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Post subject: Vox AC15
Posted: Mon Aug 15, 2011 8:21 pm
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I know way OT, for a Fender Amps board, but if any of you work on or have one of these great little amps of the 1960's... there is a pretty good source of NOS ECF82 on Ebay, right now.

I consider the German, Munich Siemens to be one of the better made ECF82 (along with original Mullards).

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... K:MEWAX:IT

Several other late 1950-1970 amp makers (usually British---like some Selmers) used this triode-pentode (kinda like RCA's 7199). Very good tube. FWIW.

http://www.voxamps.com/downloads/circuits/ac151959.jpg


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Post subject: Re: Vox AC15
Posted: Sat Aug 20, 2011 6:30 am
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De mémoire le AC15 avait une EF86 en preamp, une ECC83 en PI, une ECC83 pour le vibrato tandis que le AC10 une EF86, une ECC83 en PI et une ECF82 Pentode pour le vibrato et la triode pour le deuxième étage du preamp. A vérifier, il y a eu plein de versions ?

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Post subject: Re: Vox AC15
Posted: Sat Aug 20, 2011 9:24 am
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Oui, le AC-10 ont utilisé ce tube. Mais, donc fait le 1959 AC-15. Quelque ECF82 circuits ont semblé avoir survécu dans le dans le AC-15 modèle, au delà de 1959. Par les premières années du 1960's. J'ai réparé le AC-15 du 1960' s avec ECF82 circuits.

Oder etwas in jener Nachbarschaft... :? :? :?


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Post subject: Re: Vox AC15
Posted: Sat Aug 20, 2011 2:30 pm
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Sorry for french. As there are a lot of different versions [everthing] everything is possible ! 8)
Die vox war sehr gut mit den blauen Lautsprecher !

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Last edited by Tis-san on Sat Aug 20, 2011 4:10 pm, edited 1 time in total.

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Post subject: Re: Vox AC15
Posted: Sat Aug 20, 2011 3:11 pm
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"It's like those French have a different word for everything!" -- Steve Martin

:mrgreen:

Arjay (who "parlez un petit")

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Post subject: Re: Vox AC15
Posted: Sat Aug 20, 2011 4:11 pm
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:lol:

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Post subject: Re: Vox AC15
Posted: Sat Aug 20, 2011 6:21 pm
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Der Vox mit Blauen Bulldoggen ist unglaublich!

I find that the new issue Gold Alnico G-12 Celestion (wtih 50 watt rating) has a good tone. But not nearly as aggressive as the original Blue Bull Dogs. Though supposedly designed like the original Bull Dogs, the Golden Alnicos are supposed to handle more wattage. The two that I've tried have a very warm, Bluesy tone. But lack the real bite of the early Vox AC15 and AC30 amps.

Of course a lot could be the way Vox pushed the begeebers outta their wonderful Mullard EL84 and front end tubes. Those Blackburn made beauties had this agressive tone with great midragne harmonics---that I've only found in good NOS 1970-80 Hungarian Tungsram ECC83, 82, 81 and EL84. I don't believe I've ever seen a Hungarian made ECF82.

Vous remercier, verser le pauvre d'excuse de talaing de tolérer verse français :oops: :oops: :oops:


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Post subject: Re: Vox AC15
Posted: Sun Aug 21, 2011 4:52 am
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My JCM800 50W combo was equipped with a pair of EL34 (almost sure it was Mullard) but I was desapointed as I was looking for a bluesbreaker sound ! Now those amps are collectors !

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Post subject: Re: Vox AC15
Posted: Sun Aug 21, 2011 7:20 am
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I've been lucky enough to play through the Bluesbreaker combo loaded with GEC/MOV KT-66. BIG difference versus the EL34 loaded 'breaker. Much more agressive tone. Chimey high notes--- really almost an Ampeg head unit tone. I'm not sure what Celestion were used, but pretty sure they were ceramic magnet. Powerful. Not the warm, Bluesy tone of the alnico's of the day.

Not sure if the KT-66 ran same trannies--- but that BB did not have the saturation character of the EL84 BB. If you get a chance , try one of these puppies out. Think you'll agree[--- they are nothing like the EL34 Marshall 45-50 watt amps.


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Post subject: Re: Vox AC15
Posted: Sun Aug 21, 2011 9:01 am
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I think Marshall mixed KT66 (I've heard about 6L6 in US ?) and EL34 to make sure of surviving in case of EL34 rising stock, that also one of a reason that I bough a SS after my JCM, :lol: 30 years after all those valves are still available :lol: :lol: :lol: :lol: and I'm back to almost full valve 7ender amp !

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Post subject: Re: Vox AC15
Posted: Sun Aug 21, 2011 1:09 pm
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Tis-san wrote:
I think Marshall mixed KT66 (I've heard about 6L6 in US ?) and EL34 to make sure of surviving in case of EL34 rising stock, that also one of a reason that I bough a SS after my JCM, :lol: 30 years after all those valves are still available :lol: :lol: :lol: :lol: and I'm back to almost full valve 7ender amp !


Indeed.

Think about all the poor shmucks with vintage Ampegs (V2, VT22, V4, B25B, etc) who had their amps converted to 6L6's after production of the 7027A ceased.

Arjay

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