[leftside]

Yes, I've also read elsewhere they are Brimar. I already have a couple.

 

[attmci]

Although labeled Haltron, I believe these were manufactured by Brimar. And I would agree, IMHO, this is a very good rectifier.

I still not 100% convinced these are Brimar. Tons of similar tubes on the market. We had discussed offline before (recall those SICTY 5R4GY from Italy?).

It also has an O-getter version.

https://www.ebay.com/itm/CV717-5R4G...467618&hash=item5698c38756:g:wssAAOSw5UZY~06-

See the date on the box?

But all these brands (Brimar, Marconi/MWT, Bendix) were acquired by the Thorn Electrical Industries (later merged with EMI in 1979).

BTY, I promised Matt that I won't buy any more tubes. LOL

 

[gibosi]

I have seen this tube with rectangular getters, halo getters and round foil getters, and the rectangular getters are likely the earliest. And to my ears, this tube sounds virtually identical to the older Brimar shown on the left, below. Tubes manufactured in the same factory tend to sound the same. And conversely, tubes manufactured in different factories, owned by different companies, tend to sound different.

As for the date on the box, typically the box-date indicates the date the tube was labeled and boxed. It rarely indicates the manufacturing date. After all, Haltron never manufactured a single tube. They bought vacuum tubes from various sources, labeled and boxed them, and offered them for sale. But these particular tubes were likely manufactured long before and sat in a warehouse for quite some time before Halton purchased them.
So we will have to agree to disagree. My ears tell me that these were manufactured by Brimar.

 

[Oskari]

Marconi, Osram and GEC are all the same company

But all these brands (Brimar, Marconi/MWT, Bendix) were acquired by the Thorn Electrical Industries (later merged with EMI in 1979).

British industrial history is pretty complicated. This site is quite good

• https://www.gracesguide.co.uk/

but it does take some digging. See, e.g., https://www.gracesguide.co.uk/GEC.

 

[UntilThen]

BTY, I promised Matt that I won't buy any more tubes. LOL

You have my blessings to buy more tubes.

Even I am tempted to buy a rectifier but I wouldn't know what to do with it except to admire it.

 

[UntilThen]

Quad 5998 with boost switch on. Incredible performance by the uniquely special GOTL. Arnold I'll let you tell us what you hear what you get your quad 5998.

 

[yates7592]

Just wondering, if using 6080 power tubes in OTL, how many are needed and in which socket (adapter?). Thanks.

 

[whirlwind]

You will need a pair of 6080 power tubes and you will not need an adapter, just put them in the power sockets

 

[2359glenn]

And another one - 5V rectifiers - advice please as to best ones to start out with beyond HEXFRED plug-in.

I will be giving you a 3DG4 rectifier with the amp.
You might concentrate on getting six 6BX7s a couple of good 6AS7s and a pair of C3g's
A 1940s RCA 1633/25SN7 will also come with the amp you can use that and put off buying the C3g's for awhile

 

[lukeap69]

Quad 5998 with boost switch on. Incredible performance by the uniquely special GOTL. Arnold I'll let you tell us what you hear what you get your quad 5998.

About a week more and the 5998 team will be here to meet Darna. I know they will sound great!

 

[yates7592]

I will be giving you a 3DG4 rectifier with the amp.
You might concentrate on getting six 6BX7s a couple of good 6AS7s and a pair of C3g's
A 1940s RCA 1633/25SN7 will also come with the amp you can use that and put off buying the C3g's for awhile

Good advice as usual! I have 6BX7's on order, and nearly pulled on C3g's. Just mulling over other options (there are so many...).

 

[2359glenn]

Good advice as usual! I have 6BX7's on order, and nearly pulled on C3g's. Just mulling over other options (there are so many...).

So many options.
That is the fun of this amp!!

 

[JazzVinyl]

Good advice as usual! I have 6BX7's on order, and nearly pulled on C3g's. Just mulling over other options (there are so many...).

What will you name your amp, yates?

 

[rnros]

Just wondering, if using 6080 power tubes in OTL, how many are needed and in which socket (adapter?). Thanks.

If your GOTL is the version with the Lundhal transformer and 6 power sockets, you can use 4 6080s.

If you want to sample a 6080 without spending too much,
here's a decent JAN 6080WC ceramic base you can get for $2.99, if you buy 10, $4.50 each if you buy less than 10:
http://www.partsconnexion.com/6080.html
(PartsConnexion sells these on eBay also, with listings ranging from a pair at $18 to a thousand at $3000.)

This is a Philips ECG from 8/85. Manufactured in the Sylvania plant. Has nothing to do with the European production.
Philips bought Sylvania in the early '80s, with this Sylvania plant continuing to manufacture tubes until '87.

Typical price range for this tube would be ~$9-$16. Langrex sells it for 12GBP (~$16):
https://www.langrex.co.uk/products/6080wc-jan-philips-ecg-nos-valvetube/

 

[UntilThen]

Woke up this morning and it's one month anniversary of having GOTL. Last year I set out to assemble a stereo system I could enjoy with speakers. I got that and for a while, speakers became my primary means of listening to music. Then GOTL came and now the pendulum has swung back to head-fi. I've been using this tube amp and my headphones mainly.

As Glenn said, this is a fun amp with so many tube options. It's not just fun, it sounds like a Rolls Royce. The hard part is deciding which tubes to use daily.