[Wind Chaser]

So I Googled "how hot do my tubes get?" Given the results, perhaps that was the wrong choice of words...

[JakeJ]

You just need to specify which tubes! 

[FullRangeMan]

Interesting thermal camera on 6C18/33:
https://www.youtube.com/watch?v=EaWHqNy7_5c

[mresseguie]

 

Are they hot enough that there's no need to turn the thermostat above 50 degrees F in winter?

Do you hang damp laundry above them?

Can you cook flapjacks with their heat?

In approximately 52 hours I'll be able to offer my opinion on how hot they are. 

See you on Saturday!

[FullRangeMan]

Are they hot enough that there's no need to turn the thermostat above 50 degrees F in winter?

Do you hang damp laundry above them?

Can you cook flapjacks with their heat?

In approximately 52 hours I'll be able to offer my opinion on how hot they are. 

See you on Saturday!

You will receive a 6C33 amp?
Post several photos, say anything in advance...

[Wind Chaser]

Are they hot enough that there's no need to turn the thermostat above 50 degrees F in winter?

Do you hang damp laundry above them?

Can you cook flapjacks with their heat?

In approximately 52 hours I'll be able to offer my opinion on how hot they are. 

See you on Saturday!

Yes, we'll see in two days. I was hoping my neighbor would have temperature gun as I'd like to get an idea as to how much heat each tube produces. Why? I'm looking at Herbie's tube dampers and I noticed they have different heat ratings.

[JakeJ]

I'm confident Herbie knows what the temps are for the tubes he makes dampers for.  Just buy the ones that fit your tubes, or discuss the sonic effects the various types he has for the tube you run and pick the ones you think will work best.  I have yet to get the HAL-O PTFE dampers for 9-pin tubes but I am running some that are similar to the UltraSonic metal ring dampers that have discs made of two different materials.  I don't see my particular ones on the site any more.

Hard to go wrong with Herbie's products.

Just another fanatic's .02.

[mresseguie]

You will receive a 6C33 amp?
Post several photos, say anything in advance...

Hello, FRM.

I just purchased a Don Sachs Model 2 (SP14) preamp. It's got four Shuguang CV-181(?) 6sn7 tubes. The picture Captainhemo posted is my preamp. It's still breaking in. I got practically every upgrade imaginable. I'm kinda hoping this will be my last preamp. [Assuming such a thing is possible!]

[FullRangeMan]

Hello, FRM.

I just purchased a Don Sachs Model 2 (SP14) preamp. It's got four Shuguang CV-181(?) 6sn7 tubes. The picture Captainhemo posted is my preamp. It's still breaking in. I got practically every upgrade imaginable. I'm kinda hoping this will be my last preamp. [Assuming such a thing is possible!]

Congratulations for the new machine.
What do you mean say by It's still breaking in.??
Tubes equips can not remain on around the clock.

[Pete Schumacher]

Congratulations for the new machine.
What do you mean say by It's still breaking in.??
Tubes equips can not remain on around the clock.

Why can't tube equipment remain on around the clock?  What if you want to play music continuously?

Of course they can be on around the clock.  You just reduce the longevity of the tube, that's all.

[FullRangeMan]

Why can't tube equipment remain on around the clock?  What if you want to play music continuously?

Of course they can be on around the clock.  You just reduce the longevity of the tube, that's all.

I mean say some tube amps arent built to run many hours.
I dont know what the case from the Mresseguie equip.
Starting post#14:
http://www.audiocircle.com/index.php?topic=113472.0

[Guy 13]

The old radios where turn on at 7am and shutoff at 10pm everyday.
My mother had a Motorola with plastic case,
that means the tubes were enclosed, not ideal compared to many
amplifiers today that have all their tubes open...
When I was young, that's a long, long time ago,
I've seen radios like Blaupunkt and the same that ran 10 - 20 years plus
without any tube replacement or repair...
Ahhhhh... The equipment of the good old days.... 

Guy 13
on planet Vietnam.

[Captainhemo]

You will receive a 6C33 amp?
Post several photos, say anything in advance...

My buddy has a pair of  6c33c mono blocks being built by Kevin at K&K Audio, we were hoping they'd be  here in time  for  Michael's (mressegui) visit but  not quite ready yet. SET  , all Lundahl transformers.... will post pics when they arrive

BTW, been giving Michael's preamp  some breaks  while putting some time on it for him.  The tubes run  extremely cool  on this preampo, warm not hot  Noone will be doing any cooking  or drying any laundry with this piece   

jay

[FullRangeMan]

My buddy has a pair of  6c33c mono blocks being built by Kevin at K&K Audio, we were hoping they'd be  here in time  for  Michael's (mressegui) visit but  not quite ready yet. SET  , all Lundahl transformers.... will post pics when they arrive

Thanks Jay, as a fan of 6C33 I look forward the photos, also you could PM w/the photos if dont wish post here.
Regards

[mresseguie]

FRM,

There is a nice thread in the Tube-o-phile circle entitled "Don Sachs SP14 Tube Preamp". This is where you will find conversation and photographs of my preamp and others' D Sachs preamps.

Enjoy.

[FullRangeMan]

FRM,

There is a nice thread in the Tube-o-phile circle entitled "Don Sachs SP14 Tube Preamp". This is where you will find conversation and photographs of my preamp and others' D Sachs preamps.

Enjoy.

Thanks Bro for your kindness.

[Steve]

Hi Wind Chaser,

Generally speaking, the vast majority of receiving and audio tubes are listed at approximately 250 degrees centigrade
(approx. 480 degrees F) at the seals/pins, at maximum plate dissipation rating (plus screen screen dissapation if applicable), 
with an ambient room temperature of 25 degree centigrade (77 degrees F), and proper natural air flow around the tube.

The bulb temperature could be higher since the plate is often a distance from the seals. I have seen transmitting tubes with 
glass suck in, due to plate dissipation over load and thus the high glass temperatures. Due to distance, the seals were still in tact.
(Some higher plate dissipation tubes may require a "blower" for proper air flow.)

Thus altering the plate, and screen, dissipation, and room temperature above or below will affect the actual seal and glass temperature.

Hope this helps.

Steve

[Guy 13]

A few years back when I got my Decware SE84C+ I knew that tube gear ran hot,
but with planet Vietnam ambiant temparature around 30 - 35C
I was worried that on long term the heat generated by tubes and the
other amplifier components would shorten the life of this little jewel.
I had a few small fans,
but all of them were too noisy,
so I took a table oscilating fan set it on low speed and put it on 120V. instead of 230V.
It give enough air to cool down the amplifier and I can't hear it, very, very quiet.
Of course, a fan near the set-up does not look nice, but between too much heat
and not too good looking.
I choose the second one.

Guy 13
on (SUPER HOT) planet Vietnam.