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Single Ended Triodes (SETs), the ultimate tube lovers dream.

The Coincident Frankenstein IIs arrived safely...

...and well-packed they were. They're warming now, but of course I took some pics first.
 photo 2014Feb05_FrankRchfront1200w_zps9262f49a.jpg

Input tube is a dual-triode Raytheon 6EM7, rectifier is a 5U4G RCA, and output is a Shuguang-manufactured, black-enveloped, Treasure 300B-Z. The steel blocks have Herbie's Audio Labs grungebuster discs on their bottoms, and they're busy damping the moderately ringing chassis. The bottom plate and transformer covers don't ring as much as the WAVAC items did, but they and the rest of the chassis will soon be damped with SoundCoat The Thicker.

The insides.
 photo 2014Feb05_Frankbottomopenfront_1200w_zps94913b42.jpg

 photo 2014Feb05_Frankbottomopenside2_1200w_zps10a010c7.jpg

 photo 2014Feb05_Frankbottomopenside1_1200w_zps9a612947.jpg

Detail of input/driver tube socket.
 photo 2014Feb05_Frankbottomgainstagedetail_1200w_zps265e477b.jpg

 photo 2014Feb05_Frankbottomgainstagedetail2_1200h_zps7ffabd13.jpg

Looks to me, and I know only enough about this stuff as to be dangerous, as if both triode sections' cathodes are bypassed.

Power-supply caps (and with a tube rectifier, these would be the 2nd-stage caps, yes?) are Solen 47/630s times 4. Maybe I'll meet the 1st-stage caps when I look under the transformer cover, or maybe one of the 9 small-to-medium 'lytics in the bottom is the 1st-stage cap.

The amps are making music, breaking in, driving the 87dB-sensitive Vandersteen 5As, and I'm using the V-steen inline hi-pass filters.

More later. :-)


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Topic - The Coincident Frankenstein IIs arrived safely... - jeffreybehr 16:33:50 02/5/14 (42)

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