TUBES(pre, power, rectifier) share your list of tubes

164

True, and I still only do that while the tube is cool, and definitely not hot or while running in amp.

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165

Does anybody have suggestions for tube literature that might get me beyond tube basics, but that doesn’t require an electrical engineering PhD to understand? I feel like I’ve gotten through the baby steps of learning the difference between a rectifier, input, and power tube, some of the interchangeability, and so forth, but I’d like to try to get to more of the “why” and “how”. I’m guessing someone has written a book or textbook somewhere, and wanted to throw out the question to the experts.

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166

Did some digging on YouTube, and this wasn’t a bad start: https://youtu.be/oHjZs0bNwEs

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167

“Uncle Doug”
I have found this guy helpful. Now he’s more focused on guitar amps, but the tube theory is still the same. He also has a bunch of videos on how other parts of the amp works, like the psu, capacitors, overall amp designs etc.

Part I

Part II

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168

Here are a couple of vintage black & white videos that may not be what you’re looking for, but I found interesting:
The first is an instructional video on how a tube works. The second was made by Mullard to explain how their tubes were made.

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169

Below are some resources:

http://audiotubes.com/books.htm

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170

Posted some tube rolling impressions in the Euforia thread, thought it might fit in with this thread as well.

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171

Super cool. Never really understood how tubes worked. Really amazing.

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172

Hi everyone, haven’t been on here in a long time do to health issues,

Wanted to post this information for the owner of Tubemonger

Fo

We apologize for regularly running out of stock on our popular Socket Savers and Adapters and Flying Leads CV 4033/4034/4035 Tubes. Last year+ has been challenging due to Covid related shipping delays and stolen packages full of adapters and socket savers.

For efficient service, you can NOW order NOVIB SOCKET SAVERS, ADAPTERS and Flying Leads tubes like CV4033, CV4034, CV4035 and CV4001 directly with our Engg Facility. Shipping is Flat Fee $8 via FEDEX for any number of items in a single order.
https://pulsetubestore.com/ (NOT MADE IN CHINA)

IF Out of Stock on this site, you can order these factory direct at pulsetubestore.com. Click on the above banner.

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173

Thanks @jb77!
(20 characters)

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174

Nice to see you back @jb77.

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175

Hi everyone, I am listening some of my 12au7 tubes for sale
(Link below)

12AU7 variants

  1. Mullard Blackburn goal post getter ECC82
  2. Brimar CV491/12AU7/ECC82 Long Plate Square Getter England 1958
  3. Valvo 12AU7 ECC82 Germany, Hamburg Made Tubes (GfO D9E), SlantedGetters
  4. Amperex 12AU7 BugleBoy
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176

Hi everyone, I am listening some of my 12at7 tubes for sale
(Link below)

12AT7 variants

  1. Valvo Hamburg Pinched Waist 6201 double post O getter 1959 blue label
  2. Mullard Blackburn ECC81 56/57 square getter
  3. Mullard Mitcham ECC81 1956 square getter
  4. Heerlen E180CC/7062 1957 PW
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177

Also listing my Hagerman Audio Labs Tuba (Tube amp) for sale

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178

Does anyone here have experience with vintage Soviet made tubes? Would they be worth pursuing?

179

Perhaps try searching through this member’s posts.

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180

Depends on what you’re using them for. I have a Decware amp and the power tubes are Russian. I have yet to find an el84 that works as well as the Russian variant.

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181

Picked this up awhile back. I don’t use it much but the novelty is pretty cool!

image
image1920×2560 297 KB

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182

Hello and welcome @kion.

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183

I picked up some Acme 2a3’s secondhand for my Stratus but one tube is making a repetitive clicking noise that can be heard during quiet parts. The volume does not change the sound and it is not from any interference. Has anybody dealt with this and could it possibly go away after a long burn-in? I bought them with only 100 hours.