Yeah that’s fair and to be honest those little signal tubes should be lasting you 4 or 5 yeaes anyway, it’s the big power tubes that I have to change more regularly.
Totally Tubular: The Tube Thread
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Yeah that’s fair and to be honest those little signal tubes should be lasting you 4 or 5 yeaes anyway, it’s the big power tubes that I have to change more regularly.
So one foot from the Jolida broke off, I thought I was screwed as the amp is not in production anymore.
But I'm super impressed with Black Ice support, they got back to me in a day saying they still had replacements, I called their office, placed an order and got shipping notification in 24 hours.
But I'm super impressed with Black Ice support, they got back to me in a day saying they still had replacements, I called their office, placed an order and got shipping notification in 24 hours.
Slimwhit33
Well-Known Member
Well….. little problem.
Went to turn on the PL Evo 300 pre just now, and one of the rectifiers had a short internal lightning storm then smoked and the unit shut off before I could shut it off.
What are the chances it’s just a rectifier tube? I’m concerned about the smoke.
- Concerned in NY
Went to turn on the PL Evo 300 pre just now, and one of the rectifiers had a short internal lightning storm then smoked and the unit shut off before I could shut it off.
What are the chances it’s just a rectifier tube? I’m concerned about the smoke.
- Concerned in NY
kvetcha
Well-Known Member
I would assume it's just the rectifier and maybe the fuse.
Slimwhit33
Well-Known Member
Should have had an extra pair on hand, just ordered a pair and we’ll see. I’ll check the fuse as I assume that went.
I had a power tube go a bit dramatically like that and it took out the fuse on the adaptive autobias board as well, so I had to change that. I’m not sure how that works fuse wise with the preamp and the rectifiers though!
Slimwhit33
Well-Known Member
I am REALLY happy I grabbed the headphone setup now.
Slimwhit33
Well-Known Member
My local is a PL dealer so I might have him check it out if the tube/fuse changes don’t work. Will just need to navigate the fact that I didn’t buy this one from him. Sucks.
Jbraswell
Well-Known Member
Obligatory Tube Shot
STP "Where The River Goes" on the table
STP "Where The River Goes" on the table
Slimwhit33
Well-Known Member
Back in business… new tubes and fuse did the trick. Phew. 
Jbraswell
Well-Known Member
How do you like the Brimars?
Slimwhit33
Well-Known Member
They’re fantastic. I’ve had a lot of changes in the last 3-6 months, so I’ve hesitated to talk about any of them individually but the Brimars made a real difference in the performance of the preamp. Highs are sweet and extended without a hint of harshness. Between the natural tendency of the Harbeths to have a great midrange and the Brimars, mids/voices are beautiful. In addition, real low end control paired with fantastic soundstage separation/presentation make the Brimars worth every penny IMO. Overall, my system has never sounded better.
Jbraswell
Well-Known Member
Finally got the Raytheon 5751 windmill getter tubes in.
They are an impressive, full sound.
They really dress up the Project Tubebox sound.
Will be interesting to see how the Rogue Perseus phono stage compares with this sound.
Test Readings : gm (Micromhos) 1550 / 1450, 1450 / 1500, Min Good is 875
They are an impressive, full sound.
They really dress up the Project Tubebox sound.
Will be interesting to see how the Rogue Perseus phono stage compares with this sound.
Test Readings : gm (Micromhos) 1550 / 1450, 1450 / 1500, Min Good is 875
Pretty.
Jbraswell
Well-Known Member
Jbraswell
Well-Known Member
Anyone know the effects of popping a 12AX7 in a 12AU7 spot in a preamp?
I know the gain is higher but does it harm stuff?
I know the gain is higher but does it harm stuff?
kvetcha
Well-Known Member
afaik they’re interchangeable.
Just an update on the Manley Stingray II.
It dropped the right channel Tuesday night. The output tubes were all showing correct bias, so unless something catastrophic happened, it had to be a bad input or driver tube.
When I got the amp, it had older GE 12AT7 input tubes and 6414 driver tubes. I had a pair of nearly new TAD 12BH7 driver tubes- Manley is no longer using the 6414 and the 12BH7 is the substitute.
I put the TADs and the GEs in and the amp sounds amazing. No noise from the TADs like I had originally experienced. Looking closer at the GEs, they are JAN military spec from 1972-78.
The amp is working again and sounding better than ever.
It dropped the right channel Tuesday night. The output tubes were all showing correct bias, so unless something catastrophic happened, it had to be a bad input or driver tube.
When I got the amp, it had older GE 12AT7 input tubes and 6414 driver tubes. I had a pair of nearly new TAD 12BH7 driver tubes- Manley is no longer using the 6414 and the 12BH7 is the substitute.
I put the TADs and the GEs in and the amp sounds amazing. No noise from the TADs like I had originally experienced. Looking closer at the GEs, they are JAN military spec from 1972-78.
The amp is working again and sounding better than ever.
It ain’t high end if it doesn’t break down once in awhile.
Jbraswell
Well-Known Member
FYI- I picked up on this useful info.
