• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Efficient 10VDC 5A filament supply 211 845 814 813

Apparently, Mouser hasn't sold NTE for 5 years...

Most people I read are talking about how they fail as HOTs in CRT tv's, and the "cross reference" isn't accurate at all. I dunno. I've only ever bought one NTE part to replace s 2N3055... It functioned, but the 2N3055 isn't exactly known as being a high end part, either.

It was an NTE181 I think. 5 times the cost of a 2N3055, but it was available at the local crap store.

Personally, I though the comment about whale oil was funny 🙂
First off koda, ALL cross references have SOME mistaken entries.
I've seen that kind of thing even in ONSemi books.
Data entry is by PEOPLE, and all people are non-perfect humans.

I'm not privy as to all the distributors concerning NTE these days, but I do know plenty of long-running distributors that still carry the line of NTE.

As for the CRT tv failure claims, I suspect that those "repairmen" are not professionals, professional enough to diagnose WHY a HOT failure happened in the first place.
I know from experience that HOT's often failed due to the HV Flyback shorting, or it's secondary loads or CRT board shorting, or the driving circuitry for the HOT itself is at fault, and something those backyard mechanics don't have the ability to diagnose with their radio shack budget meters on their kitchen tables/workbench.
That's how rumors get started, and never seem to end.

I stick with my pervious statements.
 
NTE is a division of Solid State Inc. located in Bloomfield NJ. A little before NTE appeared on the market, Solid State published flyers from New Tone Electronics which offered lists of solid state components for sale. Somewhere I still have an old newspaper flyer of their's. I assume that's what NTE stands for. And a while before this, SS opened a surplus electronic store on the ground level of 48 Farrand St. in Bloomfield. I live less then ten miles from there and would travel frequently to purchase parts and equipment from them. The store was called The Electric Barn and was for many years a treasure trove of electronic surplus items. And you could buy semiconductors from Solid State upstairs through the store. They'd call on the phone and the wanted parts would be sent down shortly. Unfortunately the store closed quite a few years ago to my dismay. On several occasions I went upstairs to Solid State to purchase transistors rather then go through the store below. I can tell you that is was quite an operation they had going. Today, years later, NTE has an entire section of the building farther down the road at number 44 Farrand. I'll bet every semiconductor item is still hand tested on Tektronix curve tracers (and/or other equipment) before it's sealed in those green and white plastic bags. And I can also say that I have never had any trouble with any NTE replacement part. And I've used many over the years myself and at places I worked in the past.
 
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NTE is a division of Solid State Inc. located in Bloomfield NJ. A little before NTE appeared on the market, Solid State published flyers from New Tone Electronics which offered lists of solid state components for sale. Somewhere I still have an old newspaper flyer of their's.
A while back, NTE used to be ECG Semiconductors, which goes back decades.
A lot of repair shops depended on them.
I've got older original stock, still good, if not valuable, in boxes labeled Sylvania/ECG, with ties to Philips.
They also involved vacuum tubes - the Sylvania brand.

ECG.jpg