Lower Wattage Transformer Question

[wattsup]

I would like to build a lower wattage Dumble either a #124 or Bluesmaster design. I'd like to make it somewhere around 15 to 20 or even 30 watts. I'm not sure what type of a transformer to use for PT or OT. Would I have to make any circuit changes? Also, will I still be able to use 6L6's if the wattage is dropped or can this be done at all and still have a good sounding Dumble clone?

[M Fowler]

Oh man there are so many transformers to choose from.

Fender Blackface Deluxe set for around 25w with 6V6's.

Allen Amps has great options to piece together a low wattage transformer set too.

[wattsup]

Oh man there are so many transformers to choose from.

Fender Blackface Deluxe set for around 25w with 6V6's.

Allen Amps has great options to piece together a low wattage transformer set too.

With the 25 watts, will the 6v6's be more suited for the lower wattage or could I still use 6L6's adequately?

[M Fowler]

You can use 6L6GC tubes but no more wattage is achieved but you may like the tone over the 6V6 tubes it's a matter of tonal taste.

[dreric]

I would like to build a lower wattage Dumble either a #124 or Bluesmaster design. I'd like to make it somewhere around 15 to 20 or even 30 watts. I'm not sure what type of a transformer to use for PT or OT. Would I have to make any circuit changes? Also, will I still be able to use 6L6's if the wattage is dropped or can this be done at all and still have a good sounding Dumble clone?

The general consensus is that a big part of what makes a Dumble a Dumble is the 100 watt power amp. This is especially true in the 124 and Bluesmaster circuits. Messing with the formula creates different results, not bad but different.

Here's a member's take on a lower wattage version:

https://tubeamparchive.com/viewtopic.php?t=23090

There are lots of hybrids and variations member have worked through, also the generation 2-3 amps are 50 watts with bassman iron.

If you want a "real" Dumble but just with lower wattage investigate the combination of the Amp + Dumbleator.

Have fun!

[M Fowler]

Or build the Brown Note Dlite or order a Ceriatone Lunchbox kit or parts only to build your own.