Equivalents to 6888

Ryssen · 11th July 2006, 05:42 PM

Need an eqvalent to the pentode 6888,octal 6,3v heaters,are there any?

Giaime · 11th July 2006, 06:13 PM

Couldn't find any, sorry. What's the need for a 6888?

Probably old equipment, isn't it? Otherwise, if you are building something, better to switch to more available types.

This thread might be of interest:
http://www.diyaudio.com/forums/showthread/t-19368.html

VT67 · 11th July 2006, 06:27 PM

Apparently the E180F is a possible substitute. I have a few NOS 6888 at hand (Bendix and Sylvania). Same question as Giaime, why do you need them?

Regards

Ryssen · 11th July 2006, 06:40 PM

I am going to have them as the upper tube in a Mu follower found couple of schemas amd an articel on that,so its an old tube,well I need an octal pentode with 6,3v heater.E180F is 9pin

Maybe you could sell me a couple of those 6888?

VT67 · 11th July 2006, 06:59 PM

Quote:

Maybe you could sell me a couple of those 6888?

Why not, I don't have a direct use for them. I paid them 4,5€ a piece. If you want i can check about postage to Sweden?

Regards

jrdmedford · 11th July 2006, 07:00 PM

E180F and E280F are still around... They seem to be used in
Microphone preamps. In such cases, the Amperex SQ low noise
product seem to be preferred.

Why not use an EF86 as a substitute. This is a low noise pentode
also often used in phono and microphone applications. Sovtek
produces an excellent current product.

-- Jim

Ryssen · 11th July 2006, 07:09 PM

Quote:

E180F and E280F are still around...

Yes but they are 9 pin noval´s i want octal.

Quote:

Why not, I don't have a direct use for them. I paid them 4,5€ a piece. If you want i can check about postage to Sweden?

Yes check the postage.Wat do you want for them each in $$$.you do have Paypal..

Eli Duttman · 11th July 2006, 10:46 PM

Quote:

well I need an octal pentode with 6,3v heater.

There's always the 6SJ7. RCA thought well enough of the 6SJ7 to make a "red" variant, the 5963.

Yet another possibility is the 6AC7.

jaymanaa · 11th July 2006, 10:53 PM

http://www.vacuumtubes.net/p5.pdf

These guys claim to have them @ 7.00 each. Brand?

Ryssen · 11th July 2006, 10:53 PM

Thanks for the answers,I am about to buy 4pcs 6888.

11th July 2006, 05:42 PM	#1
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Eqvalents to 6888 Need an eqvalent to the pentode 6888,octal 6,3v heaters,are there any? __________________ Regards Åke

11th July 2006, 06:27 PM	#3
VT67 diyAudio Member Join Date: Jun 2004 Location: Belgium	Apparently the E180F is a possible substitute. I have a few NOS 6888 at hand (Bendix and Sylvania). Same question as Giaime, why do you need them? Regards __________________ VBITNGC Krell KSA-50 Krell KSA-100MkII

11th July 2006, 06:40 PM	#4
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	I am going to have them as the upper tube in a Mu follower found couple of schemas amd an articel on that,so its an old tube,well I need an octal pentode with 6,3v heater.E180F is 9pin Maybe you could sell me a couple of those 6888? __________________ Regards Åke

11th July 2006, 10:53 PM	#9
jaymanaa diyAudio Member Join Date: Jan 2006 Location: Kansas	http://www.vacuumtubes.net/p5.pdf These guys claim to have them @ 7.00 each. Brand? __________________ "Make everything as simple as possible, but no simpler" Einstein

11th July 2006, 10:53 PM	#10
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Thanks for the answers,I am about to buy 4pcs 6888. __________________ Regards Åke

11th July 2006, 06:13 PM	#2
Giaime diyAudio Member Join Date: Oct 2004	Couldn't find any, sorry. What's the need for a 6888? Probably old equipment, isn't it? Otherwise, if you are building something, better to switch to more available types. This thread might be of interest: http://www.diyaudio.com/forums/showthread/t-19368.html

11th July 2006, 07:00 PM	#6
jrdmedford diyAudio Member Join Date: Mar 2004 Location: Medford, MA	E180F and E280F are still around... They seem to be used in Microphone preamps. In such cases, the Amperex SQ low noise product seem to be preferred. Why not use an EF86 as a substitute. This is a low noise pentode also often used in phono and microphone applications. Sovtek produces an excellent current product. -- Jim

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