Lampizator Valve / Tube Rolling Review Thread

[Alrainbow]

Guys you can’t measure current at tube pins unless you put the meter in series’s with one pin to socket. If you put meter on amps and place leads across large pins you are shunting or shorting the heater circuit. The clicking you hear is the overload relay. Just out meter on Dc voltage. Then put leads on each large pin observe vintage. it needs to be close to tube spec. example a 300 b is 5 volts it will measure very close to 5 volts.
Heater current is determined by dc resistance when tube is hot not cold. if tubes are matched in brand type age it’s ok. if you want to know current use a tube adapter and place one meter lead in tube socket and tge other at tube pin. If negative reading it’s ok or reverse leads to correct. Readings are ok both ways

 

[dminches]

Guys you can’t measure current at tube pins unless you put the meter in series’s with one pin to socket. If you put meter on amps and place leads across large pins you are shunting or shorting the heater circuit. The clicking you hear is the overload relay. Just out meter on Dc voltage. Then put leads on each large pin observe vintage. it needs to be close to tube spec. example a 300 b is 5 volts it will measure very close to 5 volts.
Heater current is determined by dc resistance when tube is hot not cold. if tubes are matched in brand type age it’s ok. if you want to know current use a tube adapter and place one meter lead in tube socket and tge other at tube pin. If negative reading it’s ok or reverse leads to correct. Readings are ok both ways

This is similar to the response that I received from someone else (even though the reference was an amp, not a DAC).

@User211 ,comments?

 

[Alrainbow]

It’s the same no matter what you do on a dvm and leads. hope this helps

 

[Zero000]

This is similar to the response that I received from someone else (even though the reference was an amp, not a DAC).

@User211 ,comments?

Al is a bit difficult to interpret as he has a condition but I think what he is saying is what I said, essentially.

 

[dminches]

Al is a bit difficult to interpret as he has a condition but I think what he is saying is what I said, essentially.

This was the part that seemed different. Maybe it isn’t.

Guys you can’t measure current at tube pins unless you put the meter in series’s with one pin to socket.

 

[dminches]

Yes i prefer it more

Which rectifier are you using with it?

 

[Golum]

Which rectifier are you using with it?

This one...
Daily ACME, when i want to treat myself i plug in WE274b engraved base or WE422A...to expensive for daily casual listening with kids

 

[dminches]

This one...
Daily ACME, when i want to treat myself i plug in WE274b engraved base or WE422A...to expensive for daily casual listening with kids
View attachment 68345

I get that!

Did you compare this Acme to the RK 5U4G? I have an Acme and a Tak 274B. I don’t have any of the WEs. I think I sold my last one.

 

[Golum]

Did not compare with RD & Ad as output tubes as I packed RK long time ago. I liked ACME more since start and continued using it exclusively except as in the case i mentioned above. But I know not everybody agrees with me regarding ACME but that is the name of this game. Still Taka should perform better by a good friend of mine even better then WE274b (compared in amps not DAC). But even this being the case for me to expensive for daily usage (if i had it).

 

[dminches]

I am still waiting for the Pacific to break-in more before I pack it with my most expensive tubes. Of course, they will probably outlive me.

I have just under 50 hours on it at this point. I can still hear the sound changing from 1 listening session to another.

 

[Golum]

It will take some time to fully break in. I assume it has Lampi copper caps and those need quite some time, so buckle up and enjoy the bumpy ride for time being.

 

[Zero000]

This was the part that seemed different. Maybe it isn’t.

Guys you can’t measure current at tube pins unless you put the meter in series’s with one pin to socket.

Oh come on.

There is a single piece of wire between two terminals. It could NOT be simpler.

Watch some videos or buy a book on electronics.

It's total kids stuff.

Now I am being a bit rude because your post comes across as a wind up.

 

[dminches]

Oh come on.

There is a single piece of wire between two terminals. It could NOT be simpler.

Watch some videos or buy a book on electronics.

It's total kids stuff.

Now I am being a bit rude because your post comes across as a wind up.

I don't know what your problem is. I asked a legitimate question and all you want to do is fight. Al's comment seemed to indicate you can't measure amperage just using the tube pins. He states that clearly unless I misunderstood. I have no idea what a wind up is but why would I be trying to set up you up? We are just having a discussion about it.

Don't bother responding. I will figure this out elsewhere.

 

[Zero000]

I will figure this out elsewhere.

That's what I think you should do.

This is nothing more than I said it is. Really. It is super simple.

That's why I have taken offense.

The internet is a strange place and it's very easy to mis-understand people in a way you would never do in person.

 

[Jazzhead]

I get that!

Did you compare this Acme to the RK 5U4G? I have an Acme and a Tak 274B. I don’t have any of the WEs. I think I sold my last one.

Much prefer the RK5u4g ... Much more Density, tone and mid bass energy with good extension.. The Acme , nice and airy but more skeletal in its image. System dependant as well maybe, but it's their general characters I feel.
How's the TAK compare, full sounding?

 

[dminches]

Much prefer the RK5u4g ... Much more Density, tone and mid eight energy with good extension.. The Acme , nice and airy but more skeletal in its image. System dependant as well maybe, but it's their general characters I feel.
How's the TAK compare, full sounding?

I haven't tried the Tak in the Pacific yet. It was my preferred rectifier in the Big 7 but this could be different. I will report back.

 

[marty]

I get that!

Did you compare this Acme to the RK 5U4G? I have an Acme and a Tak 274B. I don’t have any of the WEs. I think I sold my last one.

see post 651
https://www.whatsbestforum.com/thre...lling-review-thread.26478/page-33#post-624497

 

[dminches]

see post 651
https://www.whatsbestforum.com/thre...lling-review-thread.26478/page-33#post-624497

Thanks Marty. I forgot about your detailed review. I think I tried to coax you into giving my Tak 274B a spin to add to your review.

 

[wisnon]

Hi Marty, How are you? Long time no chat...

 

[marty]

Hi Marty, How are you? Long time no chat...

Norman, doing well. Trying to avoid boredom mostly these days! Music always helps.
Marty