2359glenn

Xcalibur255 · May 12, 2015 at 12:42 AM

Hey Glenn,

For an amp that uses a 6SN7 in its output stage, could a 6B4G theoretically be substituted? Or is going from twin to single triode there something that cannot be compensated for with just an adapter?

Just curious.

2359glenn · May 12, 2015 at 7:13 PM

xcalibur255 said:
Hey Glenn,

For an amp that uses a 6SN7 in its output stage, could a 6B4G theoretically be substituted? Or is going from twin to single triode there something that cannot be compensated for with just an adapter?

Just curious.

Hi Tyrell
That really can't be done first only one triode not two and they are direct heated so each one will
need it's own DC power supply for the filament.
When I get time I want to build a amp that uses just two C3m 1.5 watts. Have all the parts want to
build it and send it to you to play with.
Just not much time work is killing me as of late Just got home 7:00pm yesterday 9:00pm,

Glenn

Xcalibur255 · May 12, 2015 at 7:48 PM

2359glenn said:
Hi Tyrell
That really can't be done first only one triode not two and they are direct heated so each one will
need it's own DC power supply for the filament.
When I get time I want to build a amp that uses just two C3m 1.5 watts. Have all the parts want to
build it and send it to you to play with.
Just not much time work is killing me as of late Just got home 7:00pm yesterday 9:00pm,

Glenn

I think this is a really good idea. In pentode mode the tube has enough gain all by itself, and single stage means no caps or anything else in the signal path. With really good transformers I bet it will sound amazing.

Sorry to hear about the late hours. Feels like everybody is working too hard lately.

wotts · May 12, 2015 at 9:53 PM

xcalibur255 said:
I think this is a really good idea. In pentode mode the tube has enough gain all by itself, and single stage means no caps or anything else in the signal path. With really good transformers I bet it will sound amazing.

Sorry to hear about the late hours. Feels like everybody is working too hard lately.

+1

Hope y'all are doing well.

Silent One · May 15, 2015 at 11:58 AM

Two thoughts: With me not working and all my gear in storage, maybe Glenn could send me something experimental to play with; evaluate.

Shaffer · May 16, 2015 at 2:43 AM

Stopped by to check out some of Glenn's amps and gained eight pounds.

Silent One · May 17, 2015 at 3:45 AM

A couple of nights ago inside the storage unit, I reached for a single box stacked on the right, and two tall stacks of boxes to my left came crashing down. Out of view is many more tubes that shattered inside the hallway.

Luckily, my most valued tubes survived hitting the floor due to popcorn and bubble wrap....whew!

lukeap69 · May 17, 2015 at 3:46 AM

Heart attack!

Khragon · May 17, 2015 at 4:09 AM

watch out for those mercury vapor tubes.

whirlwind · May 17, 2015 at 5:23 AM

.....very sorry about that.

Thank goodness for the popcorn & bubble wrap.

Ultrainferno · May 17, 2015 at 6:21 AM

Horror

GrindingThud · May 17, 2015 at 7:39 AM

Eek, so sorry for your loss... :frowning2:

gibosi · May 17, 2015 at 8:01 AM

Terrible!

But out of the wreckage, maybe you can create a masterpiece or two?

http://www.ebay.com/itm/Tube-Man-Hand-Made-Art-Lot-of-1-steampunk-art-2a3-45-12ax7-6l6-7591-6sn7-el84-/191581739523?

musicman59 · May 17, 2015 at 10:32 AM

silent one said:
A couple of nights ago inside the storage unit, I reached for a single box stacked on the right, and two tall stacks of boxes to my left came crashing down. Out of view is many more tubes that shattered inside the hallway.

Luckily, my most valued tubes survived hitting the floor due to popcorn and bubble wrap....whew!

This is a sad scene!!