solarburnDSL50

This is a great thread. I love to roll tubes too. Looking forward to the next experiment.

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

Marshall Amps

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Marshall Amp Forum

joshuaaewallen

Hey There solarburnDSL50,

Could you tell me about your rig and what you like to play?

I see in your signature you list your tube compliment as:I am curious about these tubes and why you chose them...

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

solarburnDSL50

Well I love playing the blues, classic rock and up to hard rock. Classic stuff I like are early Sabbath, Iron Maiden, ACDC, early Rush, early ZZ, Molly Hatchet, Nugent, GNR etc. You know, mostly Marshall tunes he he.

I like my amp to be harmonically rich, singing feed back, responsive to touch with good sustain and articulate. Can clean up with guitar volume roll off. So I look for tubes that help create these things in my DSL50.

The preamps I'm using now are a nice fit for what I want especially from clean to midgain tones. The CV4024 has a gain factor of 60 compared to a 12Ax7 at 100. It made the gain more articulate and didn't neuter the gain of the amp by any means. The AC5's just sound good and the LPS makes a great PI.

With this combo the amps EQ actually works when adding highs, mids and lows. That's another tell tale sign of having a grouping of tubes that work well with my amp and what I'm after.

To finish off my tone stack I always boost to get a better texture of gain, not more gain. Mostly to add some body to the tone that the amp isn't capable of producing on its own. That's how I roll my DSL and I love the amp.

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

MartyStrat54

I think that the Westinghouse 12BZ7 is a winner! Thanks Mate! You are the bestest Marshall bro ever!

Well, I've been doing this long enough to know that there were only a couple of possibilities for the Raytheon to be acting up, microphonic tube or the amp didn't like a 12BZ7. Since I have played Marshalls with 12BZ7's, the logical choice was a microphonic tube.

It all worked out, as the Ebay seller is refunding my costs on the Raytheon and you got one of my nice Westinghouse tubes. I should have just sent you that one in the first place, as I knew it was good.

Have fun, but don't let it consume your life. It can be addictive and now that you have even more tubes, the combination of tube patterns can get mathematically staggering. Sounds to me like you already found a great combination.

Marty

joshuaaewallen

Far out.

I'm not familiar w/ the AC5 or the LPS... What are those like?

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

joshuaaewallen

Any cost difference between the Raytheon & the Westinghouse? You really went out of your way to get me hooked up, and I feel like I owe you for your trouble.

No worries... I can't afford to let it consume my life. Besides, as nice as it is to have pleasant distractions, when they take too much time away from more important things, they just become a burden. But anyways...

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

solarburnDSL50

AC5 is:
The Chinese 12AX7 (made by Shuguang) tube is popular with Marshall owners for its gain and bite. It is currently re-branded by both Ruby Tubes and Groove Tubes.

Usually I use Tung Sol in the preamp but I tried the AC5's and they turned out to be really good in the DSL.

The Sovtek LPS from the tubestore.com:

This is an entirely new design from Sovtek and a great step up in sound quality. They have very large ribbed plates and great sound reproduction. I found them very smooth and well balanced in terms of bass, mids and treble response. The large plates make them more prone to microphonics and in combo amps, so they can be a problem if you like to run things wide open. It is still the best thing Sovtek has produced in a 12AX7, with very good gain and low noise. I would advise against using them in compact high-powered combo amps where they will be subjected to lots of vibration.

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

MartyStrat54

The preamps I'm using now are a nice fit for what I want especially from clean to midgain tones. The CV4024 has a gain factor of 60 compared to a 12AX7 at 100. It made the gain more articulate and didn't neuter the gain of the amp by any means. The AC5's just sound good and the LPS makes a great PI.

Here again Josh is but another example of what I've told you and that is not every Marshall player wants or needs a 12AX7 in V1. Here we have a 12AT7 being used. (He probably would have liked the worn out Tung-Sol 12AX7's that I sent back! They probably had a gain of 45 to 60.)

The 12AX7 and the 12BZ7 both have a gain of 100. However, when placed into an actual circuit (with resistors) the gain drops some. However, since the 12BZ7 has half the resistance value of a 12AX7, it provides more gain in the actual circuit.

Some other tubes with lower gains are the:

1.5751 with a gain factor of 70. This tube can really kick butt in some amps.
2.12AZ7 with a gain factor of 60. Rare, hard to find tube.
3.12AY7 with a gain factor of 40. Difficult to find. Works well in Fenders.

