Jump to content

tntman

FS: Mullard ECC83 Gold Pin Matched Pair - PRICE DROPPED!

Recommended Posts

Posted (edited)
Item Condition: 9/10
Shipping Options: Pickup available but audition is not available.,Shipping is available at agreed cost.
Suburb or Town: Sydney
State: New South Wales
Payment Method: Cash. PayID
Reason for selling: NLR

Further information:

 

My current preamp can't use ECC83 anymore hence I am selling these extremely rare Mullards.   They have about  500hours put on them at most, they are rated for 10000 hours.

 

These are the golden gems of the ECC83 pre tubes.  I will pack them carefully and arrange for transport of them via AusPost Express bag. 

 


Photos:

 

20200719_165355.thumb.jpg.cae73def873007dca2b10e157be9cd55.jpg

20200719_165511.jpg

20200719_165504.jpg

20200719_165436.jpg

20200719_165444.jpg

20200719_165500.jpg

Edited by tntman
Price adjustment

Share this post


Link to post
Share on other sites

I thought 10M’s had yellow print?

What denotes that these are 10M’s if you don’t mind me asking.

Share this post


Link to post
Share on other sites

 

1 hour ago, Muzza71 said:

I thought 10M’s had yellow print?

Like this you mean?

Mullard Master Series 10M 12AU7A.1.JPG

Share this post


Link to post
Share on other sites

Exactly but 12AX7’s not 12AU7’s 👍

Share this post


Link to post
Share on other sites


Sorry I made a mistake, these are not master series, they are just below them. I've updated price to reflect. 

Share this post


Link to post
Share on other sites

One is still drooling nevertheless...how good are NOS Mullards.

 

GLWTS

Share this post


Link to post
Share on other sites

They look to me to be I63 January 1969 Blackburn made with silver grid posts and welded perpendicular O getters.

Share this post


Link to post
Share on other sites
41 minutes ago, xlr8or said:

They look to me to be I63 January 1969 Blackburn made with silver grid posts and welded perpendicular O getters.

Not sure what 163 January means, but I am intrigued how can you determine year of manufacture – I cannot see any date codes on these tubes? 

Share this post


Link to post
Share on other sites


Posted (edited)
6 hours ago, Aperalim said:

Not sure what 163 January means, but I am intrigued how can you determine year of manufacture – I cannot see any date codes on these tubes? 

The left valve in the 4th photo above shows the horizontal etched date code of B9A* just to the left of the Made in Great Britain white print. The asterisk should be a number representing the week of manufacture but it's long gone from the glass envelope most likely smeared off with time. B represents Blackburn, 9 is the year  of manufacture, in this specific case 1969, and A is the month of manufacture, January.

 

The distinct features of 14 mm short grey anode plates, silver grid posts and the perpendicular O ring getter with a welded connection 3/4 along the height of the support rod identifies the revision code of I63. I am not going to comment on the gold plated pins.

 

How the revisions codes progressed are I600, mC1, f91, f92, I61 and I63. Within each revision code there were several versions having distinct features - for example, in the I600 series, the prized possessions, there were 3 variants: black welded 17 mm toasted plate copper grid post wrinkle/mottled glass square goal post getters; grey welded 17 mm plate copper grid wrinkle/mottled glass square goal post getters; and, grey crimped 17 mm plate copper grid post clear glass square goal post getters.

 

I can write books and books on this stuff.

 

To the trained eye these things are very easy to spot. 😉

Edited by xlr8or

Share this post


Link to post
Share on other sites

 

Goes off to check out stash of Mullards.................

Share this post


Link to post
Share on other sites
Posted (edited)
5 hours ago, xlr8or said:

To the trained eye these things are very easy to spot. 😉

Wow!. I was fascinated reading that explanation. @ OP , sorry for topic drift in your FS ad.

But I've got to ask. How much would the master series tubes sell for?

 

Edit: And what makes the yellow ones better?

Edited by Luc

Share this post


Link to post
Share on other sites
6 hours ago, xlr8or said:

I can write books and books on this stuff.

Maybe you should?

 

I found this fascinating, but clearly I’m off topic for a FS post

Share this post


Link to post
Share on other sites


 

Don't worry............a good discussion keeps bumping his ad!

Share this post


Link to post
Share on other sites
12 hours ago, Luc said:

Wow!. I was fascinated reading that explanation. @ OP , sorry for topic drift in your FS ad.

But I've got to ask. How much would the master series tubes sell for?

 

Edit: And what makes the yellow ones better?

The 10M series are distinctly recognisable by the 2 inherent features of yellow print identifying the 10M label and gold plated pins.

