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In Reply to: RE: RFT 6V6 posted by h00hbt on June 26, 2013 at 12:01:31
Nice! Nice! Nice!!!
Where did you get those?
I've noticed that the 6V6 type has huge amounts of variations, even within manu's, of plate structures. Very cool! Makes for interesting rolling!
jstrm
Follow Ups:
Sure look like Bendix's! Great find!
Jim
I used to be perfect, now I'm just conceded!
looks like a fake to me. RFT used yellow logos as i know and 6V6 tubes were not common at all in the european hemisphere...
N.
The times, they are changing...
These tubes are not fake. They all come in original boxes and have the same date code. These tubes are absolute NOS and have never been used. I have several tubes from RFT, 6SN7, 6SL7. some have the yellow and some white silk screen printing, same plate construction. @ Nunki; get your fact´s strait before yelling fake.
RTF used white silkscreen printing on tubes produced 1951-1953. From the year 1954 they used yellow silkscreen printing. Also, The real tell tail that these are in fact real RFT tubes is the ceramic mica.RFT Mühlhausen even made tubes for Telefunken, Ultron, ITT, Calvert, National, Valvo, AEG and several other brands.
“If you don't like what you're doing, you can always pick up your needle and move to another groove.” Timothy Leary
Edits: 06/28/13 06/28/13
Quite rare. Here is the data sheet:
http://www.hifitubes.nl/weblog/wp-content/rft-6v6.pdf
Yes CV4109, that´s RFT Mühlhausen production but with cyrillic, Russian, tube type printed on the glass. Note that this tube doesn´t have the ceramic mica. I guess these where produced by RFT for the east block CCCP.
Nice find, thanks!
“If you don't like what you're doing, you can always pick up your needle and move to another groove.” Timothy Leary
Oh well....
Jim
I used to be perfect, now I'm just conceited!
Yes Medium Jim, the Bendix have a great reputation of being a good tube. Another 6V6 tube, though extremely rare, is the 5S2D equivalent from Standard, made in Sweden.
“If you don't like what you're doing, you can always pick up your needle and move to another groove.” Timothy Leary
Very nice indeed! I bet there are a few other under the radar 6V6 variants out there, either for military or industrial purposes. Btw, the 6V6 is my favorite small pentode. One of my favorites is the 1950's Sylvania CHY with Micanol bases, black plates, and silver getter flashings.
Jim
I used to be perfect, now I'm just conceited!
You mean these?
“If you don't like what you're doing, you can always pick up your needle and move to another groove.” Timothy Leary
Jim
I used to be perfect, now I'm just conceited!
Jim
I used to be perfect, now I'm just conceited!
Aha, beautiful!! What kind of gear do you use them in? What´s your impression sound wise?
“If you don't like what you're doing, you can always pick up your needle and move to another groove.” Timothy Leary
Thanks, mostly in vintage guitar amps, such as tweed narrow panel deluxes and 1950's Gibson's. The Sylvania's have a little more headroom, but still have the smooth and creamy overdrive. They're not big in bass, but the mid's and shimmering high's make them a total winner. Everybody raves about smoked glass RCA's, while a nice tube, not as sweet sounding. However, the RCA 6V6G coke bottle is damn nice for guitar amps.
Some day I would like to build a nice 6V6 stereo amp and pull out my Dynaco Speakers for it!
Jim
I used to be perfect, now I'm just conceited!
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