[ScottRT]

... Now I'm running 322v at the 330v test points. Is this OK to do, or does R221 need to be in the circuit for filtering ripple or the such?

By the way, I put my primary tranny connectors back to specified pin-out, and the tranny runs cooler again, and the sound is just 'right'. With the black/black-red swapped, B+ voltages were higher, but I had to keep looking to see if I had hit the mono switch because the sounstage just wasn't there. Sounded like I was using a $10 turntable.

Thanks again........
Scott T.

[hagtech]

Probably better to keep R221 in place, then adjust B+ by trying out various rectifiers.  That 330V number is nothing magic, just a typical operating point.  No need to be exact.  Will run fine at +/-30V.  Sound will change, though.  That's part of why we roll tubes - you keep getting different balance points.

jh

[tubesforever]

Hey Scott,

Once I found my favorite rectifier tubes like the Bendix 6106 or the Mullard 5AR4 or CV-30 I noticed the B+ voltage was within +/- 5 volts.  So I simply soldered in the appropriate resistor values to get the 330 test point to read at 328. 

You and I have discussed this, but I thought it would be great to post the following for other readers. 

I have found another voltage that is critical to the sound quality of my Clarinet and Cornet 2.  It might be easy to overlook and I discovered this by reading a post here at the Hagerman forum.  This place is absolutely the best!

I found it is critical to hit at least 6.0 volts on the H+ supply.  I have my Clarinet at 6.1 and my Cornet at 6.0.  I am going to try to get the Cornet 2  up to 6.175 volts.  The bass improves as the heater voltage goes up.  However 6.3 sounded bloated on the Clarinet. 

If anyone wants to tune their bass response, this heater voltage should be the first step and then tube rolling should fine tune the sound.