djroge1 Posted January 4, 2011 Share Posted January 4, 2011 I'm just saying... http://store.tubedepot.com/pa-ecc803s-tele.html Link to comment Share on other sites More sharing options...
Mr. Natural Posted January 4, 2011 Share Posted January 4, 2011 If you're in the market, and, if you haven't already checked their site, look at Antique Electronic Supply at tubesandmore.com. Link to comment Share on other sites More sharing options...
Andy R Posted January 4, 2011 Share Posted January 4, 2011 Keeeeeeeeeeeeeeerippes!!!!!!! More like Tele****en. I'm sorry but I bet 9 out of 10 A holes that pay that much for a pre-amp tube couldn't tell the diff between it and a JJ. Ridiculous! Link to comment Share on other sites More sharing options...
Jeff-7 Posted January 4, 2011 Share Posted January 4, 2011 I'll stick with JJs. That's just insane. Link to comment Share on other sites More sharing options...
MrNylon Posted January 4, 2011 Share Posted January 4, 2011 Pass, Out of my price range for pre-amp tubes. Link to comment Share on other sites More sharing options...
Silenced Fred Posted January 4, 2011 Share Posted January 4, 2011 I got some Mullards for a good price when I got my amp retubed. They sound fine, not sure if I could tell the difference Link to comment Share on other sites More sharing options...
Murph Posted January 4, 2011 Share Posted January 4, 2011 I've been hoarding NOS tubes for decades. It's my retirement bonus....... Link to comment Share on other sites More sharing options...
surfpup Posted January 4, 2011 Share Posted January 4, 2011 Meh, I have two old Telefunkens. They were in one of my old Princetons. They sound good, but not really that different than any decent, current production 12AX7 in most of my amps. I think I notice the most difference with them in the V1 or V2 position in a vintage Fender amp. Link to comment Share on other sites More sharing options...
Sproggie Posted January 4, 2011 Share Posted January 4, 2011 Don't waste money on buying matched pairs. You need matched pairs for HiFi. You don't need them for guitar amps where you want some distortion and breakup. Link to comment Share on other sites More sharing options...
surfpup Posted January 4, 2011 Share Posted January 4, 2011 Don't waste money on buying matched pairs. You need matched pairs for HiFi. You don't need them for guitar amps where you want some distortion and breakup. Matched pairs and quartets are important for power tubes, not preamp tubes. Link to comment Share on other sites More sharing options...
MrNylon Posted January 4, 2011 Share Posted January 4, 2011 The pre-amp tube for my Marshall costs about $14.-$16. in a local shop. Those hardly ever go. Link to comment Share on other sites More sharing options...
tazzboy Posted January 4, 2011 Share Posted January 4, 2011 I don't think so. I believe in Supply and Demand but that is just not reasonable if you ask me. Link to comment Share on other sites More sharing options...
WahKeen Posted January 5, 2011 Share Posted January 5, 2011 I'm just saying... http://store.tubedepot.com/pa-ecc803s-tele.html They must be made with Iranian parts... Link to comment Share on other sites More sharing options...
djroge1 Posted January 5, 2011 Author Share Posted January 5, 2011 They must be made with Iranian parts... It said the bottom is diamond of some sort? idk Link to comment Share on other sites More sharing options...
Mr. Natural Posted January 5, 2011 Share Posted January 5, 2011 I've been hoarding NOS tubes for decades. It's my retirement bonus....... Truly, a wise investment. Link to comment Share on other sites More sharing options...
WahKeen Posted January 5, 2011 Share Posted January 5, 2011 Nuclear... Or N. Korean. Link to comment Share on other sites More sharing options...
surfpup Posted January 5, 2011 Share Posted January 5, 2011 It said the bottom is diamond of some sort? idk The diamond engraved (or molded I guess) on the bottom is the way to generally identify Telefunken tubes. Some of them were sold under various names. Link to comment Share on other sites More sharing options...
Bender 4 Life Posted January 5, 2011 Share Posted January 5, 2011 Matched pairs and quartets are important for power tubes, not preamp tubes. not only is that true, but you can also mix 83's & 82's (lower gain tube) to custom tailor your tone.... I inherited a 105w amp with 4 ecc83's (12ax7's) and 2 ecc82's in the preamp bank. at 1st I thought they were separated for the different channels, but further inspection revealed that each channel was firing 2x83's & 1x82 (with 4x 6L6gc's in the power end). This setup worked for about 12 yrs. with no problems. Link to comment Share on other sites More sharing options...
Andy R Posted January 5, 2011 Share Posted January 5, 2011 not only is that true, but you can also mix 83's & 82's (lower gain tube) to custom tailor your tone.... I inherited a 105w amp with 4 ecc83's (12ax7's) and 2 ecc82's in the preamp bank. at 1st I thought they were separated for the different channels, but further inspection revealed that each channel was firing 2x83's & 1x82 (with 4x 6L6gc's in the power end). This setup worked for about 12 yrs. with no problems. True, The concept of matched power tubes tubes is that in a class A/B amp that is push/pull matched sets will be a bit more harmonically similar to each other and "Musical" . If you have one tube that is reaching it's optimal clipping point before the other then in theory you could get an out of balance effect that can effect the dynamic frequency range and sustain. I think they have to be quite a bit different to have a truly noticeable affect. To me it would be more about being able to better match plate voltage so you don't have one tube running hotter ( or colder depending on how you look at it) than the other. This can be overcome by setting up a dual adjustable bias ( at least for a 50 watt ). This way you can Bias each tube individually instead of trying to compensate between the two. I have been thinking about trying this. Andy Link to comment Share on other sites More sharing options...
surfpup Posted January 5, 2011 Share Posted January 5, 2011 not only is that true, but you can also mix 83's & 82's (lower gain tube) to custom tailor your tone.... Correct, and don't forget the 5751! A great way to slightly drop preamp gain. Here's an illustration/list you can use in your tube swapping adventures... The percentage equals approximate amount of gain in relation to a 12AX7 12AX7 = 100% 5751 = 70% 12AT7 = 60% 12AU7 = 20% There are others too. Here's a cool link Link to comment Share on other sites More sharing options...
Andy R Posted January 5, 2011 Share Posted January 5, 2011 Correct, and don't forget the 5751! A great way to slightly drop preamp gain. Here's an illustration/list you can use in your tube swapping adventures... The percentage equals approximate amount of gain in relation to a 12AX7 12AX7 = 100% 5751 = 70% 12AT7 = 60% 12AU7 = 20% There are others too. Here's a cool link I was playing around with this too about a year ago. Pretty interesting! Thanks for the link! Link to comment Share on other sites More sharing options...
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