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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More refinements More refinements However, these tubes are always somewhere, and find the path to their end user. I think most of the tkbe of how to make C3-tubes are gone with the wind, but tjbe least we can still buy those miracles of tube art from new old stock. Every product 3cg be tested before we send out. What is the reason for auto bias testing?

Gruss von Hans M. Such that you deform the inner structure, but not damage the tube totally. Put two components glue on the sides. High Amplification, low noise, long life, no distortion, small size, low filament power.

So far, I was not able to find the factory specifications for this, but one day, I hope “coincidence” is going to help us out here.


I have seen the original test tools for C3g and C3g-S selection myself, in Ulm. However I can find no information about the “S”, other than what he told me, and other than what is on the tubes and tuhe boxes. There is “S” Version of the C3g that is said to me to be selected for higher minimum transconductance. Like during great heat such as with KT88 tubes.

Old style engraved logo. Individual series number on each tube Let me bring to your attention, the C3g at it’s introduction in was the fist Frame grid tube, and it was not available commercially.

Custom Bundle see all. Had the opportunity today to trace some great Siemens pentodes in both pentode and triode modes:. All these are brilliant candidates.

The tube tester W20 Card from above It stretched over a few years. If this is unclear to you, imagine the following, on a loud market place in the open, somebody shouts a message to you from a distance.

This means, you must use very tight limits for an auto bias test, much more critical as with a fixed bias test. C3g Siemens Order Nr: C3g-S is a hidden treasure. So you started to speak very loud into the phone, but that didn’t help much, and I remember people in the offices would try to look important, by shouting into the phone with long distance calls.


I may want to try some other combinations such as 4P1L pentode in filament biasor why not some other drivers as 6e5pC3g and D3a.

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Verzeichnis der Zwischensockel, Abt. Look at the two round plates above the pins. Much to the contrary! I’ll see if I can note any sonic differences.


You can take off the metal housing, and inside is a very nice glass tube! This will easily fool a fixed bias test, but it can never fool an auto bias test.

So I can say I hube them from the first owner. Dies deckt sich mit der aus der Liste von gemachten Angabe “Flachboden”. They start to absorb gasses, whenever they have a sufficient temperature, and all you need to do is, mount it at a warm place.


This is the world of C3g, C3m, C3o. I mean the real ones, not the fakes. Loctal-8, B8G Sylvania, This is New Ceramic Tube Sockets. In tybe few words, this explains why these tubes are so great for HiFi purposes.

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