Everything You Ever Wanted to Know Part II

[Max]

Having tremolo would be pretty cool.

I know of only three ODS amps with Tremolo: This Borderline Special and the two ODS 150W amps built for Todd Sharp (#0120 and # 0121) I've attached a picture of #0121.

picture source: http://upload.wikimedia.org/wikipedia/c ... _Front.jpg

[David Root]

Thank you so much Gil! We all owe you bigtime!

[Rob Livesey]

The amp has been added permanently to my Dumble archive now

Archive at: http://www.roblivesey.com/dumble

The amp at: http://www.roblivesey.com/dumble/Dumble ... 20Special/

Thanks Gil !
Rob.

[lyman]

the amp:

http://www.youtube.com/watch?v=6efQ_GyQW3o

Cool song! Thanks for sharing. I want to check out some more of this stuff now.

[telentubes]

Thanks Gil. Extraordinary. Don't know how you do it.

[tjauernig]

Thanks for the info Gil. Very Cool INDEED.

[Tonegurus]

"Download away, bitches!" Loved it.

Mike

[butwhatif]

Were the values of the V2A and V2B snubber caps identified on the Borderline?

[groovtubin]

the amp:

http://www.youtube.com/watch?v=6efQ_GyQW3o

http://www.youtube.com/watch?v=Ko8GvPZA ... re=related

Jim
AFAIK Feelin Bad Blues Blues was played on the Alligator Pentode (EF-86) Music Man amp high voltage output section..I love that tone..Deep on..
Both Boarderline and Alligator SSS were origionally built for Ry

Tony

Well it`s STILL Dumble tremolo, no matter how you slice it, thanks for the wellspring!

jim

[Bear]

I haven't sighted an opto roach in there. Bias trem?

[talbany]

http://www.youtube.com/watch?v=Ko8GvPZA ... re=related

Jim
AFAIK Feelin Bad Blues Blues was played on the Alligator Pentode (EF-86) Music Man amp high voltage output section..I love that tone..Deep on..
Both Boarderline and Alligator SSS were origionally built for Ry

Tony

Well it`s STILL Dumble tremolo, no matter how you slice it, thanks for the wellspring!

jim

Jim
I hate to be a stickler for accuracy but actually it's not Dumble tremolo... The tremolo in the Alligator SSS utilizes the Opto bug pretty much the same one used in the Blackface era amps..
Tony

[Max]

Opto bug and pretty much stolen straight off the Blackface era amps.

I'm not familiar with many Fender blackface amps and the way their tremolo sounds. But in regard to the Dumble amps with tremolo I know I can say that what I like very much about their tremolo sound is that AFAIR you can adjust the tremolo to be slow and deep and to be what I can only describe as very "musical". But I admit that now at least twenty years have past since I played a Fender amp with tremolo. "Feelin' Bad Blues" e.g. is IMO a rather typical example for the tremolo sound of the Dumble amps with tremolo I know. But perhaps the tremolo of a Fender blackface amp sounds similar?

59Pro could perhaps try to describe the differences between the sound and feel of a Fender tremolo before and after Alexander Dumble modifies a Fender amp - if 59Pro should like to do so.

Cheers,

Max

[talbany]

Max
Nothing wrong with the Fender style Tremolo circuit when it's operating..However some amp designers don't care for it due to the loading effect it has on the phase inverter even when the effect is off, so some prefer the cleaner signal path of the bias wiggler type like what's in the Boarderline amp..

Hope this Helps

Tony

[Max]

However some amp designers don't care for it due to the loading effect it has on the phase inverter even when the effect is off, so some prefer the cleaner signal path of the bias wiggler type like what's in the Boarderline amp..

Tony, the "opto bug" I remember to have seen only in those Dumble amps with a phase inverter / driver configuration. So perhaps Alexander Dumble just preferred it in his amps with such an inverter / driver configuration to achieve the tremolo sound asked for by his customers - just speculating.

All the best,

Max

[groovtubin]

Jim
AFAIK Feelin Bad Blues Blues was played on the Alligator Pentode (EF-86) Music Man amp high voltage output section..I love that tone..Deep on..
Both Boarderline and Alligator SSS were origionally built for Ry

Tony

Well it`s STILL Dumble tremolo, no matter how you slice it, thanks for the wellspring!

jim

Jim
I hate to be a stickler for accuracy but actually it's not Dumble tremolo... The tremolo in the Alligator SSS utilizes the Opto bug pretty much the same one used in the Blackface era amps..
Tony

That`s fine and dandy.......for the sake of amps..would venture to say that a fender tremolo circuit in a DUMBLE amp does NOT sound the same as in a fender amp!

peace, jim