There are a whole bunch of tubes that have gains of 17 to 37, but they were never used that much in medium/high gain applications. There are also a whole bunch of tubes that are out of stock, very difficult to find and were superior to a 12AX7. Some of these tubes go for $100 to $250 "each."

Another topic I have stated before is, "Marshall has found a way to make their amps sound good using the currently available tubes."

We have the option to find old tubes and swap them out for the stock ones. This may go on for another four or five years, but after that, all that we will have is the JJ's, New Sensor and Chinese tubes. At least we know that our amps sound decent with them. And hey, maybe in four years or so, these current tube manufacturers will make a better product that will rival a 1959 RCA Black Plate 12AX7. Hey, maybe they will make a copy of a 59 RCA Black Plate? Wouldn't that be sweet?

The future of our sounds all depends on the companies that are making tubes now. I would like to see them step up on quality control and improved designs.

Marty

joshuaaewallen

How's this for rambling on...

Well, the wife is out scrap-booking w/ her friends, so I have the house to myself. Well, myself and our four dogs. Sucks that I have a cold and everytime I take a breath I hack up a lung, . But... At least I can play a bit...

Tonight I have been playing around with that RCA 12AX7A.

First, since I have had such success with the 1961 GE 12AX7 and the Westinghouse 12BZ7 in slots V1 & V2 (respectively), I figured I'd pull the GT out of V3 and try the RCA tube in there. With this arrangement there is a wee bit of hum... Not the microphonic feed back I got before w/ that other bad tube, but hum coming from the speakers. There were some very interesting warm and round kinda over tones coming into my chords that were pretty cool, and with the neck pickup it was a pretty sweet dirty bluse kind of sound, but... Muddy. Actually it was too muddy for my taste on either pickup. Too bad, because overall for the sheer uniqueness of the sound, this was the spot I liked the RCA in best. It was just too noisy and too muddy.

So... I proceeded to try it out in all the other spots too. I next put the Westinghouse 12BZ7in V3 and the the RCA 12AX7A in V2. Better, less muddy, but the high strings were too brassy. Not my thing, as I hoped more for a brighter version of what it sounded like in the V3 slot.

Next up... I put the 1961 GE 12AX7 in V3, the Westinghouse 12BZ7 in V1, and the RCA 12AX7A in V1. Still no go. I think the tube has potential, but I'm not sure if it's right for this amp... But...

Undeterred, I figure, well... I know I like the sound w/ the 1961 GE 12AX7 in V1, the Westinghouse 12BZ7 in V2, and the Groove Tubes ECC83/7025 12AX7R in V3, so... Now I pulled out JJ ECC83S 12AX7S out of V4 and popped the RCA 12AX7A in. Better. Much better. Especially when I actually can turn it up past 1! Suffice to say any higher than 3 and being in the same room becomes pretty uncomfortable. I guess now I'll try a direct comparison in V4 between the JJ & the RCA... But not tonight. I need to get some rest. I have to get my hide up in the morning.

Cheers!

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

solarburnDSL50

Great posts and I'm soaking it all in. I love to hear how these tubes work in other's amp circuits cause it may be just what I'm looking for or interested in.

I tried the JJ ECC83S in my circuit and they were dull and flat and EQ adjustments didn't help. I tried one in my HT Dual pedal as well and got the same result. I don't like them with my ears and in my amp. I know quite a few Marshall guys that do. What can ya do but decide for your self. Here are some other preamp tubes I liked in my circuit:

V1- Tung Sol, new Mullard, LPS, Electro Harmonix.
V2- Tung Sol, JAN Philips 12AX7WA
V3- Penta 12AX7 which is a version of the 9th gen Shuguang 12AX7.
PI- I really haven't experimented here yet except I did try the JAN GE 5751. I didn't like it.

All of those are 12AX7's except the 5751. Out of the preamp tubes I've tried so far I only have 2 I didn't want to use at all:
1. JJ ECC83S
2.JAN GE 5751

I also like the new Mullards. I will prolly replace the AC5's in V2/3 with Mullards down the road and see what I get.

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

joshuaaewallen

I hear ya. That's exactly the type of real world feed back I was hoping for when I started this thread. I comprehend just barely enough to be dangerous, and since I'm not an engineer technical specs are very difficult for me to wrap my thick head around...

