Skip to content
Question about remo...
 
Notifications
Clear all

Question about removing tubes.

17 Posts
6 Users
0 Likes
4,670 Views
E.Sherman
(@e-sherman)
Reputable Member
Joined: 18 years ago
Posts: 374
Topic starter  

I've had this sweet deal fall into my lap of a Gibson Goldtone, the thing sounds amazing, great clean, and when you crank it, the distortion is fablous.

However, this thing is VERY loud. I don't exactly have 300 bucks to shell out for a Hot Plate or somesuch ( talk about a monopoly). I'm 90 percent sure there are four power tubes ( I'll have to go down and check to be completly sure)...if I take two out, is that harmful to the amp? I assume the headroom would be lower, but are there any other pros or cons to this?

EDIT- I don't know if helps or not, but it's a Class A stereo amp.

The king of rock, some say lives
the lizard king, is surely dead
the king of France, lost his head
the King of Kings... bled
( email me at [email protected](com). I almost never check my hotmailaccount.


   
Quote
forrok_star
(@forrok_star)
Noble Member
Joined: 19 years ago
Posts: 2337
 

There are a few other one's like the Weber's MASS, you can also from time to time find a couple called Altair or Rockman power soak on E-bay for less than 100.00 us. All three are great units. Please remember that using one dosen't mean you should turn your amp full tilt. The trick is to find the ampss weet spot. Which is were the amp sounds and operates best with-in it's spec's.

Dosen't that amp have a switch that drops the power in half? I know some of them did.

Joe


   
ReplyQuote
E.Sherman
(@e-sherman)
Reputable Member
Joined: 18 years ago
Posts: 374
Topic starter  

No, it has no switch like that, but I've rigged a small solution where I dummy plug one of the external speaker jacks, which cuts out one of the speakers. This dosen't help as much as I'd like, though.

I read that powersoaks fuction differently in that they only drive the preamp tubes, where a hotplate does it differently. I know that it's the driven powetube sound I'm after, so does a powersoak help with that? What makes it different?

The king of rock, some say lives
the lizard king, is surely dead
the king of France, lost his head
the King of Kings... bled
( email me at [email protected](com). I almost never check my hotmailaccount.


   
ReplyQuote
E.Sherman
(@e-sherman)
Reputable Member
Joined: 18 years ago
Posts: 374
Topic starter  

Hmmm, the price seems much more reasonable for the Weber models. It says on the site that you should choose one that's double the wattage of your amp. Is this an ironclad rule? The Goldtone is 30 watts ( technically it's two 15 watt amps that run in stereo)...so would a 50 watt be ok, or would I have to shell out for the 100?

The king of rock, some say lives
the lizard king, is surely dead
the king of France, lost his head
the King of Kings... bled
( email me at [email protected](com). I almost never check my hotmailaccount.


   
ReplyQuote
forrok_star
(@forrok_star)
Noble Member
Joined: 19 years ago
Posts: 2337
 

I not sure where you heard that power soaks work off the pre-amp tubes. They misinformed you on that. A Scholz Power Soak connect's between the speaker out and the speaker, the same way a Hot plate, Marshall Power Brake, Rocktron juice extractor or other attenuator's are connected. There are also different types.

I use both dummy-loads and Attenuators. Combined with equalizers make for a great investment to your signal chain.

joe


   
ReplyQuote
Ricochet
(@ricochet)
Illustrious Member
Joined: 19 years ago
Posts: 7833
 

As for removing tubes, that generally cuts the power in half, but a reduction of power by half makes a barely noticeable difference in apparent volume. Because the impedance is now wrong, you'll get more distortion and it'll come on a little earlier, so that might let you turn down the volume a bit and feel like you're getting "saturated power tube sound," but I don't think it's worth fooling with pulling tubes.

The only way pulling tubes can actually be harmful is if an amp is cathode-biased and shares a cathode resistor between more than one tube. In that case, if you pull some tubes, the remaining ones will overheat.

"A cheerful heart is good medicine."


   
ReplyQuote
E.Sherman
(@e-sherman)
Reputable Member
Joined: 18 years ago
Posts: 374
Topic starter  

Yeah, I didn't really want to take out tubes either.

