Wanted: a pair of 6H30-DR tubes

cryotweaks · « **on:** 16 Feb 2009, 03:56 am »

Need some for my Transporter. Will consider offering generous store credit towards anything at TweekGeek.com

Thanks!

ted_b · « **Reply #1 on:** 16 Feb 2009, 04:28 am »

Mike,
Parts Connexion has matched pairs for $165. Do I get a credit for helping you find them??

http://www.partsconnexion.com/catalog/NOSTubes.html (pick 6H30 tab at bottom, NOT the Pearl cryo'd stuff).

ratso · « **Reply #2 on:** 16 Feb 2009, 04:30 am »

strange, i was just online for this. i was considering getting a pair for my supratek. went to a lot of online forums trying to get a simple question answered - do these actually SOUND better then the regular 6H30's. i know they are built better and last longer. the general consensus from those that compared seemed to be not much of a diff SQ wise. and they're super expensive. anyways if you want to pay thetubestore.com seems to have them.

Philistine · « **Reply #3 on:** 16 Feb 2009, 04:40 am »

Quote from: ratso on 16 Feb 2009, 04:30 am

strange, i was just online for this. i was considering getting a pair for my supratek. went to a lot of online forums trying to get a simple question answered - do these actually SOUND better then the regular 6H30's. i know they are built better and last longer. the general consensus from those that compared seemed to be not much of a diff SQ wise. and they're super expensive. anyways if you want to pay thetubestore.com seems to have them.

I was told by Brendan at Tube World that the difference between the regulars and the DR's was "night and day", didn't believe it. Unfortunately, 2 pairs later, he was right

. They sound significantly better.

ted_b · « **Reply #4 on:** 16 Feb 2009, 04:47 am »

Yes, night and day. It's the reason we (in the modwright tube rolling circle) recommend them for the Modwright LS 36.5, and have several rave reviews when they are used in the Modwright Transporter.

ted_b · « **Reply #5 on:** 16 Feb 2009, 04:50 am »

Quote from: ratso on 16 Feb 2009, 04:30 am

the general consensus from those that compared seemed to be not much of a diff SQ wise. and they're super expensive. anyways if you want to pay thetubestore.com seems to have them.

?? And wayyy overpriced there (by almost 2x). Parts Connexion is where most of us got ours, and they do a great job of matching the pairs.

mgalusha · « **Reply #6 on:** 16 Feb 2009, 05:12 pm »

Night and day is a good way to put it. We tried my -DR's in Mike's Transporter yesterday and after a very short time he was just shaking his head knowing he was going to be laying out the cash.

ratso · « **Reply #7 on:** 16 Feb 2009, 07:39 pm »

okay, so in that case i have this:

Dear mike,
Thank you for your interest in our company.

We sell the 6H30nDP tubes that you requested @ $35 each delivered.

these are the same tubes as the US 6h30p-dr

Terms of payment: bank wire transfer or PayPal.
Our email address for PayPal payments is say4848@fastmail.fm
Sorry we do not accept credit cards.
Shipment: regular air mail within 8-18 days.
Warranty: 3 months limited.
Minimum order is 200 Euro.
Sorry we do not match tubes.
Shipping expenses will be less than 40 Euro for a parcel of less than 15 kg.
I attached summary tables with technical parameters of some tubes that we sell.
If you find a tube that meets you requirements please send your inquiry
and I will inform about its availability and price.
Sorry we do not have sockets.
---------------------------
Best regards,
Nikolay Ivashkin
www.tubes.ru
STC NavigatoR Ltd
Phone: +7-495-790-9018
Fax: +7-495-123-5394

so by my calculations that would be 8 tubes to meet the 200 euro's. i would be in for 2 if anyone else wants to take a chance?

ratso · « **Reply #8 on:** 17 Feb 2009, 01:02 am »

it appears as if i have started a little mini 'group buy' here. if anyone wants in, we have (so far) a commitment for 4 tubes and need 4 more. pm me or reply here if you would like to get in. it should be known that i know NOTHING about this place or their tubes. it appears as if they are new reissue russian made 6h30-DR's . for $35, if nothing else, it seems like a 'not much to lose' prospect for tube rollers. if we all get hosed, then sux to be us. if i don't get a commitment for 8 tubes by thurs the 26th, then i will forget all about this. oh BTW in case any one wonders about me, my name is ratso1 on Agon and i have tons of positive feedback. i will not rip off anyone.

cryotweaks · « **Reply #9 on:** 17 Feb 2009, 12:44 pm »

I'm in! Meaning I will take 4.

ratso · « **Reply #10 on:** 17 Feb 2009, 02:01 pm »

alrighty looks like we're on! if its okay with you gentlemen, i think i will place the order on the due date i gave above so anyone else that wants to get in can. if any of you are in a real hurry and that's no good let me know. i will email the company this week to get details and pm you guys with what i find out.

