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Description
NOS PCC189 7ES8 EI Philips very quiet ECC88 SUB Variable mu -TUBE COMPRESSORBrand: EI Yugoslavia Country of Manufacture: Yugoslavia Type: Vacuum Tube Auction is for one (1) tube, balanced sections within 5% of rare PCC189 7ES8 made in EI tube factory in Yugoslavia back in 70s. These tubes are compatible with ECC88 6DJ8 in almost every application and you can often found them relabeled ECC88 6DJ8 Philips Holland or Siemens Germany. They are very, very quiet in RIAA preamps, thanks to the heaters wounded in different way than
Brand: EI Yugoslavia
Country of Manufacture: Yugoslavia
Type: Vacuum Tube
Auction is for one (1) tube, balanced sections within 5% of rare PCC189 7ES8 made in EI tube factory in Yugoslavia back in 70s.
These tubes are compatible with ECC88 / 6DJ8 in almost every application and you can often found them relabeled ECC88 / 6DJ8 Philips Holland or Siemens Germany.
They are very, very quiet in RIAA preamps, thanks to the heaters wounded in different way than ECC88.
I have few boxes of 100 pcs PCC189 / 7ES8 made back in 70s in EI Nis tube plant for export. These are premium grade, specially selected and with exceptional quality control for export under Philips, Siemens, Valvo and Telefunken brands. That's why they don't have prints on each tube.
Geniune IP Philips code for PCC189 / 7ES8 etched on every single tube together with production date and EI tube factory code.
All tubes I have listed for sale are really perfectly balanced with exact or almost exact triode sections due to big qty I have in stock.
Variable mu triode, perfect for use in tube audio compressors!
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Domain Names...Serves us!
Format: Paperback
This is the most complete and must-have DNS book i've ever seen before. Nor only prepares you to understand every basic and some advanced issues about DNS, it also shows a lot of "tricks" with the most powerfull and well know - famous DNS implementation!: BIND.
If you are a beginner in the DNS world, this is a good step towards become an expert, if you're already an expert this guide will surely show you a lot of useful information in your daily DNS administration problems.
Definitely, this was one of my best investments on my way to become a site administrator.
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Reviewed in the United States on June 11, 2011
★★★★★ 5
Thicker than I anticiapted
Format: Paperback
The encyclopedia of DNS books, meaning thicker than a phone book.
I like the fact that this book is thick but so easy to read and follow along with. If you know nothing about DNS, this book makes it easy to learn about DNS. It starts with the history of DNS and then explains the hierarchy of the DNS tree. A must read if you want to improve your understanding of the internet and what happens under the hood for name resolution.
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Reviewed in the United States on February 7, 2014
★★★★★ 5
Best practical book on DNS and how it works
Format: Kindle
I was interested in finding out more about how DNS is deployed and operated in practice. The first few chapters in this book deliver very well in this regard. My motivation was to find out more about how a certain type of Internet attack -- the "open DNS resolver attack" -- works. Even though this book was written well before this attack became popular and well known -- and therefore the attack is not mentioned, let alone analyzed -- the book was still quite helpful to me.
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Reviewed in the United States on June 1, 2014
★★★★★ 5
DNS reference
Format: Paperback
The book arrived in perfect condition. This a reference of dns related knowledge.
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Reviewed in the United States on July 11, 2024
★★★★★ 5
One of the best books I've read on DNS and BIND
Format: Kindle
DNS is one of those concepts that is almost kept in mystery in the tech world. The knowledge seems to be passed by word of mouth, and there doesn't seem to be one good repository to go to as an information source. That is not to say that this book is all inclusive, no book can contain every piece of knowledge you need/desire, especially on such a complex topic. This book however does a phenomenal job of demystifying the subject and giving a good, practical understanding of how DNS and BIND work.
I would highly recommend this book to anyone, whether it be the new network/sys admin who has just had complex networking needs dropped on his lap, or even the seasoned network admin who needs a good convenient reference on occasion.
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Reviewed in the United States on May 11, 2013