So what is the difference between a powesoak and something like a Hot Plate? Do they sound different, are there any other pros/cons?

The king of rock, some say lives
the lizard king, is surely dead
the king of France, lost his head
the King of Kings... bled
( email me at [email protected](com). I almost never check my hotmailaccount.


   
ReplyQuote
Ricochet
(@ricochet)
Illustrious Member
Joined: 19 years ago
Posts: 7833
 

A Hot Plate is just one brand of dummy load. Power Soak is another.

"A cheerful heart is good medicine."


   
ReplyQuote
forrok_star
(@forrok_star)
Noble Member
Joined: 19 years ago
Posts: 2337
 

Either one will work for what your looking to do. The Hot plate is newer technology and also has more options, where as the power soak only allows you different Ohm settings and -dB. I have both of them and the Hot Plate out weighs the power soak in tone also. It comes down what your looking for in terms of tone.

Joe


   
ReplyQuote
E.Sherman
(@e-sherman)
Reputable Member
Joined: 18 years ago
Posts: 374
Topic starter  

OK then, I'm leaning heavily towards the Weber then. It's quite a bit cheaper than the Hot Plate, but seems to use the same technology.

The king of rock, some say lives
the lizard king, is surely dead
the king of France, lost his head
the King of Kings... bled
( email me at [email protected](com). I almost never check my hotmailaccount.


   
ReplyQuote
forrok_star
(@forrok_star)
Noble Member
Joined: 19 years ago
Posts: 2337
 

I recall Wes saying he has one of them. It will be a great advancement on your quest for tone.

joe


   
ReplyQuote
kingpatzer
(@kingpatzer)
Noble Member
Joined: 18 years ago
Posts: 2171
 

You can walk into any wholesale electronics shop and buy a 100w attenuator for audio circuits for less than $40.

A little soldier, some wire, a couple of 1/4" jacks and some fancy lettering labels will cost you another $10.

Two hours of work and you'll have a 100w attenuator all ready to go. And if you're at all unsure of what you're doing the guys in the store can talk you through it.

This is really very much a great beginner audiophile electronics project. Literally anyone who can solder can make this one work :0

"The music business is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There's also a negative side." -- HST


   
ReplyQuote
E.Sherman
(@e-sherman)
Reputable Member
Joined: 18 years ago
Posts: 374
Topic starter  

...mabye I'll try that someday. However, this is a discountinued amp, and it's very unique. I'm not sure that I really want to do that as this point. Plus, there must be more to it or else everyone would do it that way. There is also that fact that the Weber has a built in eq, and since this amp has no eq, that will help.

Again I ask: it's recommended to have an attenuator thats double the wattage of your amp. Mines 30 though...would I get away with a 50 watt one? There is a significant price difference for me, and I'd rather not spend the extra money on a 100w one unless it's totally nessicary.

Thanks for the advice!

The king of rock, some say lives
the lizard king, is surely dead
the king of France, lost his head
the King of Kings... bled
( email me at [email protected](com). I almost never check my hotmailaccount.


   
ReplyQuote
Ricochet
(@ricochet)
Illustrious Member
Joined: 19 years ago
Posts: 7833
 

it's recommended to have an attenuator thats double the wattage of your amp. Mines 30 though...would I get away with a 50 watt one? The reason for the recommendation is that, as we've previously discussed, most tube amps, when fully cranked, are actually putting out quite a bit more than their rated power. I think you'd get away with a 50W one, though.

"A cheerful heart is good medicine."


   
ReplyQuote
kingpatzer
(@kingpatzer)
Noble Member
Joined: 18 years ago
Posts: 2171
 

Plus, there must be more to it or else everyone would do it that way.

Nope. The simple fact is most people are afraid of doing stuff like that, so the markup for finished products is very high.

However, if you want to go with pre-built that's cool. You were asking for less expensive options and I was providing you with the lowest price entry point option since I hadn't seen anyone else mention it.

"The music business is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There's also a negative side." -- HST


   
ReplyQuote
Page 1 / 2