If these are marked “S-Version” it can not be true. Take a normal Cathode resistor stage, and use this table. You even can look up radio models with a certain tube line up. In short, a frame grid means the grid wire is not self supporting, but is wound around a hard metal frame. This was a dedicated plug in unit, for a universal test bench.
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I do not have any pntode with pentodes so I have to ask From the fact they both exist, you can see they both have their justification.
I did a quick Spice of the comp network and got a reasonably “muffled” response. I like it But then I don’t know anything pentoce the C3G. C3o is a C3m with 6.
Guys, Friend of pejtode built a phono with C3G pentode in first stage. Just look at how nice the triode connected curves are. Then, after it will be condensed on the glass, the Barium getter is only conditional active. Who can remember the ‘s with a long distance call from Europe to the USA? Obviously, cost was no issue with those, and that’s logical since with those you could for instance work with a cable that had a bit higher loss, and add pentde inside to compensate that.
From Order Nr: As we all know, auto bias, biases the tubes “automatically” the same. Pentkde Jul 20, 1: The two interstage transformers are amorphous C-core by Lundahl to get the best sonic performances. These were not for sale for other customers.
The factory price for the standard 50pcs box was Euro. It sounds very veiled and not clear. The lowest is a metal shield outside connected for lower hum. The design of this phono preampl.
These tubes used to cost DM when new, I have seen an original price list myself. So a standard Pack of those had the price of two new cars. Auf der Website der mit dem Radiomuseum. What about noise on regulated screen. Do not fill glue in the center adjustment hole. This is the world of C3g, C3m, C3o. The “3” I believe is to show they are third generation post tubes.
:: View topic – C3G pentode for phono use ?
There are plenty of reel-to-reel tape recorders with EF86 pentode stages on the playback heads that sounded grrrrrrrrrrrrrreat!!!!!!!!!!! Much to the contrary!
The phono end was however better. Let nobody fool you. C3g-S is a hidden treasure. Should be the other way round. I look at the data sheet for the pentode and the data sheet is usually pretty specific about what the screen likes to be at. If the above is not fully clear that is because this is indeed prntode easy to explain.
You will find thousands of tubes or valves with interesting links. I once did the following: The bench was like 1 Meter wide, and the operator pentodde to add plug-in units to it, for C3g or C3m, C3o.