CV1094

pre65 · Post by **pre65** » Wed May 21, 2014 7:42 am

CV1094, also known as 10E/108 and VT94.

Any use for hi-fi ?

http://www.r-type.org/exhib/aaj0076.htm

http://www.radiomuseum.org/tubes/tube_vt94~2.html

There seems to be another (more common) VT94 which is an octal triode.

Dave the bass · Post by **Dave the bass** » Wed May 21, 2014 8:04 am

What a cute looking valve! High voltage low power spud amp contender? I might be totally wrong but with the spec'd grid @-2.5V thats saying line-level driven to me.

If i was retired and had an large collection of transformers thats exactly the sort of thing I'd like to play at/with

I would!

Send me a pair and I'll let you know!!!

DTB

Paul Barker · Post by **Paul Barker** » Wed May 21, 2014 8:28 am

Might be fun, may have to treat it like 811a.

pre65 · Post by **pre65** » Wed May 21, 2014 8:29 am

So it could be used as a driver to drive another one Sakuma Sam style ?

Interesting about the 2.5v grid.

What happened to the discussions about line level driven amps ?

Dave the bass · Post by **Dave the bass** » Wed May 21, 2014 10:48 am

Dunno, found any loadlines?

I just checked my letterbox but the VT94's haven't arrived yet

DTB

pre65 · Post by **pre65** » Wed May 21, 2014 10:53 am

Dave the bass wrote:
I just checked my letterbox but the VT94's haven't arrived yet

DTB

Same here.

But I am waiting, with forklift at the ready, for four big transformers/chokes from Hammond Canada, and a box of miscellaneous gubbinz from Bluebell.

pre65 · Post by **pre65** » Fri May 23, 2014 7:05 pm

I've offered to help Steptoe redesign his amplifier project which is constrained by the valves and transformers he has to hand.

So, would a CV1094 , with an amplification factor of 45, be any use to drive a single 6Y6-g, or a parallel pair in single ended.

Must admit I have not found any CV1094 curves yet, but I could provide a sample for testing.

Also, does anyone know if L4 large British 4 pin bases/sockets are commercially available ?

We tried the 6Y6-g in place of my Russian KT66, and even with no reconfiguration they sounded nice.

Dave the bass · Post by **Dave the bass** » Fri May 23, 2014 10:28 pm

How about making your own bases with summat like 4 of these -> http://www.ebay.co.uk/itm/2x-4mm-Bindin ... 1e8beae2b0

...mounted in a insulated material like that nylon stuff you use?

True DIY!

DTB

Paul Barker · Post by **Paul Barker** » Fri May 23, 2014 10:55 pm

Good idea.

Dave the bass · Post by **Dave the bass** » Fri May 23, 2014 10:57 pm

I'm full of 'em y'know....

Some of em even work!

DTB

pre65 · Post by **pre65** » Sat May 24, 2014 6:25 am

I was reading some comments Paul made about CV1094 (on the GM70 thread) suggesting that CV1094 might only be happy as an A2 valve.

Paul Barker · Post by **Paul Barker** » Sat May 24, 2014 7:03 am

Paul Barker wrote:Might be fun, may have to treat it like 811a.

steve s · Post by **steve s** » Sat May 24, 2014 8:16 am

pre65 wrote:
Also, does anyone know if L4 large British 4 pin bases/sockets are commercially available ?

Hi phil i managed to find both remade and nos about 10 years ago whan i was messing with the det25 one of the british valve dealers had them, but i had to email to find them,
I plan to rekindle the det 25 so im hanging on to mine .. Sorry...

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