Philistine · « **Reply #11 on:** 17 Feb 2009, 02:06 pm »

If you guys are going down this path I would also suggest you include a pair of 6N6P's also - very similar to 6N1P's (lots of detail) but potentially less grainy, if they can be had for a few $ they add to the fun and are very good with some rectifier tubes. Maybe Nikolay can recommend which type as I see he has 2 varieties.

rpf · « **Reply #12 on:** 17 Feb 2009, 07:32 pm »

I'm interested. My only concern is that they're not matched (I use them in my MW 36.5 line-stage). Thoughts anyone?

If we order a bunch, perhaps we could have them matched as well as could be before they go out to the individual buyers? If so, I would go for 2 pairs.

Rob

ratso · « **Reply #13 on:** 17 Feb 2009, 07:35 pm »

dunno rob, all i know is that they state no matching. i could ask them when i email them and report the results in this thread.

ratso · « **Reply #14 on:** 17 Feb 2009, 07:37 pm »

or maybe i misunderstood you. since i will be sending them out, i will have no means of matching as i have no tester. if anyone has a tester and this was important to the group, i could send ALL the tubes to that person and they could test/match as best as possible, but they would have to agree to it and i think for fairness, everyone would have to give the o.k. if everyone wants this we could set up a lottery system, winner gets the best matched, next best goes to second place, etc.

rpf · « **Reply #15 on:** 17 Feb 2009, 07:39 pm »

Quote from: ratso on 17 Feb 2009, 07:35 pm

dunno rob, all i know is that they state no matching. i could ask them when i email them and report the results in this thread.

I was actually suggesting that we could get them matched after arrival - as well as could be obviously, given the limited number of tubes involved. Where are you located?

Rob

rpf · « **Reply #16 on:** 17 Feb 2009, 07:44 pm »

Quote from: ratso on 17 Feb 2009, 07:37 pm

or maybe i misunderstood you. since i will be sending them out, i will have no means of matching as i have no tester. if anyone has a tester and this was important to the group, i could send ALL the tubes to that person and they could test/match as best as possible, but they would have to agree to it and i think for fairness, everyone would have to give the o.k. if everyone wants this we could set up a lottery system, winner gets the best matched, next best goes to second place, etc.

Yes, that is what I meant. What you're suggesting about a lottery makes sense: even the last person on the list might end up with better matched tubes than a random pairing. I don't have a tester (yet: it seems more and more like I should get one

), but lots of people do, so we could probably find someone to do it even if it involved a small fee.

ratso · « **Reply #17 on:** 17 Feb 2009, 07:50 pm »

it would probably get kinda expensive (and time consuming) shipping these all over the place to test them, so maybe the best thing would be if any one knows of someone who could test them for us in my area, i would be happy to drive out to them to do it. i am in the chicago area. we could all pitch in a buck and i would show up with a 6 pack of their favorite beer. i'd even help them drink it.

rpf · « **Reply #18 on:** 17 Feb 2009, 09:54 pm »

I wouldn't mind spending $5 a tube to have them matched (the going rate from dealers) - the tube price is really low to begin with. I don't know how others feel. However, it's your show and there must be someone in Chicago with a tester

.

JoshK · « **Reply #19 on:** 19 Feb 2009, 12:14 am »

Just a quick tip, fwiw. I wouldn't get too picky with matching. Just make sure the tubes are somewhat close to eachother. The reason why it doesn't matter too too much about matching is do to operating point. Testers test at one operating point but your circuit can be entirely different operating point. There is no gaurantee that a pair of matching tubes at one point will match at another. They should be relatively close over their range if they were close at one point, so it only makes sense to get them near eachother. My $.02.