So I got some 6N1P/ECC88's? what should I do with them?

elkym · 11-10-2008, 12:55 AM

I thought about a DIY hifi, or maybe I could wire up a converter jack and plug them in my amp-- but I'm not sure that would work... and I only have one amp, and a whole lotta these tubes... Does anyone here want some?

Send me your ideas...

elkym · 11-10-2008, 06:22 PM

bump

Steve Conner · 11-10-2008, 06:32 PM

Sorry, I have a heap of them too, and no idea what to do with them.

pila · 01-03-2009, 01:35 AM

I think they are a medium mu twin triode, like maybe a 12AU7 etc.
Look it up on the NJ7P tube database site as an ECC88.

UssrTradeCom · 09-28-2009, 07:47 PM

I think ECC88 equivalent 6N1P-EV

Model: 6N1P-EV
Type: Double Triode
Equivalent: 6DJ8, E88CC, 6922

like this, if interesting look here 6N1P-EV | 6DJ8 | ECC88 | 6922 | Double Triode Tube, there are some detailed description about this.

drfovan · 10-02-2009, 10:44 PM

those are fine tubes to build a cascode preamp stage

Alf · 10-21-2009, 07:29 PM

Are there any schematics floating around using these tubes ?

Alf

TD_Madden · 10-21-2009, 10:31 PM

Here's some cool projects (but none strictly for guitar amps):

6DJ8 / ECC88 / Symmetrical SRPP Tube Preamplifier Schematic

HeadWize - Project: A Low-Voltage Class-A Tube Headphone Amplifier by Helmut Ahammer

HeadWize - Project: A DC-Coupled Tube Amplifier With Futterman Output Stage for Dynamic Headphones by Rudy van Stratum

Preamplifier_with_HEAD

imaradiostar · 10-22-2009, 12:40 AM

I built a cascode front end with a 6dj8/ecc88 the other week- sounded great for dirty/midrangy sounds, never really cleaned up. I'd imagine a little different tone stack with less mids would have helped. I think the cascode sounded pretty awesome and I've recieved complements on other cascode builds in the past.

jamie

Alf · 10-22-2009, 03:50 PM

Code:

sounded great for dirty/midrangy sounds, never really cleaned up.

yeah that's what I thought , will it clean up especially with a humbuckers ?
My main guitar is a Les Paul.

So good for a crunch or lead channel but not for clean sounds .

I think it has to do with the very high transconductance 12,500 microohmos ( is this right ?) I always use mA/V ( 12,5)

I have used tubes with 6,1 ma/V (6,100 mho) ( 6aq8) and they cleaned up only barely and there was a more sudden breakup.
That's why the 12ax7 type of tube sounds so good because of the smooth transition into distortion imho.

Alf

imaradiostar · 10-23-2009, 12:26 AM

To me the reason for going with a cascode would be achieving a somewhat pentode like sound without using a pentode. You can set up the cascode for slightly less gain and use a tone stack that lends to a "cleaner" sound like a blackface fender or the like. If you have really hot pickups in your les paul I just don't know of any circuit that'll make it sound like a pretty sparkly strat into a blackface Fender.

Maybe you could just try a few circuits. I like the "midrange" control as used by gibson on some of their old amps. It's been revived on a few more modern amps as well. It yields bass or treble rollof at the extreme settings and a nice scooped mid sort of tone in the middle. It's worth trying that into a LTPI for a simple amp with two knobs. I know that sounds like a terrible idea but don't knock it until you've tried it!

I haven't tried it but I intend to shortly.

jamie

11-10-2008, 12:55 AM	#1
elkym Junior Member Join Date: Mar 2008 Location: Utah Posts: 12	So I got some 6N1P/ECC88's? what should I do with them? I thought about a DIY hifi, or maybe I could wire up a converter jack and plug them in my amp-- but I'm not sure that would work... and I only have one amp, and a whole lotta these tubes... Does anyone here want some? Send me your ideas...

11-10-2008, 06:32 PM	#3
Steve Conner Supporting Member Join Date: May 2006 Location: Glasgow, Scotland Posts: 2,413	Sorry, I have a heap of them too, and no idea what to do with them. __________________ "Transformerless is the way to go", said he, without a hint of irony.

