47 ohm resistor is within 5%.

I recall the 6BN8 is for the grid emission test.

There are actually 4 caps - I'd replace the two electrolytics - a 200uf/4v part (use a 220v/16v cap) and a 5uf/250v (us a 4.7uf/250v cap) and leave the two disc ceramic caps alone (they rarely fail).

The manual etc are online at http://www.k7jrl.com/pub/manuals/b&k/606-2/

- Gary