So far the only spot that the JJ ECC83S (12AX7) seems to fit nicely in my rig is in V4 my phase inverter... Probably because as the reviewer from The Tube Store noted, "While not as harmonically rich as others I tested, they do provide high gain without the usual noise and microphonic problems you would expect." I think have observed that in my rig when I have the JJ in V4 the amp is quieter with less, if any, hiss, hum, buzz going on in the back ground. It does seem to smooth out the rough edges when placed in that spot. (Of course it could just be the most balanced tube I have and thus work best in V4 for that reason...)

I agree. I have a JJ Gold pin and a regular JJ, and as I've stated, so far the only place they seem to fit well in my rig is in V4. The other tubes I've been trying just seem to have more layers to the tone, more audible texture (I know that these are pretty poor descriptions, but nothing else seems to fit...) that I can hear.

I'm not sure what frequencies they are bringing out, butthe 12BZ7 & the GE tubes I am running really have a lot of depth and chime. I really think they are my winners for V1 & V2.

So far I am liking, amazingly enough, the Groove Tubes ECC83/7025 12AX7R in V3, and the JJ in V4. I think V3 & V4 are the slots to fill now. I will start playing around with those now and leave V1 & 2 as they are. The trick is for V4 I need a good balanced tube to keep things quiet and what not.

Well... I gotta make like a banana and split. If ya have any other thoughts on this subject, please send 'em my way. Ciao!

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

solarburnDSL50

I'll get back in the thread later too. I work the graveyard shift so I need to be sleeping now. Catch up with you guys later.

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

joshuaaewallen

I hear ya mate. I don't work the graveyard, but I've been sick and am pretty wiped out myself. In fact I actually just returned home from the doctor's and as luck would have it... ... I have bronchitis and a sinus infection. Joy of joys. That being said... I'm gonna follow your example and get some rest...

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

joshuaaewallen

In general, is it better to start with a lower gain tube (say a 12AY7... which I actually used to have one, but it went bye bye when I sold my Valve Junior) in V1, then gradually increase the gain factor of the tube by using a 12AZ7 (for example) in V2, then a 12AX7 or 12BZ7 in V3, and round out v4 w/ a nice balance 12AX7? Or is better to start high and decrease the gain factor with each following tube (i.e. the reverse of the layout I just mentioned)? Or does it matter?

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

MartyStrat54

I can't answer that. It is entirely up to you and your style of playing and your taste. In the real world, the only lower gain tubes that you can find and afford are 12AT7's and 5751 with gain factors of 60 and 70 respectively. You can take certain preamp tubes and get a Marshall sounding too much like a Fender. An example would be putting a 5751 in V1 and V2. The amp would have a cleaner, overall sound. It's not going to crunch as well, because it doesn't have enough "gain" to get crunchy. So what you have is a Fender clean and if you use pedals, well it would work quite nicely. An OD pedal or good distortion box will push those 5751's and then you would get some bite.

That's how some people like to play. Others want as much friggin' gain as possible out of the amp. So is there guys that use 12BZ7's in V1 and V2? You bet there are and I guarantee that their amps are on the verge of taking off like a rocket! If you did any sort of knob cranking, the amp would start to feedback, so you would have to be on stage with a 50 foot guitar cable manipulating the volume to control the thing (or have taken lessons from Ted Nugent). And this is how some people like to play.

I personally like the RCA 7025 (super quiet 12AX7) in V1 with a real solid USA 12AX7(A) in V2 (like a Black Plate with thick mid's). As I've said in prior threads, the signal is going through two tubes, but 4 separate gain stages. I round it up with a couple of sweet Balwin Green Labels made by Raytheon in 1961. Most of the tubes I use are pushing 50 years old. It amazes me that I can still buy them.

Of course you know that in my TSL122 I use a 7025 and three GE's. The GE's have shorter plates and are less prone to microphonics inside of a combo amp. (That's why a 12BZ7 tends to work better in a head instead of a combo. The 12BZ7 has longer plates on it and therefore has a tendency to be microphonic.) I think the GE's sound really good. It's the only amp that I have were I am running three of the exact same tubes in the preamp. I've tried this amp with West German EL34's, but I actually like it loaded with KT77's the best.

