6BM8 tubes... what to use them for!

[Tubenit]

Little Wing

Here is the info for Little Wing

"Little Wing" Mini-Bassman w/ 6BM8 tubes

And here is a 56T reverb also built with 6BM8 tubes which I like even better.

http://www.el34world.com/Forum/index.php?topic=6176.0

You'll need ExpressSCH to open the files. It's a free download.

with respect, Tubenit

[rathmann]

Here is the info for Little Wing


You'll need ExpressSCH to open the files. It's a free download.

with respect, Tubenit

Any chance someone could spit this out as a .pdf? There's no Unix/Linux version of ExpressSCH for us mac users...

Conversely anyone know if EAGLE, Xcircuit, or Gschem (gEDA) will import the ExpressSCH file?

[tubeswell]

There's no Unix/Linux version of ExpressSCH for us mac users...

JSchem

will open these types of files

[sean k]

Alex SF, the resistors you indicate are the timing resistors and the depth of the tremolo is set by the voltage divider 220k/220k. Replace the top 220k, on the grid, with a 120k resistor and a 100k pot , and pot the pot between the 120k and the 220k to ground and feed the .1 to the wiper. I think that'll do the job for you.

[timrichter9]

I have a Univox U-45B that uses them. Not a bad sounding amp.
http://www.univox.org/pics/schematics/u45b.jpg for ideas
Good luck!

[kleuck]

http://farm9.staticflickr.com/8033/8...4813e64b_b.jpg

[Gingertube]

A couple of other uses for 6BM8.
For a Guitar Amp:
- use 4 of them 2 triodes for the pre, 2 triodes for gain/concertina OR diff amp splitter, parallel push pull pentodes for 20W out.
OR go small - the Aussie "Lamington" The "Mini Lamington" amp
For BIG (Bass Amp) use the triodes for diff splitter, direct couple the pentodes as cathode followers to the two outputs and use them to drive 3 or 4 off 6L6, EL34, KT88 etc. per side in parallel push pull for 150 to 200 watts. There are a number of HiFI Amp designs out there using them in this and similar fashion including this one driving huge transmitter triodes for more like 300 Watts The BEAST: 100W to 300W of Triode POWER!!!!

Cheers,
Ian