 

These valves were specifically hand selected for GPO and highly specialised applications requiring very tight tolerances in the matching of the dual triodes. They also exhibited very low microphonics and noise, and are most commonly selected for use in phono stage input or gain V1 or V2 positions in modern audiophile applications where low microphonics are highly desirable. They appeared in the 1960's and are the equivalent of comparing a CCa valve with an E88CC valve from the exact same factory made at the exact same time with the exact same manufacturing code. These valves were measured, tested and labelled for highly specified telephony applications. Think cold war, nuclear fallout and the criticality of comms in pilot warfare chasing those invisible migs and you get the message.

 

Happy to answer any other queries off-line and refocus the post back to the OP's FS listing. 👍👍👍

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.

  • Classifieds Statistics


    Currently Active Ads

    Total Sales (Since 2018)

    Total Sales Value (Last 14 Days)

    Total Ads Value (Since March 2020)
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By lancer181
      Item Condition: Never been used like new Shipping Options: Shipping is available at agreed cost. Suburb or Town: Christchurch State: New Zealand Payment Method: Bank transfer Reason for selling: Further information:
      Duelund crossover parts . never been used. Not really wanting to split anything .
      6.8 uF cast pure copper foil VSF audio capacitor x 2
      2.2 uF cast pure copper foil VSF audio capacitor x 2
      3.3 uF cast pure copper foil VSF audio capacitor x 2

      4mH 12 awg premium air core audio inductor cast pio-cu x 2
      1 mH 12 awg premium air core audio inductor cast pio-cu x 2

      20 uF cast cast pure copper foil VSF audio capacitor x 2

      22R0 silver / graphite resistor cast x 2
      10R0 silver / graphite resistor cast x 2
      4R7 silver / graphite resistor cast x 2
      47R silver / graphite resistor cast x 2
      2R0 silver / graphite resistor cast x4
      0.01 uF ag 600vDc precision audio capacitor pure silver foil

      200uF cast Mylar x 2
       
       



    • By Island boy
      Item Condition: VGC Shipping Options: Pickup available but audition is not available.,Shipping is available at agreed cost. Suburb or Town: Dalyston State: Victoria Payment Method: EFT Reason for selling: To many cartridges Further information:
      early original Decca maroon cartridge, very good condition,
      brought from a member a while ago 
      low hours I would say no more than a 100, no box or paper work, but can supply a appropriate box for postage 
       
      Photos:
       
      PLEASE READ
      If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved


    • By Island boy
      Item Condition: VGC Shipping Options: Pickup available but audition is not available.,Shipping is available at agreed cost. Suburb or Town: Dalyston State: Victoria Payment Method: EFT Reason for selling: To many cartridges Further information
      Early original Decca gold with vdh stylus in very good condition, bought of original owner who bought it back from the uk.
      50 hours max.
      comes with box and paper work 
       
      Photos:
       
      PLEASE READ
      If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved



    • By dddesy
      Item Condition: GOOD Shipping Options: Pickup available and you can audition.,Shipping is available at agreed cost. Suburb or Town: SYDNEY State: New South Wales Payment Method: paypal plus fees or as a friend,EFT,cash on pickup Reason for selling: not used Further information: Teac vrds7 is one of the genuine hi-end vintage cd players.These rarely come up for sale.Comes with the original remote control.Has some light scratches on the back plate as seen in pictures, apart from that it is in good condition.It has served me well with it's smooth,warmish sound and big open soundstage.New laser was fitted late last year and has hardly been used since.While I was waiting for the laser, I decided to try streaming and have been streaming ever since.I used the cd for about 50hrs with the new laser and since then it has been sitting on the shelf.Perhaps it's time to let it go(reluctantly)so someone else can enjoy it.
      Would prefer local pickup due to size and weight,however if no local interest will consider shipping at agreed cost
       
      Photos:
       
      PLEASE READ
      If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved




    • By karmakat
      Item Condition: used very good Shipping Options: Pickup available but audition is not available.,Shipping is available at agreed cost. Suburb or Town: Ashfield State: New South Wales Payment Method: PayPal, cash Reason for selling: NLR Further information:
       
      Audio Technica AT95E Elliptical Moving Magnet Cartridge.
       
      I bought these 2 cartridges from Thomas Thakkers shop in Germany in 2013.
       
      They haven't had much use, are in great condition and ready to add a stylus. They were made OEM so have no identification on them, apart from "made in Japan".
       
      Collect from Ashfield or can post.

      Photos:
       
      PLEASE READ
      If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved




×
×
  • Create New...