So Josh, it's all about your style, how much gain you need and the effects you use. There are guys out there right now that haven't changed their preamp tubes in five years and they think their amp sounds killer. If I was to put a new set of tubes in their amp, they would S**T all over themselves. People are funny that way. Someone can play Hendrix note for note, but not know how to put tubes in his amp (that's what tech's are for).

Anyway, keep experimenting. At least there are three of us (SolarBurn) in on this. Maybe I'll get around to doing some of it myself. However, I would like to do it with currently available tubes, just to see how they hang against the NOS USA tubes.

Marty

joshuaaewallen

I wouldn't have it any other way. One of the things I've always loved about the guitar is that even though there are "technically correct" ways to do things... In the real world there's no wrong way. You can use any technique or piece of gear you like and if it gets ya there, then... It's mission accomplished!

That would be cool too... As you have already stated, NOS tubes won't be available forever.

I just ask a lot of these questions to get a better general understanding, because in the end after thought, trial, and a few failures... I'm gonna pull a Frank Sinatra and do it "my way..."

Thanks again for the feed back Marty.

: dude:
PS. I know this isn't EL84 based, but have you see this...

New Marshall Amps!

Marshall Amps :: Haze Overview

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

solarburnDSL50

Hi Marty. Thanks for the great info here. A big reason why I don't try to use more NOS stuff is I can't test it to see if I'm getting what I paid for. You have a great set up going to be able to test them. I'm not going to trust others enough to spend that kinda money on tubes and then get a fake or faulty one.

So I'm stuck using current day tubes which I hear is a real crap shoot. I buy my tubes from a vender that tests them as well as burns them in. He also will replace a bad one if it happens. I got my JAN Philips 12AX7WA and my CV4024 Mullard from him as well. I'm working through using what is available now. Its been fun so far with the DSL. Learned how to retube it and bias it. Once that happened I was off and running lol.

Anyways thought I'd give you an idea where I'm at with roll'n tubes and that I am really interested in others experiences. I'm one of those guys who likes to boost for better gain texture as well. Great tubes and a good boost pedal = Nirvana for me with the DSL. I better quit writing or this will be a mile long.

Joe

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

MartyStrat54

Hi Marty. Thanks for the great info here. A big reason why I don't try to use more NOS stuff is I can't test it to see if I'm getting what I paid for. You have a great set up going to be able to test them. I'm not going to trust others enough to spend that kinda money on tubes and then get a fake or faulty one.

So I'm stuck using current day tubes which I hear is a real crap shoot. I buy my tubes from a vender that tests them as well as burns them in. He also will replace a bad one if it happens. I got my JAN Philips 12AX7WA and my CV4024 Mullard from him as well. I'm working through using what is available now. Its been fun so far with the DSL. Learned how to retube it and bias it. Once that happened I was off and running lol.

Anyways thought I'd give you an idea where I'm at with roll'n tubes and that I am really interested in others experiences. I'm one of those guys who likes to boost for better gain texture as well. Great tubes and a good boost pedal = Nirvana for me with the DSL. I better quit writing or this will be a mile long.

Joe

Glad to met you Joe. You seem like you know your way around the backside of an amplifier. It's true what you said about not having a tester. I'm seeing more and more sellers on Ebay claiming they are selling good tubes and they turn out to be worn out pieces of s**t. I've made five returns in the past month all on preamp tubes. I had a guy I bought from, but he's all sold out. He made enough money to buy a nice sports car off of the tubes he sold on Ebay. You could trust him. He was honest.

Some of the tubes I returned are being sold again on Ebay! Those people don't care. Hell the next buyer won't have a tester and they'll think they are getting good tubes. <That's too bad.> The better sellers list the tube tester they own and what the test results are.

I'm sad that Ei went out of business. They made the best modern 12AX7's and EL84's. Now their tubes are going for $25 for one new 12AX7. I play my cards right and I can get two RCA gray plates for $25 on Ebay. I'm not real crazy about the Chinese tubes, but there are people who swear by them in their Marshall amps. Right now, I think there are just three, Russian tube makers, JJ, Winged C and New Sensor. New Sensor sells Mullards, Tung-Sol's, EH, Sovtek, Svetlana and even Genalex Gold Lions. They are all made at the same plant and it makes you wonder what the real difference is between a Mullard and a Tung-Sol 12AX7? To me, the tube looks the same.

Well Joe, I want to thank you again for joining our little party here. People like you are always invited. Hope to hear more from you.

