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Date: Thu, 24 Mar 94 10:33:13 KST
From: jhlee@mostws.most.go.kr (Lee)
Subject: RE: CV numbered Tube Info.

Cv numbered tubes are European Millitary tubes ( England ? )
folowings are commercail equivalent tube.
CV 136; EL91 (6AM5)
CV140  : 6AL5 (6097,6058 )
CV287  : STV70/20 ,ACT23
CV317  ?
CV400 ?
CV800 : 6AK5 (5591,6998)
CV 717 : 5R4GY ....Rectifier tube 
sorry not 12AX7,12AU7 which you wanted.
I think only CV717 is worth to buy  if It is less 7$.

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Date: Thu, 24 Mar 1994 10:24:03 +0100
From: rampa@elet.polimi.it (Vittorio Rampa)
Subject: Re: valve (tube) CV numbers?

Hi netters,

	in the last posting, Peter Campbell (peterca@ento.csiro.au)
wrote requesting info about CV tube numbers.
>From my equivalence books:

CV 136:	EL91 or 6AM5
CV 140: 6AL5 or EAA91
CV 287: STV 70/20
CV 317: ????
CV 406: E1423
CV 416: 6F17
CV 717: 5R4GY
CV 850: 6AK5 or EF95 or 403

Hope that this helps.

Regards
				Vittorio

----------------------------
Standard disclaimer applies ...
----------------------------

Vittorio Rampa, 			tel: 	+39-2-2399-3585
Dipartimento di Elettronica, 		fax: 	+39-2-2399-3413
Politecnico di Milano,			e-mail:	rampa@elet.polimi.it
20133 Milano (MI), Italy.

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From: dunker@Lise.Unit.NO (Thomas Dunker)
Subject: RE: CV numbered Tube Info.
Date: 28 Mar 1994 16:01:14 GMT

In article <2ms6ol$1qgf@introl.introl.com>, jhlee@mostws.most.go.kr (Lee) writes:
 > Cv numbered tubes are European Millitary tubes ( England ? )
 > folowings are commercail equivalent tube.
 > CV 136; EL91 (6AM5)
 > CV140  : 6AL5 (6097,6058 )
 > CV287  : STV70/20 ,ACT23
 > CV317  ?
 > CV400 ?
 > CV800 : 6AK5 (5591,6998)
 > CV 717 : 5R4GY ....Rectifier tube 
 > sorry not 12AX7,12AU7 which you wanted.
 > I think only CV717 is worth to buy  if It is less 7$.
 > 

 The General Electrics Essential Characteristics Manual (Available from a number
of sources) lists virtually all the CVxxxx tubes along with replacement types.
 BTW, CV4003 is the equivalent for 12AU7WA. I have some in my preamp (Mullards)
and they're great.

Tom