[DecentLevi]

Thanks to a recommendation from someone here recently I won an auction for this pair of metal RCA VT-94 (6J5) for only $5. I take it this metal version is comparable to the Sylvania glass VT-94D's with metal base - or at least a good 6J5?

 

[2359glenn]

Can I use these in the OTL?

You would have to get a 5693 to C3g adapter

https://www.ebay.com/i/312869750286

Don't even care how they sound - they look so cool...

 

[leftside]

5693 to C3g adapter for the 300B amp as well? I presume not.

 

[GDuss]

Thanks to a recommendation from someone here recently I won an auction for this pair of metal RCA VT-94 (6J5) for only $5. I take it this metal version is comparable to the Sylvania glass VT-94D's with metal base - or at least a good 6J5?

I've been having really good luck lately with these metal RCA 6J5s, especially the VT-94s. I have quite a few of them now, and some Ken Rad and TS 6J5s as well. Having said that, I'm currently listening to 4x 6BX7s (because I'm 2 short of a 6-pack ) and a pair of metal RCA 6C5s (which are surprisingly quiet with no jumper in the adapter). I tried these 6C5s a few nights ago with a pair of TS 5998s and they were quiet, so I decided to up the amplification to 6BX7s and see how it did. They're still great. I got these 6C5s at 4 for $6 and they could give way more expensive tubes a run for the money. Like I said a month ago or so, I probably shouldn't talk about this as if we all start saying it, prices will go up. But there are a lot of them around right now, much cheaper than the 6SN7s.

Thanks to @mordy and @JazzVinyl for suggesting these. @L0rdGwyn too, for making the convincing statement of changing the C3g slots to 6J5 (and then selling his 6SN7s).

And in the spirit of @chrisdrop , this post is brought to you by Soulive's album "Live at the Blue Note Tokyo". Sorry Chris, no Tidal link.

 

[2359glenn]

5693 to C3g adapter for the 300B amp as well? I presume not.

Yes that tube will work in the 300B amp but I have no idea how it sounds. think it is similar to a 6SJ7.

 

[GDuss]

Now I'm listening to Jimmie Vaughan Trio, Live at C-Boy's. Sounds like I'm in the club while this is being recorded. The only way I know that I'm not actually there is that the drinks are cheaper, and there is no line for the bathroom .

 

[UsoppNoKami]

FYI, to the best of my knowledge, Siemens never manufactured the EL11. To my eyes, these look like Loewe Opta production.

Yes, Loewe Opta was a Philips subsidiary with manufacturing facilities located in Berlin-Steglitz. However, it appears that Philips did not use the Loewe Opta brand after acquiring the company in the mid 1950's. Most of their EL11 production was sold under the Valvo brand.

Nice mate, thanks for the info

 

[DecentLevi]

I've been having really good luck lately with these metal RCA 6J5s, especially the VT-94s. I have quite a few of them now, and some Ken Rad and TS 6J5s as well. Having said that, I'm currently listening to 4x 6BX7s (because I'm 2 short of a 6-pack ) and a pair of metal RCA 6C5s (which are surprisingly quiet with no jumper in the adapter). I tried these 6C5s a few nights ago with a pair of TS 5998s and they were quiet, so I decided to up the amplification to 6BX7s and see how it did. They're still great. I got these 6C5s at 4 for $6 and they could give way more expensive tubes a run for the money. Like I said a month ago or so, I probably shouldn't talk about this as if we all start saying it, prices will go up. But there are a lot of them around right now, much cheaper than the 6SN7s.

Thanks to @mordy and @JazzVinyl for suggesting these. @L0rdGwyn too, for making the convincing statement of changing the C3g slots to 6J5 (and then selling his 6SN7s).

And in the spirit of @chrisdrop , this post is brought to you by Soulive's album "Live at the Blue Note Tokyo". Sorry Chris, no Tidal link.

Cool post... but you said you've been having especially good luck with the metal VT-94s then went on to talk about the RCA 6C5 - this threw me for a curve ball. Which one did you prefer and why?

 

[GDuss]

Cool post... but you said you've been having especially good luck with the metal VT-94s then went on to talk about the RCA 6C5 - this threw me for a curve ball. Which one did you prefer and why?

At this point I doubt I could distinguish a metal RCA 6C5 from a metal RCA 6J5 in a blind listening test. Maybe they sound different but I can't say that yet. So I'm basically putting them together in the same category of enjoyment vs price. And yes, I've had good luck with the VT-94 versions of the 6J5, and the VT-65 versions of the 6C5.

As has been mentioned already on this thread, I'm not sure if the Ken Rad and Tung Sol metal 6J5s I have are actually made by KR and TS, or whether they're just RCAs, but they're good too.

Have you listened to yours yet? If so, what do you think?

 

[DecentLevi]

Great, so these are all in the same league of performance. Nope I'm just building a nifty collection of tubes (in addition to my current for the Euforia tube amp) in anticipation for my upcoming GOTC SET amp (Glenn output-transformerless single ended triode) GEL3N-based amp.

Anyone got to hear my latin music on the last of the previous page?

 

[Zachik]

Yes that tube will work in the 300B amp but I have no idea how it sounds. think it is similar to a 6SJ7.

Just to clarify:
I was only drawn to these due to their REALLY cool red color!! No idea how they sound
From a quick search online - the 5693 are the military rugged version of 6SJ7, so I assume they should sound somewhat similar.

Glenn - while waiting for my masterpiece (a.k.a. 6EL3N), I am becoming too bored for my own good...

 

[chrisdrop]

After @mordy's enthusiasm for the RCA metal encased 6J5s last week, a few days back I put these in. I am glad to see that others here are also enjoying them.



My general conclusion is that they are every bit as good as the Sylvania GTs that I had in last week. I am really having a hard time .. finding 6J5s that aren't really pleasing. I be surprised if there are not more @L0rdGwyn style c3g -> 6J5 amp requests in the future.

 

[Monsterzero]

Just to clarify:
I was only drawn to these due to their REALLY cool red color!! No idea how they sound
From a quick search online - the 5693 are the military rugged version of 6SJ7, so I assume they should sound somewhat similar.

Glenn - while waiting for my masterpiece (a.k.a. 6EL3N), I am becoming too bored for my own good...

I believe UntilThen used those reds in his old La Figaro 339 and liked them

 

[whirlwind]

Just rolled in the 53KU this morning.....listening to Peter Frampton Band - All Blues with LCD-3 pre-fazor

 

[L0rdGwyn]

Yes, Loewe Opta was a Philips subsidiary with manufacturing facilities located in Berlin-Steglitz. However, it appears that Philips did not use the Loewe Opta brand after acquiring the company in the mid 1950's. Most of their EL11 production was sold under the Valvo brand.

Speaking of of Loewe Opta, I'm continuing to expand my REN904 collection with this pair. Pre Philips acquisition with Opta branding, pretty cool.