jslateiv

Responses from jslateiv

Supratek Owners Thread
@gryphongryph   Yes,  very high gain pre,  coupled with unshielded/open motor next to circuit = motor noise coupling to audio circuit..  You would still hear some noise even with a lower gain circuit. less though.  
Supratek Owners Thread
@nymarty   The motor in those is noisy from an emi standpoint and generates some hash in the circuit when it is engage.  Once the vol. is set though,  the motor is not doing anything so not generating the noise,..  you could probably find a differ... 
Supratek Owners Thread
@nymarty   gotcha,..  then in that case, if there is no noise when turning the vol. knob manually,..  I think what you are hearing is the motor/circuit noise creeping into the audio circuit when the motor is engaged,..   
Supratek Owners Thread
@nymarty  first guess would be a pot getting dirty/bad rub on the wiper for whatever reason.  For these pots, only solution is replacement as they are sealed.   
Supratek Owners Thread
@reimarc ,  I would guess 1 of 4 things. 1. the remote does not work 2. the 'photocell' cable is not connected to the VC board 3. the VC motor is not getting power 4. The Vol. knob shifted in transit and is rubbing/binding against the side of ... 
Preamp Deal of the Century
 Congrats on the purchase @nymarty.   That pre will serve you well and last close to forever.  Unfortunately only rca or xlr can be used at one time.   A second pair of rca’s could be wired in and both sets of rca’s could be used if needed.     Th... 
Supratek Owners Thread
Will be around 75K input.  
Supratek Owners Thread
The V. reg circuit is the same for all Supra's so yes,  the 6106 will work.   The circuit uses the tube to makes sure the voltage proceeding it is always steady, ie. the same set voltage.   The tubes are self-regulating for bias current so no need... 
Supratek Owners Thread
@tholt ,.. The gain reduction is mainly for matching the pre to very sensitive amps,..(ie, solidstate) where there would not be much play in the VC.  It is best left un-engaged if it is not needed but is pretty transparent when in use.    With mos... 
Supratek Owners Thread
As @isaacc7 mentioned,  Mick stopped making them back when Covid hit due to an extremely high backlog of Pre's need to be made.  I believe orders have since slowed down a little for him and I'd be willing to bet he would make or certainly consider... 
Supratek Owners Thread
I have found that a good 50hrs seems to open up the OPT's,..  I always hear a difference in the first hour as the unit gets hot and temps stabilize.   Tubes can be hit or miss with their own break in,..   some don't require much time and some do,.... 
Supratek Owners Thread
@tksteingraber   You will hear a little crackling when the remote is used due to the motor interacting with the high gain circuit.  You should only hear it while the motor is turning the vol up or down (remote) though.  Should stop once you take y... 
Supratek Owners Thread
They do take a little time to settle in when new.   You'll notice a nice difference within a couple days (20-30hrs),.  Those Output transformers need a little juice running through them to open up.. The supra's also like to be at stable operating ... 
Supratek Owners Thread
Honestly @tksteingraber  I wouldn't worry about asking Mick to send replacement sn7's.   Your better off finding some good ole NOS USA (or new/current) ones from a reputable local (US) source and going that route.  Things take such a beating these... 
Supratek Owners Thread
depending upon the 300b tubes you have installed maybe,  maybe not..   you need to measure.  the dimensions of the GF tube are given at the site.