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Telefunken PCC88 / 7DJ8


Product Description

Telefunken PCC88/7DJ8 - This is a 7 volt version of the super-expensive, impossible to find 6DJ8. Smooth highs that maintain extension without being bright, with great detail and texture in the mids.

7DJ8/PCC88 are a great choice.  They are absolutely compatible with virtually any product that uses 6922 and 6DJ8   Whether it's an amp, preamp, CD player, whatever.   You still need to pick a good one of course.  And one that meets your sonic requiremements.  And Upscale Audio doesn't sell any sucky ones.  But understand this:  You are in essence getting tasty stuff for half what you would pay if they were labeled 6DJ8 instead of 7DJ8.  They will operate the same.  Trust Uncle Kevvy on this one. 

Made in West Germany for Telefunken by Siemens. These come in original boxes, and test beautifully. Most all of them have tested low in microphony, so we do not have any Driver grade at the moment.

Platinum grade - The best of the best. Lowest noise and microphony with the tightest triode balance we have available. This is typically 10% or tighter, but may be higher depending on available stock.

Gold grade - Low noise and microphonics with a triode balance typically between 15% and 20%, but may be higher depending on available stock.

Click here for a more in depth discussion on how we grade tubes.

Logo and box may vary from picture above. Price includes matching in any quantity you need at no extra charge.

Warranty Information

Vacuum tubes are warranted for 90 days against defects, except in cases of abuse, and replaced with like-item only.

Vacuum tubes are warranted for 90 days against defects, except in cases of abuse, and replaced with like-item only.

  • Tubes being sent in for warranty must have a return authorization number from Upscale Audio. This RA number must be written on the outside of the box. Please also include a note in the box that has your name and telephone number, and please explain the issues with the tube. If this information is missing it will delay the shipment of your replacement tube.
  • Vacuum tubes being sent to Upscale Audio for warranty replacement must be shipped in a box with appropriate packaging to keep them from being damaged. Vacuum tubes returned to Upscale Audio using inadequate packing will have a voided warranty and will be refused at the customer's expense.

Exceptions to our warranty policy are as follows:

  • Upscale Audio reserves the right to refuse warranty at our disgretion based on the equipment being re-tubed. You will be notified of any change prior to your order being processed.
  • Using a tube in an application in which it was not meant to be used. If your amp calls for a 6550, and you decide you want to plug in a 6V6GT, Upscale Audio is not liable if the tube fails, and will not honor any warranty in such a situation.

Upscale Audio is not liable for any damage or injury caused by the improper use of its tubes or the use of an incorrect/incompatible tube type. If you are unsure of what tube or tubes your equipment uses, consult the manufacturer before making a purchase. Using an incompatible tube type may cause severe damage to your equipment and will void your tube's warranty.

vacuum tube returns for refund:

Vacuum tubes are electronic parts and are not refundable under any circumstances.

Product Reviews

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Showing reviews 1-10 of 13 | Next

  1. Very Impressive Tube

    Posted by The Audiophile Wizard on 10th Aug 2015

    I have used many Brands of tubes in my Carver Gear! they all sound Okay,But these Telefunken 7DG8,s really set the Sound Stage in Purity & Realism. I am very impressed w/these tubes in my Sunfire Classic Vacuum tube Preamplifier. I APPLAUDE Kevin for his expertise & knowledge . Job Well Done!!

  2. Nice tube

    Posted by ad on 25th May 2015

    This is a very nice tube. Has good detail and imaging. Using it in a tube buffer works well adds nice color and detail. Also nice tube to have in your tube collection you can't go wrong original telefunken made in germany. take time to burn in. Good sound around 200hrs. tube is really nice.. Thanks!

  3. This tube does alot very well.

    Posted by Clint Garcia on 30th Jan 2015

    This Telefunken tube throws a big realistic image. I really like the tone, the bass is big very slightly rounded. Top to bottom this tube is very well balanced. I don't know if I can recommend it for a phono stage, in my system it was a little too noisy although the noise did exceed the noise floor of most records.

  4. Tube purchase

    Posted by Fred S. on 3rd Jan 2015

    Bought 4 Telefunken PCC88/7DJ8 tubes. Nicely packaged with test results on each tube box. Working flawlessly in my EAR 868 for 25 hours to date. Highly recommended!

  5. Telefunken PCC88 / 7DJ8 - transformed the sound of my what I thought was my dark sounding preamp

    Posted by Unknown on 25th Jun 2014

    I've never been completely happy with my Melos MA222C. It always sounded a bit dark, missing sparkle in the highs. I've tried several 6DJ8/6922 variants including Amperex Bugle Boys, Sovteks, GE and JJ Tesla. These Telefunken 7DJ8 really opened up the preamp.

  6. Much better!

    Posted by Larry on 19th Jun 2014

    I replaced the 6dj8 tubes in my Fosgate Sig Phono with these tubes. I was not happy with the noise in the original tubes. The Tele's are not just more quiet but are much better balanced from top to bottom. This was a.big improvement! The down side is that I am now looking at my other tube equipment and wondering... This is your fault Kevin!

  7. Fantastic Value

    Posted by Eric Scott on 20th Aug 2013

    Bought a quad set of these with the cryo treatment and they sound incredible in my Manley Chinook. Using the gold pin Mullard 12AT7s in my Manley Shrimp and I have really discovered a great combo. I would recommend these highly and Upscale has them for a steal of a price.

  8. Hmmm...

    Posted by Tom on 29th Dec 2012

    The energy distribution provided by this device is fascinating. Almost Wagner-ian in stature, it can still maintain a feathery presentation of the innermost detail associated with massed voices. Yet the shimmer of cymbals and tubular bells retain their mechanical origination with oodles of natural decay. The tube demands sophisticated capacitors and yields excellent results in a worthy circuit and system.

  9. Best of Both Worlds

    Posted by Brent Christman on 30th Aug 2012

    I'm now using these in my Fosgate Signature phonostage. Of all the tubes I've tried I'm the most content with these. Amperex USA 6922 PQ's have an almost surreal velvety smooth texture but seem to roll off the highs a bit much for me with some loss of resolution, and now that I've switched to a moving coil cartridge won't work because of high microphony. The generic Chinese tubes the Fosgate came with have high resolution but are a bit harsh by comparison. Two brands of NOS Russian 6H23 fall somewhere between the Amperex and Chinese tubes, but don't shine with resolution or smoothness, although they are very good tubes.These Telefunken's have the best of both worlds, smooth with high resolution. Sometimes I'd swap the tubes just for a change of pace, but I think these will stay there for quite a while.

  10. A really pleasant surprise

    Posted by Joe Appierto on 24th Aug 2011

    I’ve installed the Telefunken 7DJ8 and I’ve been nothing but pleased. It replaced an Amperex 7308 (a perennial favorite of mine) as the driver in my conrad-johnson Premier 140 power amp. Right out of the box, I find it to be clear, resolving, with excellent extension. The soundstage is even deeper than the Amperex and the bass feels more tightly controlled while the highs definitely have more pep and sparkle without a trace of listening fatigue. Very much the classic Telefunken sound that is highly sought and I now see why. A real winner and an easy tube to recommend.

Showing reviews 1-10 of 13 | Next