Results 1 – 36 of 36 Free Shipping on many items across the worlds largest range of C3g Tube. Find the perfect Christmas gift ideas with eBay. Buy C3G vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. Built specifically for the German post, these are special quality – 10, hour pentodes for use in AF and RF circuits. This really is the ULTIMATE preamp tube.

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As best I can tell, all these tubes with shiny black cans appear to have been manufactured in the same factory in the ‘s. You could repeat the message, and shout it to the next person. I would guess that these C3ms with embossed logos on top might be older versions Read here about frame grid tubes.

Siemens C3g Vintage Tube & Tube Socket

These were low noise audio tubes, made by Valvo, Siemens and Telefunken, exclusively for the German post. You can not see this wire with the bare eye. All Auction Buy It Now. Do you already have an account? C3g can easily provide a great performance as a driver with a gyrator load. This noncommercial construction was used already in DHT post tubes from the ‘s.

C3g Siemens Order Nr: Looking at the datasheet, we could get out 4. However, here is another one that looks like the Lorentz? This limits the length of a telephone line, and simply amplifying the low signal that comes out, would not help since you can’t get rid of the noise.


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Hot this week in C3g Tube. As we all know, auto bias, biases the tubes “automatically” the same. This was a dedicated plug in unit, for a universal test bench.

Apr 1, at 3: Anyway this is not what good signal transmission is about, but it fube the limits of what was possible with ocean cables. Just entertaining the possibility that the difference might be the vintage instead of the factory Matched pair with high Ia. Skip to main content. Just look at how nice the triode connected curves are. And here is another one which appears to be dated Look at the two round plates above the pins. Yes, my password is: Also do the next experiment if you have the equipment: This is New Ceramic Tube Sockets.

They start to absorb gasses, whenever they have a sufficient temperature, and all you need to do is, mount it at a warm place. From Order Nr: The bench was like 1 Meter wide, and the operator had to add plug-in units to it, for C3g or C3m, C3o. Like this, they could use wire which is ttube exceptionally thin, as it was never possible before.

Little Dot Tube Amps: Vacuum Tube Rolling Guide

They must be like this, and nothing else. As if there is a gold colored, transparent layer, that you can see through.

Such a tube has a tolerance problem, it is simply not build well, or it was dropped, and the inner structure is deformed. Opened cg up and slipped with the screwdriver and cut my finger – once is enough!

I picked these up on the cheap Frame grids generally give better quality tubes, though it must be said that the quality of C3m is just as superb, and I make the statement here for C3g and C3m, that there is no better tube available of the same kind. Can anyone point me to the “best” procedure for cleanly removing the cans? Go od applications for these tubes are: Going further back to the ‘s, this had to be done with tube equipment.


You can glue the metal base cg3 the tube.

Used Siemens C3g Vacuum tubes for Sale |

Imagine the weight of such a cable on a ship, or the trouble with repeaters in salt water, with a meters column of water pressure on it, inaccessible for ever, somewhere between Honolulu and Paris, on the ocean bottom.

Collection of Karl – Heinz Bossan D. Skip to content Sunday morning and my brain already started with a lot of activity early today. However C3o is exceptionally rare as NOS tube.

Other class quality otherwise equal: It increases the maximum length of a cable if by putting in repeaters, by amplifying the signal before the signal-to-noise-ratio SNR gets really bad. Whereas the German post, who designed those tubes, never said so, and also never said this is the right way to test them. SN to However little tubes like C3g can not really use the getter any more after activation. We all know that what looks really good in paper not necessarily translates into a great sounding driver, but at least is the best start.

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