Responses from tkhill

Sophia Electric is not honest
Does anyone out there have a spec. sheet for this amplifier (Sophia EL 34 A/B)? Sophia now denies having any documentation. These are not my favorite people!  
Is My Tube Amp Unfixable? Help Needed
Replace the output tube with a known good & then work your way back. It's also possible the tube sockets are wonky. Clean them with a drop of deoxit sprayed on a periodontal brush. Also clean the pins. Good luck.  
Replacement Tubes
Tube Depot https://www.tubedepot.com/  
Why is solid state more popular when tubes are better?
Is it really a contest? I thought it was a hobby. Upon returning from abroad with a modestly priced Chifi tube amp, I sold all my solid-state gear and upgraded (?) to tubes because I like the sound more.  
Should I steer clear of class D amps
I've no familiarity with current NAD products. Those I owned were excellent values. "Class D" always sounded a bit like snake oil to me. The data seems to show it. As to tubes sucking up power, I recently installed a vintage Sophia EL 34-based am... 
advice for headphones?
My AKG K240DFs have served me well in every application for thirty years. Made in Austria, the build quality is excellent. You may need an amplifier to use them on your laptop or other low-power devices, as they are 600-ohm headsets.    
Can’t buy output tubes anywhere except from manufacturers at high prices.
You can count on viva tubes https://www.tubedepot.com/ brent jesse  as vendors The JJ El34s & 6CA7s are my go to.    
Can’t buy output tubes anywhere except from manufacturers at high prices.
There are plenty of EL34/6CA7s out there from reliable sources.    
What was the craziest location that you made an audio purchase from?
From eBay in Chengdu, Sichuan, China. It looked and sounded suspiciously like the original Sophia Baby.  
Taylor Swift Concert Prices
There are great pickers & singers in almost every nook and cranny in the U.S. Spent your time and money looking for them. And the rest on a good playback system. No crowded bathrooms. Parking is free and the snacks are at grocery store prices.  
6DJ8 vs. 6922?
No one has ever had a discussion this interesting a discussion about MOSFETS.    
Do You Clean Your Ears?
The only thing you should stick in your ears is your elbow. A good ENT specialist, especially one who loves music as much as you do, is a blessing. I spend more time talking about music with my guy here in D.C. than his receptionist would like.    
Whats playing on your system today?
Junior Wells: Hoodoo Man Blues https://www.amazon.com/Hoodoo-Blues-Expanded-Junior-Chicago/dp/B0056NYERG/ref=asc_df_B0056NYERG/?tag=hyprod-20&linkCode=df0&hvadid=266176361710&hvpos=&hvnetw=g&hvrand=63922237... 
what to do with a stereo that needs repair
Where are you? Pro-Tech Services here in Washington, D.C. does great work, They know how to ship these beasts & can advise you. I've been nothing but pleased all three times I've visited (twice with the same amp - but I dropped it. They didn'... 
What's your experience with snooty HiFi salesmen?
The same as with snooty wine/realestate/spirits/ anything else salesmen. Mutter f+++k off under my nose and go somewhere else. At 74 I'm too old to put up with anyone's nonsense.