What are these voltage regulator tubes ? !!

If they glow, this is the place to be
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IslandPink
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What are these voltage regulator tubes ? !!

Post by IslandPink » Sun Nov 15, 2015 10:50 pm

Seen at ETF2015, courtesy of Thomas Mayer at Vinyl Savor :
http://vinylsavor.blogspot.co.uk/2015/1 ... rt-14.html
http://3.bp.blogspot.com/-d-mMzeT0rAA/V ... winner.jpg

Please tell me what these are, so I can get some.
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Re: What are these voltage regulator tubes ? !!

Post by jack » Sun Nov 15, 2015 11:03 pm

The small one is a Philips 4687 voltage stabilser - 93V @ 10 to 30mA

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Re: What are these voltage regulator tubes ? !!

Post by IslandPink » Sun Nov 15, 2015 11:22 pm

Superb - thanks !
After more reading through Thomas's many postings on ETF, I got as far as Philips. ( I want the bigger one :bounce: )
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Re: What are these voltage regulator tubes ? !!

Post by jack » Tue Nov 17, 2015 10:39 pm

The bigger one is a 4357 - 95V @ 10 to 40mA

The datasheets are on Frank's site

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Re: What are these voltage regulator tubes ? !!

Post by IslandPink » Tue Nov 17, 2015 11:13 pm

Cheers !
Nice, but not very common on EBay ...
Some of these found , but they are not as cool :(
http://www.ebay.co.uk/itm/ROHRE-PHILIPS ... _877wt_862
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Re: What are these voltage regulator tubes ? !!

Post by slowmotion » Wed Nov 18, 2015 5:48 pm

I was there, and they are really weird in real life. And ultra cool.
- Jan -

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Re: What are these voltage regulator tubes ? !!

Post by IslandPink » Wed Nov 18, 2015 6:45 pm

Excellent - didn't know you'd been there Jan . What were the highlights ?
Did you get a listen to Bjorn and Thomas's nice 200Hz mid-horn with the 288B ?
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Re: What are these voltage regulator tubes ? !!

Post by slowmotion » Wed Nov 18, 2015 7:05 pm

Thomas and Bjørn are friends of mine, and we traveled down to Denmark together.
So naturally I spent the most time in the norwegian room.
By saturday night everything was adjusted to fit the room and we also were lucky enough to
have Charles King connect his Stellavox reel to reel player to the system.
Some of his tapes with live recordings of Count Basie were just unbelievably good.

Re the voltage reg tubes, they are really cool looking, so if you have the chance to get some of them, don't hesitate! :)
- Jan -

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Re: What are these voltage regulator tubes ? !!

Post by IslandPink » Wed Nov 18, 2015 9:48 pm

Will definitely be on the lookout for those.
There looked to be some nice equipment there this year - good analogue front-ends for instance.
What was the data/drivers on those mad wooden horns on the 'House' system ?
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Re: What are these voltage regulator tubes ? !!

Post by slowmotion » Thu Nov 19, 2015 12:14 pm

The "house system" was the creation of Il Bahnsen of http://www.bahnsenengineering.dk
This was his TV-system, believe it or not. I don't know much about the driver he used,
except that he used 6 ( or 8 ) 12" drivers for bass, a cone driver for midrange and a ribbon for the treble.
- Jan -

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Re: What are these voltage regulator tubes ? !!

Post by simon » Thu Nov 19, 2015 12:52 pm

TV system? That's just showing off :-). So, do tell Jan, we need to know - how did they sound?

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Re: What are these voltage regulator tubes ? !!

Post by slowmotion » Thu Nov 19, 2015 8:59 pm

I'm not the best person to ask regarding sound, I' afraid. :D
There's some videos out on the net, I think?
- Jan -

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Re: What are these voltage regulator tubes ? !!

Post by simon » Thu Nov 19, 2015 10:07 pm

Chicken ;-)

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Re: What are these voltage regulator tubes ? !!

Post by Dave the bass » Thu Nov 19, 2015 10:14 pm

I just looked at some of the ETF 2015 vid's Jan mentioned. It looks like a great meet up, bit like Owston but without the funny accents! :)
Dirt eating, low-voltage boy but "'Occasionally phenomenal'"

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Re: What are these voltage regulator tubes ? !!

Post by IslandPink » Thu Nov 19, 2015 11:19 pm

Some nice pics/comment from Thomas :
http://vinylsavor.blogspot.co.uk/2015/1 ... recap.html
"I don't care, I don't care, I don't care if he comes round here, I've got my beer in the sideboard here"

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