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Post by drbill on Mar 14, 2015 14:37:19 GMT -6
Hmmm..can't seem to find em there. Got a direct link to the tubes you bought? I searched RCA 408 and it didn't come up with an exact match. Thanks man! |
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Post by Johnkenn on Mar 14, 2015 14:39:11 GMT -6
He might be out...let me send you his email
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Post by tonycamphd on Mar 14, 2015 14:56:07 GMT -6
Hmmm..can't seem to find em there. Got a direct link to the tubes you bought? I searched RCA 408 and it didn't come up with an exact match. Thanks man! oh, you must be going for "bright and pingy" now  |
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Post by sll on Mar 14, 2015 15:07:58 GMT -6
Woohoo...just arrived...they're in the mic and burning in. My first impression is that they're richer in the mids and a little quieter...but that was from them being in the mic for 10 minutes. Check out the "MK-U47 first impressions" thread for more info on the RCA 408's... Where did you buy those John? I'd be interested in buying a spare pair. I know Dan has had fits getting quiet tubes, and he's still struggling with it. Once Dan got the resistor sorted in mine, it was quiet, but I think I lucked out on the tubes I have in mine. Dan mentioned that it's the quietest MK47 he's built. But still...I'd like to get another pair for safety - cause I'm keeping this one a looooong time. Dr. Bill, you actually got the quietest set of 6028 tubes of the entire bunch. Dan and I spent a ton of time burning batches in and testing. I got so frustrated at one point, I was starting down the path of gutting my electronics and starting over with a different tube. I finally settled on a pair that was almost as quiet as yours. They are still not to my standards. It's just a tad noisy for solo acoustic instruments. The funny thing is most people don't think they are noisy. |
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Post by kidvybes on Mar 14, 2015 15:09:04 GMT -6
I wonder if Cat5 has his ? ...Shane's RCA gold-pin NOS 408A's have been sitting on my desk for about 3 months or more...right next to my Heiserman HK47 capsule (hint!)...he lives 10 minutes from me...guess we're both busy... Attachments:
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Post by kcatthedog on Mar 14, 2015 15:11:13 GMT -6
Dr Bill,
you have to pay a bit more for the matched pair !
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Post by kidvybes on Mar 14, 2015 15:12:54 GMT -6
Hmmm..can't seem to find em there. Got a direct link to the tubes you bought? I searched RCA 408 and it didn't come up with an exact match. Thanks man! ...boy they went up quite a bit since I posted the first link a month or two ago (about 10.50 UK Pounds per tube)...guess the sudden interest inspired a price increase... |
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RCA 408's
Mar 14, 2015 15:54:56 GMT -6
via mobile
Post by deehope on Mar 14, 2015 15:54:56 GMT -6
Does he check them for noise prior to shipping?
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Post by drbill on Mar 14, 2015 17:08:42 GMT -6
Hmmm..can't seem to find em there. Got a direct link to the tubes you bought? I searched RCA 408 and it didn't come up with an exact match. Thanks man! oh, you must be going for "bright and pingy" now Is that a snarky comment Tony? LOL I just want a spare set of tubes for a mic that's "worth it". Thought as long as I was trying out other tubes, I'd give the RCA's a shot as the WE's are pretty spotty noise wise. Hey, bright and pingy is good SOMEtimes. I still wouldn't pull that mic out first to use on an ac gtr though. It's not the sound I usually head for. As far as "general consensus" is concerned, I have PLENTY of off-beat and "stupid" mic choices that I love though. Go figure. We're not all after the same sound all the time.... One man's band pass is another man's perfect. And vice versa. |
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Post by drbill on Mar 14, 2015 17:12:40 GMT -6
Where did you buy those John? I'd be interested in buying a spare pair. I know Dan has had fits getting quiet tubes, and he's still struggling with it. Once Dan got the resistor sorted in mine, it was quiet, but I think I lucked out on the tubes I have in mine. Dan mentioned that it's the quietest MK47 he's built. But still...I'd like to get another pair for safety - cause I'm keeping this one a looooong time. Dr. Bill, you actually got the quietest set of 6028 tubes of the entire bunch. Dan and I spent a ton of time burning batches in and testing. I got so frustrated at one point, I was starting down the path of gutting my electronics and starting over with a different tube. I finally settled on a pair that was almost as quiet as yours. They are still not to my standards. It's just a tad noisy for solo acoustic instruments. The funny thing is most people don't think they are noisy. Yeah, Dan relayed your combined epic and tramautic journey on the MK's. As you know, replacing the resistor is what made mine useable. Before that, I honestly almost threw it in the trash I was so frustrated. 10 minutes of glory and then 4 hours of sporadic mega noise in the middle of awesome vocals. No mic is worth that kind of grief as you loose that creative muse. But now, all is good and the thing is off-the-chart good. I hope both you and Dan can find that "perfect" set of tubes. Best of luck. bp |
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Post by drbill on Mar 14, 2015 17:15:52 GMT -6
Thanks to all who sent and relayed links. <<thumbsup>>
I guess I missed the "a". LOL Amazing how mess up searches can become if you leave out one letter.....DOH!
