[UntilThen]

Why does he dislike GE? That's the 1st company I work in.

 

[leftside]

@2359glenn who's next in line for a build?

 

[UntilThen]

Glenn needs to recruit me as an apprentice now.

 

[Xcalibur255]

The one I have is clearly marked 5V4G, but from your comment, it would appear that the Brimar 5V4G and 5Z4G plates look very similar. As I don't have an amp that can use the 5Z4G I don't own one.... (But the 5Z4G should be fine in Glenn's EL3N amp.)

The published vdrop numbers I have are 25 for the 5V4G and 20 for the 5Z4G, versus 60 for the 5Y3, so it appears your memory is correct.

I have a 5Z4G and the plates look just like the one in your photo. Looks like something to keep an eye on for buyers interested in these tubes.

 

[Hansotek]

It appears that Tung-Sol and RCA did not begin to manufacture 6BL7 and 6BX7 until around 1960. On the other hand, Sylvania and GE manufacture dates back to the early 1950's. So a large number of the Tung-Sol and RCA you will see were in fact manufactured by either GE or Sylvania. As Whirlwind points out, it is necessary to go by construction, rather than the name painted on the tube, when purchasing these tubes.

I have yet to acquire enough Toshiba to try them. And... mixing different brands is against my religion... lol

I actually mixed a pair of Sylvania 6BL7s and a pair of RCA 6BX7s one time and I was surprisingly good.

 

[2359glenn]

Glenn needs to recruit me as an apprentice now.

Are you ready to start?

 

[Hansotek]

Are you ready to start?

Dang! Got room for two?

 

[UntilThen]

There's always room for 2 apprentices so I can blame the other apprentice.

I need to complete Soldering For Dummies real quick.

So whose OTL shall I start with first?

 

[mordy]

You could start practicing on an OTL using a quad of Tung Sol Graphite Plate 7242 tubes as powers.
But wait, first I have to call in an electrician to install a 30A line to my listening room.....

 

[2359glenn]

So whose OTL shall I start with first?[/QUOTE]

Mordy's is a good start. All you have to do is copy yours.
Need the first giney pig.

 

[2359glenn]

You could start practicing on an OTL using a quad of Tung Sol Graphite Plate 7242 tubes as powers.
But wait, first I have to call in an electrician to install a 30A line to my listening room.....

Get 15 amp 240 volt . 240 volt in the US is balanced power cancels hum. Most equipment is multi voltage now.
I have 240 behind my stereo equipment

 

[UntilThen]

Need the first giney pig.

Haha guinea pig. Nobody wants to be my guinea pig.

Such a lovely tone from GOTL running TS 12SL7 bgrp and 6 x 6bx7gt. I think I will get the Tung Sol 6su7gty bgrp from LJ. I just need to hear this tube.

 

[UntilThen]

That's how expensive a NOS pair of TS 6sn7gt vt-231 bgrp cost.
https://www.ebay.com/itm/Tung-Sol-V...um-tubes-matched-and-guaranteed-/113015654936

 

[2359glenn]

Crazy expensive
The 12SN7 is so much cheaper.
The beauty of being to use 12 v and 25 v tubes

 

[2359glenn]

Haha guinea pig. Nobody wants to be my guinea pig

Nobody minds a small fire.