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Supratek Owners Thread

Greetings All - 
It appears that the 26-million-plus view, multi-decade "Preamp Deal of the Century" Supratek thread has been removed. I'm not sure why, but suppose there must be a reasonable explanation.
In any case, on that thread I recently asked whether there might be interest in a "Supratek owners thread" and received some interest. 
The purpose of this thread is for Supratek owners to share the details of their system, ask questions, share information about any tube-rolling they have done, and so forth.
I'll kick us off here with a few details about my system -
ancient Linn LP12 with Ittok arm, Dynavector 17D3 cartridge into Cortese LCR phono stage
Power amp is a fully serviced Innersound Electrostatic amplifier
Quad ESL63 speakers (not USA monitors) or JBL 4430 studio monitors
Digital sources are immature and evolving - ancient Fostex CR300 cd player/burner
DacMagic 100 DAC
Nordost Blue Heaven 75ohm interconnect
Due to the fairly long lengths of speaker wire required in the new listening room, speaker wire is Belden 12 gauge wire designed for low-voltage outdoor lighting systems. 
Next steps - dedicated circuit, new power cords, new interconnects, new wires.
128x128markusthenaimnut
gryphongryph
384 posts
 

Thanks for input, I ordered a pair of Genalex - Gold Lion PX-300B

Looking forward to try them out.

firstgrowth
87 posts
 

Ok.  Idiot alert.  I received my pre amp yesterday.  It's a spectacular looking piece.  I followed Mick's instructions and I'm getting zero sound.  Has anyone run into an issue and found a solution?  I have the switches set for 300b and SE input.  Any insight would be greatly appreciated.

jslateiv
64 posts
 

Make sure the center/rear toggle in front of the gain knob is positioned towards the front of the pre (or make sure the knob is fully clockwise),..  Other posibility is that the V switch for the DHT is incorrect.   If you are in fact using a 300B (NOT 45),  try the switch in the other position,..  no harm as the 45 only gets 2.5v (not 5v)..    this can also be (very) carefully measured with a dmm by lifting on the DHT out of the socket just enough to probe both of the 'large' pins.  DMM set to DCV.   Should see 5v. make sure the probes DO NOT touch other pins or chassis.    Also make sure your input selector is correct.  if using the first rca /input   selector should be in the 2nd position.

firstgrowth
87 posts
 

@jslateiv 

 

Enormously helpful.  I flipped the gain switch the opposite way as well as the mute. There's some sound but I'm not there yet.  At least I know the cabling is correct.  

The sound is faint and thin.  I tried the 45/300b switches and no change.  I don't have my multimeter at this house so I'm flying a little blind.  Is there a chance I installed the output tubes incorrectly?  I can shut it down and reseat them.

jslateiv
64 posts
 

PM sent..

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