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RCA 408's
Mar 14, 2015 17:20:50 GMT -6
via mobile
Post by svart on Mar 14, 2015 17:20:50 GMT -6
John, How many RCA 408s did you get? I'm curious how consistent these are. It literally takes a pile of the Phillips or WE brand to find 2 useable tubes. That's if you are lucky. I'm considering the RCAs. Thanks, Scott I bought 2x 10$ WE 408 and they are quiet and sound fine. I dunno what all the fuss is about. |
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Post by kcatthedog on Mar 14, 2015 17:30:03 GMT -6
you got lucky svart my we's after 4 days of burn in were still very noisy
the stock tubes were fine. curious about my rca's!
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Post by sll on Mar 14, 2015 18:22:29 GMT -6
Dr. Bill, you actually got the quietest set of 6028 tubes of the entire bunch. Dan and I spent a ton of time burning batches in and testing. I got so frustrated at one point, I was starting down the path of gutting my electronics and starting over with a different tube. I finally settled on a pair that was almost as quiet as yours. They are still not to my standards. It's just a tad noisy for solo acoustic instruments. The funny thing is most people don't think they are noisy. Yeah, Dan relayed your combined epic and tramautic journey on the MK's. As you know, replacing the resistor is what made mine useable. Before that, I honestly almost threw it in the trash I was so frustrated. 10 minutes of glory and then 4 hours of sporadic mega noise in the middle of awesome vocals. No mic is worth that kind of grief as you loose that creative muse. But now, all is good and the thing is off-the-chart good. I hope both you and Dan can find that "perfect" set of tubes. Best of luck. bp I went through the same grief with the supplied resistor for the kit. It would be quiet for a long time and then start spitting, usually during a good take. Turns out the resistor was breaking down under the heat generated. It was a 6 Watt resistor if I recall? Put a metal chassis 10 Watt in and it never spit again. |
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Post by drbill on Mar 14, 2015 19:13:50 GMT -6
Hmmm..can't seem to find em there. Got a direct link to the tubes you bought? I searched RCA 408 and it didn't come up with an exact match. Thanks man! ...boy they went up quite a bit since I posted the first link a month or two ago (about 10.50 UK Pounds per tube)...guess the sudden interest inspired a price increase... They went up AGAIN this afternoon after I just checked a couple of hours ago. The guy selling must be monitoring this thread. |
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Post by Johnkenn on Mar 14, 2015 19:16:53 GMT -6
Hmmm...OK, that ain't cool. AT ALL. I'm sure there are other options. I'll see what I can find.
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Post by tonycamphd on Mar 14, 2015 19:30:15 GMT -6
how much now? John, you should go through and scrub the forum of all info on the 408A rca's before they become the next VF14 lol
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Post by kcatthedog on Mar 14, 2015 19:42:42 GMT -6
hmm I had spoken to him about a group buy and he expressed interest in that: maybe people should pool there resources ?
i was leery as although they are matched you don't know how quiet they are ?
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Post by tonycamphd on Mar 14, 2015 19:48:48 GMT -6
hmm I had spoken to him about a group buy and he expressed interest in that: maybe people should pool there resources ? i was leery as although they are matched you don't know how quiet they are ? if dude is matching tubes, then it is a given that they are quiet, if not he will get a lot of paypal complaints. |
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Post by kcatthedog on Mar 14, 2015 19:49:32 GMT -6
I just checked my bill from 2 weeks ago and I don't see that the prices have changed ?
16 british pounds base per valve plus shipping and handling
thx Tony, yes that is what i thought and you do pay extra for the matching and for maxs build :money will spent.
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Post by kcatthedog on Mar 14, 2015 19:58:20 GMT -6
spoke to soon I just hit re order in my account on the site and the unit price is now 22 not 16 pounds, so up 6 pounds per valve !
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Post by tonycamphd on Mar 14, 2015 19:58:55 GMT -6
I think i paid $44 for per 10 northern electrics(half of which are noisy lol)
Has anyone tried the GE's?
I also just checked, stock is "0"
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Post by kidvybes on Mar 14, 2015 21:10:56 GMT -6
I just checked my bill from 2 weeks ago and I don't see that the prices have changed ? 16 british pounds base per valve plus shipping and handling ...yeah, but is that with the match fee?...the first time I posted the link they were about 10.50 UK Pounds per tube plus another 5.50 per tube to match... ...once he was approached with a "group buy" offer, that was all he needed to know...thus the price increases... ...and oh, JK, here's your other option (from what I can see, the RCA and Sylvanias are identical): www.ebay.com/itm/SYLVANIA-GB-408A-GB-408A-GB408A-Tube-4-Pieces-NEW-/121570831828 |
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Post by Johnkenn on Mar 14, 2015 21:23:28 GMT -6
I'm saying that there's bound to be another dealer selling RCA gold pin 408's, right?
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Post by kidvybes on Mar 14, 2015 21:48:18 GMT -6
I'm saying that there's bound to be another dealer selling RCA gold pin 408's, right? ...other than the standard WEs and NEs, there's a lot of piecemeal, and gold-pin variants are very rare...I was researching sources for standard 408A tubes back in October...I found a large tube warehouse in Orlando that had some back-stock...he had about 30 tubes, so I asked for a price...he told me if I bought 25pcs. or more he'd give me a great buy...I purchased 26 based on the brands I preferred (asst. RCA, Sylvanias, WEs,and Westinghouse)...9pcs. turned out to be NOS gold-pin (8 RCAs, and 1 Sylvania)...I didn't even know there were gold-pin variants until I received that shipment...that's when I found the UK dealer online... ...here's the other source I located (these appear to be the same vendor): www.tedss.com/2099001413www.standardradioelec.com/GB-408A |
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