Preamp Deal of the Century

Hi Houstonreef. OK,things are a little more clear now. As I mentioned in my last post the 6bg6 is an electrical equivalent to a 6L6 however it requires a top hat connection to the contact on top of the tube to power it up. Could very well be a factory version from Supratek for all I know. I would suggest you email Supratek and ask Mick if he made it that way or perhaps you could ask the previous owner if he rewired the socket to accomodate the 6BG6 tube. To be candid here: Unless you are into tube rolling of the regulator tubes it nothing to be concerned with anyway. RE: Power up procedure [important]. When the JC-1 is in "standby mode" there is no voltage or power at it's output whereby you can leave it powered up 24/7 if you wish.It is very important to be sure the preamp is powered up and running PRIOR to switching the amplifier from standby and into PLAY MODE . Powering up the preamp when the amplifier is in play mode can potentially damage your speakers, amplifier or both. When shutting your system down.....It is imperative to turn off the amplifier first before the preamp. In your case, switch the amplifier out of play mode and back to standby mode before powering down the preamp. You can leave the JC-1 in standby mode 24/7 if you wish.

Hi Frankiealverti. Hmmmmmm.... If the symptom is common to both rectifiers I would think the problem is elsewhere in the preamp. The phono stage tubes in the Syrah are battery biased,perhaps the batteries need to be replaced and hopefully they may very well be the cause.

Hi ecclectique,
thanks. I just saw one battery inside. I know there are quite a few different Syrahs, but, do you think that is normal?
Best,
frankiealverti

Hi Frank. Yup, change it out and let us know the result. Cheers david

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