Input jack, new idea ?

[bluescaster]

Hi, is anyone have got the idea before, to put the input jack at the back of the amp ? It will be just aside the 12AX7 (very short wire) and we can shift the pots on the left to have more space for switchs for exemple. What do you think about that ?

I'm building a #124 and would like to have bright,mid,jazz/rock,deep,clean/OD and standby in the front of my amp.

Kind regards.

[Luthierwnc]

It is a lot more common to have the tube in the front than the jack in the back. Dumbles take their root in Black/Silver Fenders with the tubes in a row in the back. Not everybody did that -- Matchless and Alessandro come to mind and you can get gut shots on the web.

Maybe it is just my lack of quality, affordable roadies but I really don't want to get behind the amp (usually against the back wall anyway) with a flashlight in my mouth trying to plug in. sh

[LeftyStrat]

Actually, an idea I had was to put the input on the footswitch for OD and PAB.

A friend and I were brainstorming and decided it would be nice to also have a few 9v outlets on there as well.

That way you have only one 'tripwire' between the amp and the front of the stage.

Not sure what type of cable to use for something like that, since you probably need to shield the guitar signal from all the other noise carrying lines.

[Max]

Dumbles take their root in Black/Silver Fenders with the tubes in a row in the back.

Many Dumble amps have their preamp tubes in two rows. All these Dumble amps with the preamp tubes in two rows have their input tube in the front row.

Cheers,

Max

[trane34]

Doesn't answer your question but just in case you stick with the original inputs...you could use a push/pull volume pot for the bright switch so you can fit the extra deep switch. I had the same wiring in my ceriatone bluesmaster and it was very useful.

[dimitris]

You can also use a push pull pot for the treble and use it's switch for the mid boost.

[Structo]

Quite a few old amps had all the controls and inputs on the back of the amp.
I think it was more for aesthetic reasons than anything.
Then the combo amps got bigger and they put the controls and jacks on top of the amp.

The old Valco Hawaiian amps were small combo amps made during the Hawaiian slide guitar craze in the late 40's.

[img:400:300]http://www.vintageguitaramplifiers.net/ ... 248820.jpg[/img]

In 1953 Fender finally moved them to the front of the amp with the brown tolex amps.

[img800]http://www.rocknrollvintage.com/prodima ... ce%20b.jpg[/img]

The reason they moved the jacks and controls to the front of the amp is simple, they are easier to get to when on the front.
And the angled front of the Fender amps enabled users to see them while standing.

Now, the thing that has bothered me all these years is why they continued to put the power and standby switches on the rear.....

[renshen1957]

Quite a few old amps had all the controls and inputs on the back of the amp.
I think it was more for aesthetic reasons than anything.
Then the combo amps got bigger and they put the controls and jacks on top of the amp.

The old Valco Hawaiian amps were small combo amps made during the Hawaiian slide guitar craze in the late 40's.

[img:400:300]http://www.vintageguitaramplifiers.net/ ... 248820.jpg[/img]

In 1953 Fender finally moved them to the front of the amp with the brown tolex amps.

[img800]http://www.rocknrollvintage.com/prodima ... ce%20b.jpg[/img]

The reason they moved the jacks and controls to the front of the amp is simple, they are easier to get to when on the front.
And the angled front of the Fender amps enabled users to see them while standing.

Now, the thing that has bothered me all these years is why they continued to put the power and standby switches on the rear.....

Hi Structo,

The date on the later Fender amp must be a Typo, 1959 is closer to the mark, (not to nitpick) and after another manufacturer SoCal amp manufacturer in Temple City (not that far from Fender's factory) had introduced the feature. While we are on the subject, Fender nicked a few more ideas from Bob Crooks over at Standel

Standel's firsts:

Use of JBL speakers in a musical instrument amplifier (1953)
Piggyback amps (1957) (Head and Cabs) (Fenders first Head and Cab was a custom one of built Bassman Head in 1958)
Front panel dial (1957 introduced) (combos)

Standel was among the first amplifier (if not the first) to have separate "bass" and "treble" controls. Up until that point, Fender amps just had one "tone" control.

Amps were original placed on the front of the stage (Tweed and earlier amps had the controls on the back) and started to progress to the back of the stage. Beginning in the mid-1950's, guitar players started putting their amps behind them, and he noticed several players really having trouble seeing where their volume & tone controls were set, with the controls on the top or back of the amp.

Having Joe Maphis, Jaquine Murphy, Merle Travis, Larry Collins, and Chet Atkins using your amps didn't hurt either.

Best Regards,

Steve