Bias adjustment

rodman999994,300 posts04-27-2020 5:52am@oldhvymec -   Try this, for the HEXFRED pics:   https://systems.audiogon.com/systems/8604      Thus far, I haven't been able to bring them up, any other way.    OP: sorry, for the highjacking!

Maybe OP need to get hold of rodman99999 for future repairs, sure fixed me up..

Thanks rodman99999, nice job. I'm using turret boards, only because I needed to order a few for a cable build project.. I don't have those little vents either.. 

As long as OP got his amps up and going, without smokin' valves..
Man oh man... 

OP make sure you match those valves, in pairs, very close on one side then the other, ok it make a difference..

I read this thread a few times.. Cary, really did mess this guy around.. After what the OP and I went through. Cary not having a DAMN schematic. I wouldn't buy new from Cary.

I should post before and after pics, of my rats nest clean up of my Cary..
Really sloppy work if this is factory...Man oh Man, Look at Decware, Carver. Heck the old Macs are a LOT cleaner...HK Citation II, art...

Hay OP, my Cary sounds good, very pleased, with the sonics, now.

Regards

Amazon

   Hi here’s some random babbling . I use a meter with a digital readout . Most of the tube amps I’ve biased require that you short the input , I use a rca with a jumper soldered down the center to ground , and then just soldered to the positive shoulder . In the last year I’ve had a Winged “ C “ 6550 flash over cracking the glass, with no damage to the amp  . Then a few months later , a New Gold Lion KT-66 arched and blew out the capacitors and a 5 watt resistor in the power circuit . They exploded with enough force that it broke the wiring terminal that was holding them . After two hours with tweezers and a Q-Tip removing paper, foil and oil,  I packed the amp and sent it back to Dennis Had . He fixed it for free , after my warranty had expired and didn’t want to charge me . He stated that the me the tube was the cuprite , as I marked the power tubes and sent them along . He also stated if my amp wasn’t repairable , he’d build me a new one . But he no longer has Cary and works from his home shop . He’s a class act and we always talk about God . I’m sorry you’re experience was less rewarding . But having grown up with Dynaco gear , I’ve ruined my share of stuff . And have experienced many variables I didn’t expect . But I’ve always learned from others by asking . Happy listening, Mike . 

Oh and you never power one up without a load ! And Raven has great stuff !