Marty

Doctor_Zoidberg

FYI
Amp Workshop - Message Board - Yuku
This forum is worth having a look at for anything to do with valve amps.

Doc Z

joshuaaewallen

Thanks for the good resource Zoibberg. Looks like there is some useful discussion going on over there. Rock on!

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

Doctor_Zoidberg

Yep, it's a good forum. Most of the long time members are very technical and can sort out almost any problem with any valve amp, and it is a very friendly board.
It's a good place to lurk even if you never join, you can pick up some very good tips and info.

Cheers

Doc.Z

solarburnDSL50

Very cool addition. Thanx Doc!

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

MartyStrat54

I signed up two days ago. I needed a user name, so I came up with something original...MartyStrat54. Yeah, I kinda like it.

Marty

solarburnDSL50

I changed mine a hair to SolarEclispe. I don't know what's with the Solar tags either...

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

MartyStrat54

I couldn't help myself and I'm on the hunt for 12AX7's. I just bought a NOS RCA made by Mullard of Great Britain. Claims to test at 124/122! Gray, ribbed plates. Looks to be brand new as the logo is all there. The seller didn't specify a date code, but I'm thinking the early 60's.

One of my favorite sellers is back on Ebay with a slew of 12AX7's. His handle is reedl1712. I think he is an organ repairman because he sells a lot of rebranded tubes like Baldwin by Sylvania. He gives free first class shipping and he completely lists his test results. A real fair seller with real fair prices. I will be bidding on some of his tubes. He has a quad of Mullards that I'm looking at and some Tung-Sol's as well.

Wish me well!

Marty

joshuaaewallen

Go Get 'Em Tiger!

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

solarburnDSL50

Now that sounds like a great connection. Let us know what you end up with from your favorite seller. 124/122 is high gain eh. I hope its a good'n. Definitely want to hear what ya think on that one.

__________________
Wilder modded DSL50
Martimus Maximus preamp stack- "NOS juiced"
6CA7EH's

Recommended:
FJA Mods
Wilder Amplification

joshuaaewallen

Marty,

I popped on eBay and looked at all his listings. Looks like a number of potentially cool tubes to try. And if he's actually a reputable seller, that is just plain awesome. Maybe in a week or two I'll sacrifice another Taco Bell dinner to the god of tubes and bid on one or two... Thanks for the tip Marty.

Josh

PS. I did notice that on some the listings for pairs, he shows the test results, tells you about the tubes, and comments that one is microphonic. It's cool that he actually will tell you that a tube is microphonic, but from my little experience w/ microphonic tubes (limited I know), why would someone willing buy a microphonic tube? What are they good for?

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama

MartyStrat54

They will work in certain HiFi amps, especially with a damper ring on it. HiFi amps do not generate chassis vibrations like one would find with a gigging musician's rig. Some were rated "slightly microphonic," with the tube needing a pencil rapping it to become microphonic. Of course, he wasn't beating the hell out of these tubes, because you can damage them, but he was tapping them hard enough to see if they would start oscillating. I'm proud that you noticed that in the listings.

He is one of the few tube sellers to list tubes the way he does and the best part is his shipping is free. He normally sells in pairs or quads. I bypassed all of the microphonic listings and I am only watching the tubes I know I can use in a guitar amp. (Remember, a combo amp is harder on preamp tubes than a head simply because of the close proximity of the speakers to the chassis and the vibrations the speakers give off.)

If you remember my tube tester recommendations, one was a Hickok. That is what Reed uses. It reads a lot differently than my B and K 707. What's nice is that he will give you a "new" reading and then his readings. Some test better than new and some don't. Some are balanced and some are not. He tells you all of that.

Marty

joshuaaewallen

Hey Marty,

Did ya ever get those tubes that were listed on eBay? I've been doing tons of experimenting w/ my small stash, and love it. I'm going about it a lot more hap-hazard now, but it's still plenty-o-fun.

Josh

__________________
Josh

2004 PRS Custom 24 10 Top
1999 Marshall JCM 2000 TSL 122
- Power Tubes: JJ EL34L's
- Assorted New & Vintage pre-amp tubes... I like to roll...
HardWire DL-8 Delay/Looper


http://irkinempire.spaces.live.com/
http://irkinempireoutpost1977.blogspot.com/

"... When you do things right, people won't be sure you've done anything at all." - Futurama