Did anyone stock up on tubes/valves

Ampmad,

Here is my quandry and forgive my lack of "like riding a bike"load math when it comes to 1,2, 4, 8 speakers wired in Series, Parallel or S/P.

OK, If I make a single 8 ohm cab, I get 8 ohm and need to run my amp at 8. But am I correct, if I wire the 2x8 ohm speakers in series in a 2x12, I will get 16 ohm? Likewise, am I correct, if I take these 2 same 8 ohm speakers and daisy chain them, I have to divide the load by 2 and only get 4 ohm? ( I DO NOT WANT TO EVER RUN 4 OHM.) Also,

I can deal with rolling a 2x12, even with EVM's. However, if you can tell me how to wire up 2- 1x12's and then how to connect them to the amp amd somehow to be the same as a single 2x12 @ 16 ohm, then this is what I need to see, wiring, jacks, etc wise.

Thanks
 
Last edited:
Thanks chef, I will review that link.

I know that when one joins 2 speakers, they can either be series or parallel. From the info I have, If done in series, 2- 8 ohm speakers will give you 16.
2 of the same 8 ohm speakers in parallel, yields 4 ohm.

Googling gives me this:

Unlike connecting speakers in parallel, connection them in series actually increases the impedance load, so connecting two 8-ohm speakers in series results in an overall impedance load of 16 ohms.

AND THIS:

If you have two 8-ohm speakers daisy-chained (wired in parallel) then the amp sees a four-ohm load.

Then I found this and realized something. Correct me if I am wrong.

If I make 2- 8 ohm cabinets and I have 2 or more output jacks on my amp, I can plug each speaker in and the amp/speaker will be operating at the rating of each speaker, so 8 ohm, and I need to set my ohms selector to 8. Or do I still add the 2 together and set the amp at 16?
 
Last edited:
ivan H said:
There appears to be good news on the Russian (Mike Matthews) tube front, this same is also on the Marshall forum
Electro-Harmonix Tubes are back! (but prices will go up)
Cheers
Click to expand...


For realz?

Aww man!

I was getting all psyched up for a dystopian, post-apocalyptic existence where vacuum tubes would be treated like currency due to their scarcity.

Frankly, I’m a little bummed.

I was just planning my trips across the wasteland, like Mad Max, to scour the country-side for tubes in a home-made rover constructed from two motorcycles and a rowboat.
 
smitty_p said:
For realz?

Aww man!

I was getting all psyched up for a dystopian, post-apocalyptic existence where vacuum tubes would be treated like currency due to their scarcity.

Frankly, I’m a little bummed.

I was just planning my trips across the wasteland like Mad Max to scour the country-side for tubes in my home-made rover made from two motorcycles and a rowboat!
Click to expand...
HAHA Smitty, I can see you driving your little car so chock full of tubes that you can barely see out of it to drive.
 
smitty_p said:
For realz?

Aww man!

I was getting all psyched up for a dystopian, post-apocalyptic existence where vacuum tubes would be treated like currency due to their scarcity.

Frankly, I’m a little bummed.

I was just planning my trips across the wasteland, like Mad Max, to scour the country-side for tubes in a home-made rover constructed from two motorcycles and a rowboat.
Click to expand...
Now that's funny, cracked me up, Cheers.

The near & (hopefully) short-term future may not be so rosie for the modelling, profiling etc type amps either. Most of the chip type components used in the music industry are made in Latvia, & also the Shenzhen region of China. The production of these components required the use of neon (in no small quantities).
Ukraine produces & supplies over 50% of the world's neon requirements, with Latvia having sourced all of theirs from Ukraine. As such there are already production issues. I'm not sure where China sourced their neon, but with the Shenzhen region in sever lockdown as they try to contain this lasted flu mutation, production of most things has ceased (even 'phones). So, the outcome of this is another thing that we can all speculate on. Cheers
 
ivan H said:
Now that's funny, cracked me up, Cheers.

The near & (hopefully) short-term future may not be so rosie for the modelling, profiling etc type amps either. Most of the chip type components used in the music industry are made in Latvia, & also the Shenzhen region of China. The production of these components required the use of neon (in no small quantities).
Ukraine produces & supplies over 50% of the world's neon requirements, with Latvia having sourced all of theirs from Ukraine. As such there are already production issues. I'm not sure where China sourced their neon, but with the Shenzhen region in sever lockdown as they try to contain this lasted flu mutation, production of most things has ceased (even 'phones). So, the outcome of this is another thing that we can all speculate on. Cheers
Click to expand...

Wow. I didn't know that about neon - definitely far-reaching impacts, for sure.
 
ivan H said:
Well, good news fellow valve (tube) amp lovers & users, the future is not as bleak as it was thought to be. PSVane is now in the process of transitioning from being a "hifi" valve supplier to being a dedicated "guitar amplifier" valve supplier. I "believe" the decision to do this was originally made about a year ago. This information came from a tube vendor/supplier to the audiophool world that deals directly with PSVane.

I think we all can agree that by a long shot, the guitar amplifiers (& to a lesser extent bass amplifiers, electric organs & their amplifiers etc) are the biggest consumer of audio valves in the world & use far, far more than the "audiophool" world does. But let's take a look at a few things that the audiophool world has done within the last 10~20 years in order to fulfill their valve requirements;

1) The Czechs at KR Audio in Prague have refurbished the old Marconi production tooling & machinery to produce audio valves approaching "old production" quality, ranging from types such as (an upgraded version of) the 6SN7, up on through to power valves like their flagship model valve, the mighty T1610 Triode, being shown by the owner/CEO of KR Audio below.View attachment 81374

2) The Czechs at E. A. T. in Prague refurbished "some" of the Telsa production machines (they sold most of the tooling & machines off), & then manufactured new tooling & machines needed to produce "old production" quality KT88 & 300B valves.

Both the above manufacturers use "hand assembly" techniques, previously used by all manufacturers from the very beginnings of valve production (most using these techniques up through the 1970's), to assure quality products, though E. A. T. take this to the extreme.
Both also manufacture very high end valve driven audio amplifiers.

3) PSVane in mainland China is made up of a group of engineers & technicians formerly from the Shuguang factory. They firstly commissioned the production of, & later acquired a production facility in order to produce themselves many audio valve types. The aim was to produce valves that were superior in quality to "other" current production offerings which they thought were inadequate.

It's a pity that the major manufacturers of valve (tube) guitar amplifiers haven't accomplished that which the audiophool types have in order to ensure a supply of quality valves.

So, have PSVane come to the conclusion that supplying the guitar amp tube market is a much more lucrative option & that we guitarists also appreciate quality valves to push past their limits? Have they been approached by one or more of the aforementioned valve guitar amplifier manufacturers asking PSVane to supply them? Who knows, all I know is that if what has been passed on to me regarding the future or PSVane is correct, it's in our best interest. Cheers
Click to expand...
Fuuuuk. By her expression they might be a perfect fit?
 
Last edited:
67plexi said:
First China factory burned down Russia stopped import or export of any product now overnight the stock is low and prices are high for US distributors
I can't believe just spent over $500.00 on 16 EL84 new production.
Click to expand...
I no like 84 premature break up! Or maybe it was the premature part that bit me in the pony?

I've got chit loads of sexy amp tubes. However as light bulbs go...they POP!

I was shopping around just to see? Make em last bro's. You Fuk'n bedroom players have nothing to worry about you .5 players!!!

I keed! Fuk off! No! Yes.
 
You must log in or register to reply here.
Back
Top