Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Woo Audio Amp Owner Unite
New Posts  All Forums:Forum Nav:

Woo Audio Amp Owner Unite - Page 1641

post #24601 of 30965

Re: United Electronic 596 rectifiers

 

Yesterday, my seller acquired five used rectifiers, JAN-596/USAF-596. Looks like they were pulled from equipment. Likely a RF Transmitter. $35ea. Neither tested or measured but should be good and will back any non-performing tube.

 

I am still in the hunt for new ones. However, if anyone needs a stop-gap measure...

 

809465

post #24602 of 30965

Thanks for that SO, yet I'd prefer a brand new one :)
 

post #24603 of 30965
Quote:
Originally Posted by Ultrainferno View Post

Thanks for that SO, yet I'd prefer a brand new one :)
 

 

I know what you mean. I too, want my Glass to be new. So new in fact, it looks suspicious! biggrin.gif

post #24604 of 30965

Hello everyone :)

 

I just ordered a WA2 and can't wait to get my hands on it. :)

 

I am however a bit confused about tube matching... would someone be able to help? Basically, I understand that the WA2 has 2 power tubes, 2 rectifier tubes and 4 driver tubes. If I were to buy replacement driver tubes, would I need to find a quad matched set? Or would i simply need  2 individual matched pairs? (I guess two separate matched pairs may include tubes that are matched but the the two pairs might not be themselves matched)..... confusion...

 

Thanks in advance for any advice you can offer

 

Yiannis
 

post #24605 of 30965
Quote:
Originally Posted by Yiannis1974 View Post

Hello everyone :)

 

I just ordered a WA2 and can't wait to get my hands on it. :)

 

I am however a bit confused about tube matching... would someone be able to help? Basically, I understand that the WA2 has 2 power tubes, 2 rectifier tubes and 4 driver tubes. If I were to buy replacement driver tubes, would I need to find a quad matched set? Or would i simply need  2 individual matched pairs? (I guess two separate matched pairs may include tubes that are matched but the the two pairs might not be themselves matched)..... confusion...

 

Thanks in advance for any advice you can offer

 

Yiannis
 

 

2+2+2 would be better. Matched pairs are always good imo ;)

post #24606 of 30965
Quote:
Originally Posted by Ultrainferno View Post

 

2+2+2 would be better. Matched pairs are always good imo ;)


Totally understand that two tubes need to be matched .. but would a matched pair itself need to be matched with the second pair as well?

post #24607 of 30965
Quote:
Originally Posted by Yiannis1974 View Post


Totally understand that two tubes need to be matched .. but would a matched pair itself need to be matched with the second pair as well?


Sorry... I can see I made a mistake in my previous posts. The WA2 actually needs 2 driver tubes, 2 power tubes and 2 rectifiers. Matched pairs now make sense. Thank you and sorry for the confusion

 

:-)

post #24608 of 30965
Quote:
Originally Posted by Yiannis1974 View Post


Totally understand that two tubes need to be matched .. but would a matched pair itself need to be matched with the second pair as well?

 

You've lost me. The WA2 has 2 rectifiers, 2 driver tubes and 2 power tubes. Just match the drivers with each other, just like the power tubes. I wouldn't match the rectifiers, but that's me.

You can not match drivers-rectifiers-power tubes with each other, as far as I know

post #24609 of 30965
Quote:
Originally Posted by Ultrainferno View Post

 

You've lost me. The WA2 has 2 rectifiers, 2 driver tubes and 2 power tubes. Just match the drivers with each other, just like the power tubes. I wouldn't match the rectifiers, but that's me.

You can not match drivers-rectifiers-power tubes with each other, as far as I know


I know, I confused things a lot :-(. Sorry about that, I got things cleared up now. Many thanks

post #24610 of 30965

Hopefully this doesn't confuse you more, but be careful when ordering "matched pairs."  Some vendors think matched pairs simply have the same date codes of manufacture.  But, true matched pairs test the same on a tube tester.

 

Quote:
Originally Posted by Yiannis1974 View Post


I know, I confused things a lot :-(. Sorry about that, I got things cleared up now. Many thanks

post #24611 of 30965
Quote:
Originally Posted by hodgjy View Post

Hopefully this doesn't confuse you more, but be careful when ordering "matched pairs."  Some vendors think matched pairs simply have the same date codes of manufacture.  But, true matched pairs test the same on a tube tester.

 

 

In reality, true matched pairs need to match in more ways than test results.  However, few, if any, of us have the ability to measure the other characteristics.

 

If this is your go-to pair, buy from the well known and respected dealer.  Let him know what equipment you have.

post #24612 of 30965
Quote:
Originally Posted by Silent One View Post

Re: United Electronic 596 rectifiers

 

Yesterday, my seller acquired five used rectifiers, JAN-596/USAF-596. Looks like they were pulled from equipment. Likely a RF Transmitter. $35ea. Neither tested or measured but should be good and will back any non-performing tube.

 

I am still in the hunt for new ones. However, if anyone needs a stop-gap measure...

 

809465

I would suppose that they are new only used to test the military equipment when it was manufactured.

Probably pulled from equipment that was never used.

post #24613 of 30965

This leaves me feeling rather good about 'em! Might have to get a back up, for the back up that's backing up the main rectifier. Can never be too comfy, I suppose. biggrin.gif

post #24614 of 30965
Quote:
Originally Posted by dminches View Post

 

In reality, true matched pairs need to match in more ways than test results.  However, few, if any, of us have the ability to measure the other characteristics.

 

If this is your go-to pair, buy from the well known and respected dealer.  Let him know what equipment you have.

 

David if they have the same construction, batch, date code and the same/close plate current then they can be considered as matched.

 

A graph of plate current versus voltage will be the best test, the Sofia tester is an excellent tool.

 

Here is the graph of one of my pairs:

 

 

 

post #24615 of 30965

Stavros, what tester is that?

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Woo Audio Amp Owner Unite