2359glenn | studio
Oct 18, 2019 at 12:49 PM Post #33,136 of 39,994
What temp are you guys using to heat up the pins? Bottom of the pins? side of the pins? All the pins? Inquiring minds would like to know.

I’ll add the soldering iron make and model this evening and what temps I’m using.

For the method - I hold the tube upright with the pins facing down, move the soldering iron on the pins (I put the iron on the side of the pin that’s easily accessible) up and down each second for about 30 - 40 seconds and go all the way around. Never put the soldering iron at the bottom of the pin since that does contain solder and you don’t want to remove it.

I’ve got maybe 75% of the tubes fixed this way or with a second go around.
 
Oct 18, 2019 at 12:52 PM Post #33,137 of 39,994
Sure thing, I'll shoot him a PM. Yeah, lots of options and the most sought after European ones are pricey. But as usual with GEC/MOV, you get what you pay for, they are very good. I am sure prices will go up further as demand increases :/

I tried to buy a quad of the L63 Metal Base MOVs and those puppies went for $500+. I just didn’t have it in me to keep bidding. The singles I’ve see go for $250 - $300 easily. :’(
 
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Oct 18, 2019 at 1:06 PM Post #33,138 of 39,994
I just found my fav combo for my Verite. Haven't tried EL type tubes nor do I have adaptors or any EL tubes, so with the C3g and other tubes that I own -



Brimar tall bottle black glass 6sn7
2x Lorenz C3g
2x TS 6BX7GT
4x Sylvania 6BX7GT
WE422A

Detail, body, smoothness... Lovely sound that the amp is feeding my Verite this evening. Got here by way of taking out the Melz 5-hole tube and trying Ken Rad VT231... Bad combo with the C3g lol.

Hello Usopp...

I am finding the RCA 1633 also pairs well with C3g in D-3 mode (Driver Triplet)

:)
 
Oct 18, 2019 at 1:17 PM Post #33,139 of 39,994
I tried to buy a quad of the L63 Metal Base MOVs and those puppies went for $500+. I just didn’t have it in me to keep bidding. The singles I’ve see go for $250 - $300 easily. :’(

Oof, don't think I would be willing to pay that price. I'd probably stick to the earlier ST-shaped gray glass version, I can't imagine the sound difference is significant. Metal bases are pretty though lol tube hunters love them, myself included :) throw metal base on the end of any tube sale and multiply the price by 2.

Actually I know what I'd do with that money...:heart_eyes:
s-l1600 (4).jpg
 
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Oct 18, 2019 at 1:23 PM Post #33,141 of 39,994
But planing on getting some metal 6J5s for $4 each and see how they sound.
Glenn - did you get anyone from ESRC to respond?! Tried e-mail them several days ago, and no response... I wanted to try el-cheapo 6J5s as well :)
 
Oct 18, 2019 at 1:24 PM Post #33,142 of 39,994
Oof, don't think I would be willing to pay that price. I'd probably stick to the earlier ST-shaped gray glass version, I can't imagine the sound difference is significant. Metal bases are pretty though lol tube hunters love them, myself included :) throw metal base on the end of any tube sale and multiply the price by 2.

Correct me if I’m wrong but there’s a difference right or are they the same? The B65 is different in sound compared to the ECC32/33? To correct myself as well I meant Osram instead of MOV.

Here’s the listing for the tubes. Love the way the way they look.

6CFD3CBA-5BC2-4376-8C24-67E1AA1E82D5.jpeg
 
Oct 18, 2019 at 1:29 PM Post #33,143 of 39,994
Because my American pride is at an all time high, I decided to go "Full America" with some RCA 6BX7GT output tubes.

Listening now to Dimitri Shostakovich - String Quartet No. 8 in C Minor by the Borodin String Quartet in 1963, a very well known work. Anyone who thinks classical is "boring" ought to give this a listen.
Was laughing out loud when I read about your American pride and the Russian composer, all in one breathe... :wink:
 
Oct 18, 2019 at 1:49 PM Post #33,144 of 39,994
Correct me if I’m wrong but there’s a difference right or are they the same? The B65 is different in sound compared to the ECC32/33? To correct myself as well I meant Osram instead of MOV.