09-28-2009, 07:47 PM	#5
UssrTradeCom Junior Member Join Date: Sep 2009 Posts: 3	I think ECC88 equivalent 6N1P-EV Model: 6N1P-EV Type: Double Triode Equivalent: 6DJ8, E88CC, 6922 like this, if interesting look here 6N1P-EV \| 6DJ8 \| ECC88 \| 6922 \| Double Triode Tube, there are some detailed description about this. __________________ Interesting Information about Pentode, Double Triode, Nixie tubes and etc. Follow me on http://www.TWITTER.com/UssrTradeCom

10-22-2009, 03:50 PM	#10
Alf Senior Member Join Date: May 2006 Location: Netherlands Posts: 120	Code: sounded great for dirty/midrangy sounds, never really cleaned up. yeah that's what I thought , will it clean up especially with a humbuckers ? My main guitar is a Les Paul. So good for a crunch or lead channel but not for clean sounds . I think it has to do with the very high transconductance 12,500 microohmos ( is this right ?) I always use mA/V ( 12,5) I have used tubes with 6,1 ma/V (6,100 mho) ( 6aq8) and they cleaned up only barely and there was a more sudden breakup. That's why the 12ax7 type of tube sounds so good because of the smooth transition into distortion imho. Alf Last edited by Alf; 10-22-2009 at 04:03 PM.

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11-10-2008, 06:22 PM	#2
elkym Junior Member Join Date: Mar 2008 Location: Utah Posts: 12	bump

01-03-2009, 01:35 AM	#4
pila Member Join Date: Aug 2008 Location: michigan Posts: 68	I think they are a medium mu twin triode, like maybe a 12AU7 etc. Look it up on the NJ7P tube database site as an ECC88.

10-02-2009, 10:44 PM	#6
drfovan Junior Member Join Date: May 2008 Location: Rotterdam, Netherlands Posts: 1	those are fine tubes to build a cascode preamp stage

10-21-2009, 07:29 PM	#7
Alf Senior Member Join Date: May 2006 Location: Netherlands Posts: 120	Are there any schematics floating around using these tubes ? Alf

10-21-2009, 10:31 PM	#8
TD_Madden Senior Member Join Date: May 2006 Location: Manassas, VA Posts: 684	Here's some cool projects (but none strictly for guitar amps): 6DJ8 / ECC88 / Symmetrical SRPP Tube Preamplifier Schematic HeadWize - Project: A Low-Voltage Class-A Tube Headphone Amplifier by Helmut Ahammer HeadWize - Project: A DC-Coupled Tube Amplifier With Futterman Output Stage for Dynamic Headphones by Rudy van Stratum Preamplifier_with_HEAD

10-22-2009, 12:40 AM	#9
imaradiostar Senior Member Join Date: Jan 2008 Location: Doylestown, PA Posts: 199 Member's Picture Albums	I built a cascode front end with a 6dj8/ecc88 the other week- sounded great for dirty/midrangy sounds, never really cleaned up. I'd imagine a little different tone stack with less mids would have helped. I think the cascode sounded pretty awesome and I've recieved complements on other cascode builds in the past. jamie

10-23-2009, 12:26 AM	#11
imaradiostar Senior Member Join Date: Jan 2008 Location: Doylestown, PA Posts: 199 Member's Picture Albums	To me the reason for going with a cascode would be achieving a somewhat pentode like sound without using a pentode. You can set up the cascode for slightly less gain and use a tone stack that lends to a "cleaner" sound like a blackface fender or the like. If you have really hot pickups in your les paul I just don't know of any circuit that'll make it sound like a pretty sparkly strat into a blackface Fender. Maybe you could just try a few circuits. I like the "midrange" control as used by gibson on some of their old amps. It's been revived on a few more modern amps as well. It yields bass or treble rollof at the extreme settings and a nice scooped mid sort of tone in the middle. It's worth trying that into a LTPI for a simple amp with two knobs. I know that sounds like a terrible idea but don't knock it until you've tried it! I haven't tried it but I intend to shortly. jamie

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