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Page 1. Page 2. Page 3. THE 6SL7GT COMBINES TWO INDEPENDENT HIGH-MU TRIODES IN ONE ENVELOPE. IT. IS DESIGNED PRIMARILY FOR PHASE INVERTER SERVICE. GE 6SL7 Datasheet. If the page is blank click here GE 6SL7 Datasheet. Interesting Books on Amazon. Latest; Popular; Comments; Tags. Main-Decoder.

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Appearance, stamps and test data perfect and fresh like new.

the new reference B amp

You are right to say this is a fine sounding tube. Posted by VinylSavor at Everything is good now. This datxsheet from the Sylvania gold series.

Boxes nice and clean. Another one with black base but shorter glass:. Or at least try to determine which is the least microphonic if I ever build a phono stage around them. Looks like the above pictured tubes, but with etched gold printing.

GE 6SL7 Datasheet

From each lot, they have to take a sample quantity. Curves are almost identical to 6SL7, and they will replace any 6SL7. Just thought I’d add that the 7F7 is a loctal variant of the 6SL7.


Very small glass chip inside 1x2mm. I estimate these are from the time at the WW2. Those Loctal equivalents of popular Octal tubes are still mostly overlooked. This month I am presenting a high mu dual triode. Original box, with small control paper inside, code number on paper is the same as on the tube A dry, maintained stockroom, has some yearly costs, and people clean it up and look around for free space.


So who believes this, thinks these tubes were stored for 60 years in a clean and dry stock room and all 6zl7 that time, nobody needed them, and there was always enough room there, and nobody kicked them out. This is a tube which needs no selection for balancing. Amplitrex report tube 47 – Amplitrex report tube Knowing this, there is something weird about somebody maintaining a dry storage for 60 years, storing tubes not a 6sk7 wanted to buy. Original mA filament current tube. We have still many of those, but people apparently LOVE to wait until they get less, and then jump on the boat at doubled prices.


Just take two, and it’s a pair! Was not sold for commercial purposes.

What means “must have been Thank you for your awesome blog. Here is a quote from the datasheet:.

ECC35 has another operating point, but it will fit in normal 6SL7 circuits, since this is a high gain tube and auto bias is functioning very nice with high gain tubes. NOS Siemens appeared suddenly out of nowhere, in massive quantities, in crispy new boxes, that look like made yesterday.

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Stress those tubes much above maximum limits These lots had to survive decades as forgotten junk. I put the certificate, and original small control slip inside the box. So after all to the junk yard, or perhaps he stores them at a place which cost almost nothing. Not so with For half a century, they were regarded crap.