Here’s the listing for the tubes. Love the way the way they look.


Hard to say, I have not read any sound impressions of the metal base version. Wish I could see the plates, from what I can see support construction is similar, but my ST shaped have a foil getter whereas the straight metal base have a inverted cup getter. The plate construction of the gray glass ST shaped is different from the later straight glass. ST shaped have a ladder style plate, whereas the clear straight glass have a sort of flattened T-plate.

Here is the best photo I can take of the internals of the gray glass ST shaped:
DSCF5482.jpg

Here are pictures of the metal base and straight clear glass, unfortunately cannot see the plates of the metal base:
s-l1600 (5).jpg L63-CV1067-GEC-NOS-MATCHED-PAIR-VALVETUBE-262907123635.jpg

Here is a current listing for the metal base, get out your wallet!
https://www.ebay.com/itm/One-pair-N...61f07f4b5:g:HVkAAOSwmpJc~yAg&autorefresh=true

Edit: based on other photos I am looking at, I suspect the metal base have the same ladder plates as the ST shaped.

Here is a Marconi branded, smoked, straight glass with inverted cup getter, identical to the metal base except for it has a black base. The top is shown, which does not show the protruding plates of the clear glass and is very similar in construction to the top mica layout of the ST shaped, so more likely ladder plate.

s-l1600 (6).jpg
 
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Oct 18, 2019 at 2:00 PM Post #33,145 of 39,994
So, in conclusion :) the metal base likely sound very similar to the gray glass ST shaped since the internal construction is nearly the same, but cannot confirm absolutely.

Was laughing out loud when I read about your American pride and the Russian composer, all in one breathe... :wink:

:) too on-the-nose? I will say no more.
 
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Oct 18, 2019 at 2:14 PM Post #33,146 of 39,994
Yes, I have owned four others that are whisper quiet, this one is a little excited. Still sounds fantastic, just a wee bit of noise. Figure someone might overlook it to try this tube for a major discount :wink: sections are perfectly balanced too. If someone uses 6AS7G or 6080 primarily, it is basically a non-issue.

Mordy will be able to make it quiet. I gave him a pair of Sylvania 6sn7w black base short tubes that hums and he make it Humphrey. :)
 
Oct 18, 2019 at 2:25 PM Post #33,147 of 39,994
The B65 is different in sound compared to the ECC32/33?

Well I can tell you my GEC B36 sounds different from my Haltron ECC33.

My single GEC B36 in original GEC box came from Stavros and it was brand new unused when I had it. The Haltron ECC33 was also brand new won at an auction from an Aussie seller sometime. I cannot verify if a B36 and B65 sound the same because I don't have a B65. Leftside can but I doubt he wants to use his pair of brand new GEC B65.

Look at this Osram B65 - oozes class. Box is as new condition and rare :)
https://www.ebay.com/itm/B65-OSRAM-...340867?hash=item3d95822ac3:g:YCMAAOSwADVdp-Fk
 
Oct 18, 2019 at 2:53 PM Post #33,148 of 39,994
Well I can tell you my GEC B36 sounds different from my Haltron ECC33.

My single GEC B36 in original GEC box came from Stavros and it was brand new unused when I had it. The Haltron ECC33 was also brand new won at an auction from an Aussie seller sometime. I cannot verify if a B36 and B65 sound the same because I don't have a B65. Leftside can but I doubt he wants to use his pair of brand new GEC B65.

Look at this Osram B65 - oozes class. Box is as new condition and rare :)
https://www.ebay.com/itm/B65-OSRAM-...340867?hash=item3d95822ac3:g:YCMAAOSwADVdp-Fk

The top of that Osram looks to have the same umbrella spoke as the non-smoked version. I will say that I found the B36 to have extended treble compared to the ECC33/35s but (if memory serves me right) a little bottom end heavy.

Thanks for the info UT.
 
Oct 18, 2019 at 2:57 PM Post #33,149 of 39,994
Oct 18, 2019 at 3:05 PM Post #33,150 of 39,994

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