The Dude's Official Mini-Bassman Thread.

Josh · Post by **Josh** » Sun Mar 01, 2009 11:25 pm

After searching with little luck I'm going to have the mini bassman built for me by a few guys i know.
all i need is:
The measurements of the actual head.
and the measurements of a blackstar head or orange tiny terror.
I want to make it about 30 watts but the scematic is for 50 that i found. Halp.

Reece · Post by **Reece** » Sun Mar 01, 2009 11:35 pm

google tells me the ht-5 head is:
185(h) x 440(w) x 230(d) mm

Josh · Post by **Josh** » Sun Mar 01, 2009 11:36 pm

Thanks Zaphod!

Will · Post by **Will** » Sun Mar 01, 2009 11:45 pm

So wait - are you just building yr own amp and putting it in the mini-bassman chassis?

Josh · Post by **Josh** » Sun Mar 01, 2009 11:47 pm

Kind of like this:

and a matching cabinet.

Pens · Post by **Pens** » Mon Mar 02, 2009 12:00 am

Shouldn't it be possible to build a 25W Bassman with just a single 6L6?

Josh · Post by **Josh** » Mon Mar 02, 2009 12:04 am

Sure. (Im an amp n00b)
It's already showing I know nothing about these.

Will · Post by **Will** » Mon Mar 02, 2009 12:08 am

PenPen wrote:Shouldn't it be possible to build a 25W Bassman with just a single 6L6?

A single 6L6 would do about 10-12 watts depending on the B+ voltage.

If you don't care about clean headroom with a band, I'd do 2 EL84s at 15-18W a-la the TT. EL84s are small, so you'd easily be able to fit them in that chassis with enough room to breathe.

15W with a 2x10 cab would be awesome and give you plenty of volume for most stuff.

Josh · Post by **Josh** » Mon Mar 02, 2009 12:13 am

This Project is going to be tough.
How am i going to make the chassis and junk?

Reece · Post by **Reece** » Mon Mar 02, 2009 12:14 am

Meccano

Josh · Post by **Josh** » Mon Mar 02, 2009 12:16 am

Btw I got the schematic from an AA165 Bassman. Which probably explains the wrong wattage and what im trying to get.

Pens · Post by **Pens** » Mon Mar 02, 2009 12:21 am

DuoSonicBoy wrote:
PenPen wrote:Shouldn't it be possible to build a 25W Bassman with just a single 6L6?
A single 6L6 would do about 10-12 watts depending on the B+ voltage.

If you don't care about clean headroom with a band, I'd do 2 EL84s at 15-18W a-la the TT. EL84s are small, so you'd easily be able to fit them in that chassis with enough room to breathe.

15W with a 2x10 cab would be awesome and give you plenty of volume for most stuff.

10W should be plenty for that type of project I think. I like that idea. I believe my amp is a Bassman 50 clone and I love it. A lower watt version would be awesome to has.

Or better yet, a low watt Twin clone.

I want to build an amp so badly. I have too many projects to spend money on right now anyway.

superfuzz · Post by **superfuzz** » Mon Mar 02, 2009 12:35 am

If you havent built an amp before, Id do something simple like a champ or a princenton circuit. A great book is the tube amp book, or whatever its called. It pretty much explains how to build a princenton(I think) step by step.

Josh · Post by **Josh** » Mon Mar 02, 2009 12:40 am

Kind of a stretch but...

1. Two Inputs... 1 bass 1 guitar input.
2. everything else bassman style.
3. cabinet shown above.
4. If i cant get a measurement for the cabinet. then i'll do a 1x10.
5.(EDIT) A three way switch (up=bright middle=normal down= deep)

Josh · Post by **Josh** » Mon Mar 02, 2009 12:42 am

superfuzz wrote:If you havent built an amp before, Id do something simple like a champ or a princenton circuit. A great book is the tube amp book, or whatever its called. It pretty much explains how to build a princenton(I think) step by step.

Im building it w/ a friend who is more experienced with amps and electronics.
I wish i knew how to draw up a schematic for what i wanted though.

superfuzz · Post by **superfuzz** » Mon Mar 02, 2009 12:44 am

the_dude wrote:
superfuzz wrote:If you havent built an amp before, Id do something simple like a champ or a princenton circuit. A great book is the tube amp book, or whatever its called. It pretty much explains how to build a princenton(I think) step by step.
Im building it w/ a friend who is more experienced with amps and electronics.
I wish i knew how to draw up a schematic for what i wanted though.

Thats fair, good luck with it!

Im a dunce with electronics, and still might build a princeton after I finish up my car.

Will · Post by **Will** » Mon Mar 02, 2009 12:54 am

You could use the preamp section from a BM, but the power section including the phase inverter would have to be completely reconfigured. If you do 1 output tube, you have to adjust the power section for class A.

Pens · Post by **Pens** » Mon Mar 02, 2009 1:41 am

I've built pedals before, a smallish tube amp ought to be pretty similar.

I could probably take a Twin preamp stage, chop off the reverb portion and such, and tack on the Princeton output stage. That would be neat.

suede · Post by **suede** » Mon Mar 02, 2009 1:44 am

superfuzz wrote: good luck with it!

James · Post by **James** » Mon Mar 02, 2009 1:50 am

I don't really understand what you're saying you want.

You want the head to be physically smaller and 30w. What else is different?