mattjones_81 Posted January 27, 2012 Share Posted January 27, 2012 Hi all, I was thinking of changing the preamp valves in my soundcity b120 to play about with the tone. I like all I read about the Mullard ECC83 12AX7 valves but can't afford the hefty pricetag! I saw these on ebay [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=180719440055&category=64629&_trksid=p5197.c0.m619"]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=180719440055&category=64629&_trksid=p5197.c0.m619[/url] but am a little sceptical - does anyone know if these are a faithful reproduction that will get me the Mullard tone on the cheap? Or are they just a big pile of pap? Any thoughts / ideas / knowledge or experience would be appreciated Thanks Matt Quote Link to comment Share on other sites More sharing options...
umph Posted January 27, 2012 Share Posted January 27, 2012 they cost more than the old mullards, think they're made in russia to. Quote Link to comment Share on other sites More sharing options...
Musky Posted January 27, 2012 Share Posted January 27, 2012 Yeah, they're Russian made (zoom in on the photo). Interestingly the New Sensor site lists them as $30 each and only available to the US - this guy's selling them for $39 for two including shipping. I'm really not sure what to make of that. Quote Link to comment Share on other sites More sharing options...
bertbass Posted January 28, 2012 Share Posted January 28, 2012 I'm awaiting delivery of some of these, http://www.hotroxuk.com/matched-valves-links-page-12ax7-6l6-909-0/preamp-valves-12ax7-ecc82jj-groove-tube-12ax7m-1885-0/tung-sol-re-issue-12ax7-set-of-5-mesa-boogie-triaxis.html They're supposed to be the dogs, I'll report what I think when I've tried them. I'm not sure about the 3D sound though. I wonder if they'll send me a free pair of special glasses, or should that be ears, to appreciate it. Quote Link to comment Share on other sites More sharing options...
mattjones_81 Posted January 28, 2012 Author Share Posted January 28, 2012 Bertbass - Yes would like to hear a review on those tubes please Quote Link to comment Share on other sites More sharing options...
bertbass Posted January 28, 2012 Share Posted January 28, 2012 The valves turned up this morning, quick delivery as I only ordered them yesterday and I'm going to mess about in a bit in the garage changing valves and gig tonight. I'll post what I think tomorrow. Quote Link to comment Share on other sites More sharing options...
bertbass Posted January 29, 2012 Share Posted January 29, 2012 [font=times new roman,times,serif]Well the gig was not the greatest trial for and amp, community centre, high ceiling, wood floor and no sound absorbsion at all. I expect the echo is still going a day later. Audience loved it though and that's what matters. Did I forget to mention the neighbour in her bungalow next door who complained repeatedly about the volume and this was before we'd even set up or played anything and as usual people do what the one wants and not the 150 or so people who are there to enjoy themselves.[/font] [font=times new roman,times,serif]Back to the new pre-amp valves. Took out the JJ ecc83s's and replaced them with the new Tung Sol re-issue 12AX7's. In the garage my amp, Mywatt 200, did sound slightly different in a nice way. At the start of the gig it was a bit difficult to tell if there was any difference at all. However, by the second set the sound was noticably improved, not that the sound was bad in the first place. Tighter bass and treble and less mid. I guess the valves needed to be played in. I'm looking forward to playing an acoustically better venue without a whinging neighbour.[/font] [font=times new roman,times,serif]I began playing in the 60s and valve amps were all there were. Valves were only changed when they died and were replaced with whatever you could get your hands on. It never occured to anyone that valves had a 'sound' even if we did know about the sound of valves I certainly couldn't afford to experiment so it comes as a bit of a revelation that you can change the sound of an amp by just changing the valves but then again, all the valves back then were what is described as NOS today so perhaps there wasn't a difference after all as we used the best there were anyway.[/font] Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.