or a simple mono SET using space charge tubes. no shocky there ;)

Just don't let your homeowners insurance company see theose pics...:scratch2:

That is too cool.. but I have to ask, how hot are those tubes? The smaller tubes I have in my gear get WAY too hot for me to even consider putting them on a tree... I'v had one place of mine burn, I plan to never have another fire if I can help it...

Another thought too.. have you coverd up the pins? One short of the pins to the wire in the branches and POOF... It might only be 10 volts, but if they sit there long enough, seems like a short would start melting things.. Even a 9 volt battery can start a fire..

I also thought of them getting hot, I figure he's smart enough not to leave it unattended though. I can't imagine him leaving them on overnight or anything. I would figure he would only have them on while he's in the shop working or hanging out. If something happens I'm sure Doug would notice right away.

I'm sure of that too.. but have you ever seen a tree light up.. even if you are sitting there, you have almost no time before it's an inferno. I know fake trees have fire retardant built in, but believe me, after youv'e had a fire in your home, you don't trust much... Why take an unneeded chance?

Running it at low voltage on a variac like he is, I wouldn't think it would be too bad. I had thought about doing something like this but the idea of all those connections kept me away. Someone with way too much time on their hands could rig up sockets to C4 bulb bases, or even a standard Edison base. (I just picked up a small set of Christmas lights that use them) With the big base you would maybe have room enough for big base tubes.

Just the filaments won't get too hot. Even with HV on the plates, small signal tubes (e.g., 12AX7) really only get warm in use. Tubes with a lot of plate dissipation get hot (as in, you could cook on 'em hot).

That is so cool!

I've hung 6V6's from my tree but your idea is simple ingenious!

May just steal the idea...!

:thmbsp: Love it!
--Dave

Yall are challenging me to build an amplifier into my tree now. lol

I love it!!! Very cool!
Dan

LOL you are a SICK individual :-P

Now I gotta make one out of some tubes...:scratch2:

Awesome
 

I put a tube on my tree, but did not think to wire it. You are ingenious!
You can see mine in the tube audio forum, under Merry Christmas tube heads.
John

That's awesome!