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Post by muzacman02 "Jamie" on Aug 2, 2013 20:32:48 GMT -7
I once again have a nice PTP 6V6 amp. It is currently loaded with JJ's Like the KT66's there doesn't seem to be a lot of selection, Other than NOS and the Norm, JJ, GT, TAD, . I have several NOS, RCA Blackplate 6V6 GT's how do I know what they should test or should I just buy Current Stock? What are you REMEDY or other 6V6 amp guys Using??
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Post by bryan0418 on Aug 2, 2013 20:42:11 GMT -7
The only tubes I know that are rated for the Remedy are the JJ 6V6's. Apparently the voltage is higher and only the JJ's work. They sound good to me!
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Post by brayks on Aug 3, 2013 1:40:31 GMT -7
Hey Jamie I had Marconi's in my Remedy before I stupidly: a.) traded it to Mike b.) left them in the amp! And oh by the way....they sounded great (but they had better for what they cost).
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Post by JSA61 on Aug 3, 2013 2:42:54 GMT -7
I have the Tung-sol re-issues in my Remedy. Have about 50hrs on them, no issues, and they sound good.
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Post by zpilot on Aug 3, 2013 6:33:19 GMT -7
You didn't say what your amp is. If it was designed to use JJ 6V6's then you are pretty much stuck with that since they are not really 6V6's and any other tubes may redplate. If it can use real 6V6's and you have NOS blackplate RCA's then I would DEFINITELY go with those. It doesn't get any better. Do you have matched tubes? If you aren't sure then have someone test them with a good mutual conductance tester and sort them out. Then use those matched tubes in pairs or quads (whatever you need) and have the amp properly biased within the tube's spec for plate dissipation.
Back in the day, when those tubes were made, nobody marketed "matched" tubes because ALL tubes of the same brand were held to a close tolerance. You could usually get them close enough just by reversing their position in the circuit. At least that was my experience with them. I can't say for sure if unused tubes drift with age but I'd have them checked anyway.
I'm curious where you got so many RCA blackplates.
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Post by muzacman02 "Jamie" on Aug 3, 2013 6:52:03 GMT -7
Ha Ha, yes I should have been more explainable, I meant I was wandering what plate Volts and Amp draw they are Capable of?. I have a Small stock pile of 6V6's from my 64' BFDR and 65' BFPR days plus I bought some when I had my Remedy I used them in the REMEDY, They sounded KILLER!!! If Im not Mistaking they probably were not intended on using with higher Voltages such as the REMEDY, The 6V6 I have a acquired is a Lil 35 watt BadCat Panther R, Its a Great Lil amp, nice Cleans,Crunch and nice tone Shaping Features, Sounds KILLER with Single Colis, Marconi??? Braksys where do I research these GODLY TUBES you speak of?
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Post by smolder on Aug 3, 2013 7:06:39 GMT -7
Well... I like Ken Rads, Westinghouse, and CBS 6V6's but they are very hard to find and expensive. RCA black or grey plates, are great as well. The JJ's aren't really 6V6's... they stay very clean like 6L6's and share a similar structure from what I've been told. Really, anything NOS is going to sound better and last longer, so I'd see what Mike at KCA has... he plays primarily 6V6 amps and will have solid recommendations.
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Post by zpilot on Aug 3, 2013 11:24:56 GMT -7
Maximum current is determined by the plate voltage. The higher the voltage, the lower the current. The Tung-Sol spec. for plate dissipation is 12 watts. Dan Torres's book "Inside Tube Amps" has a really good chart that covers this if you don't want to do the math.
The plate voltage in a BFDR is considerably higher than what a 6V6 was designed for but it obviously worked. I don't know what the plate voltage in a Remedy is. You'll need to check with the guys at Dr. Z on that and also find out if it's cathode or fixed bias.
I have several pairs of Marconi's that I got from KCA NOS Tubes about 2 years ago. Last I saw Mike was out of them. They are great sounding tubes but I don't think they are any better than your RCA's.
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Post by Telemanic on Aug 3, 2013 20:55:29 GMT -7
I think any nos in general is going to tolerate higher plate voltage than any current production 6V6, just the state of things unfortunately. I think you'd find the nos RCA's etc, to be sweeter, warmer and a little more musical..... Talking degrees here. But I also find them a little less edgy and aggressive sounding which may or may not suit your style, ear, etc. I've found usually in a modern amp designed around a particular availible tube, that I've had mixed at best, success in improving the sound of the amp with Nos power tubes alone. With an "oldie" amp No Question about it the nos are almost a necessity tho. Funny how that works...... I'd much more recommend spending the money on Nos preamp tubes. Definately bang for the buck there, and more potential for improvement, IMHO. As for the Marconi, you might want to check the Operating voltage of your bad cat first. Should be fine, but if I recall the marconi are a "G" designated 6V6, and handle a little lower plate voltage. But again the old stuff is well over designed and pretty sturdy. Sounds like fun tube tolling in store!
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Post by zpilot on Aug 4, 2013 20:44:07 GMT -7
I've used the Marconis in my 5E3 clone and in a friend's DR reissue and they worked fine. So far at least. Time will tell. Telemanic is absolutely correct about current amps being designed to use a particular brand of tube. I think manufacturers do that based on what seems to be a reliable supply more than which tube sounds best. A circuit can be tuned to overcome a tube's weaknesses to some degree.
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Post by Jaguarguy (Mike) on Aug 4, 2013 21:06:45 GMT -7
Hey Jamie I had Marconi's in my Remedy before I stupidly: a.) traded it to Mike b.) left them in the amp! And oh by the way....they sounded great (but they had better for what they cost). They sound really good too Steve!
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Post by muzacman02 "Jamie" on Aug 5, 2013 20:21:32 GMT -7
I currently will leave the JJ's in for now til they Tucker out. They don't sound Bad, but the RCA 6V6 GT Would sound so much better. I upgraded the PI all Pre amp tubes and Reverb driver. With Long Black/Gray Plate RCA/USA made Equivalent , So much smoother, treble Harshness "GONE"" Thanks for the INPUT from everyone, Jamie
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Post by nicholas on Aug 7, 2013 16:07:36 GMT -7
I have NOS RCA's in my dual 6v6 TK Falcon. They sound great. I use a Marconi in my single tube STR. I have tried the Marconi tubes (branded Westinghouse) in my Falcon as well and really like them.... but like the RCA's better. Tough call though. I run the new Tung-sol reissues in my JAZ and like them. To my ears the best sounding new production tubes. Would love to try some NOS in the JAZ but it's pretty spendy for a quad. One thing to keep in mind is the Marconi tubes are a lot longer than a regular 6v6. Might want to do some measuring. See what I mean...
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