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FDP Forum / Amp Mods, Repairs, and Projects / Vibroverb Reissue - ground switch

telefender

canada

fender50
Jan 3rd, 2017 10:15 AM   Edit   Profile   Print Topic   Search Topic

purchased used Vibroverb RI - opened up chassis and noted that the toggle switch ( ground switch) has 3 prongs in the chassis / non of them have been hooked up (soldered on ) Is that possible ??
Does the RI VVRB not require a ground switch ? Any answers will be appreciated .thns

telefender

canada

fender50
Jan 3rd, 2017 11:28 AM   Edit   Profile   Print Topic   Search Topic

Just got off the phone with Darrell at Fender / says the switch is there for cosmetics .... to look like the vintage VVRB. Are we that vane as consumers ??? switch has no function whatsoever.


pdf64

UK

Jan 3rd, 2017 02:57 PM   Edit   Profile   Print Topic   Search Topic

Well, no-ones going to NOT buy the amp just because the ground switch is for cosmetic purposes only.
But a few lost sales due to the switch not being there soon outweighs the cost of fitting one.

Consider that standby switches, whilst being of no technical merit, have to be fitted (and in this case, actually function) purely because customers expect them to be there.
It's too big and fruitless a task for any manufacturer to buck the trend and attempt to expose the myth / re-educate the market, particularly as most of the major manufacturers have been perpetuating the myth (to some extent at least) for decades.

Peegoo
Contributing Member
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**********
******

The spotlight

looks like a prison break
Jan 3rd, 2017 04:32 PM   Edit   Profile   Print Topic   Search Topic

"Are we that vane as consumers ???"

It's not vanity--it's nostalgia. Guitar and amp makers know how to capitalize on the nostalgia factor.

Guitarists are like fish: if the plastic worm is the correct color--they bite every time.

Hammond101
Contributing Member
**********

So. Cal. USA

Jan 3rd, 2017 05:22 PM   Edit   Profile   Print Topic   Search Topic

I built a run of Deluxe Reverb hand wired clones for a large retailer. They all had a ground switch that did absolutely nothing. Better than a chrome plug in the chassis hole.

(This message was last edited by Hammond101 at 11:09 AM, Jan 4th, 2017)

telefender

canada

fender50
Jan 4th, 2017 03:47 PM   Edit   Profile   Print Topic   Search Topic

Well ...my first thought when I opened the chassis was that the amp was incomplete!! (sense of astonishment) Quality control had missed this puppy and released it into the market with a defect .... but a greater degree of astonishment hit me when this blank toggle was merely there to make it appear like all of its forefathers! That's what made me think that something is absurd. Even has the word "ground" typed below it?
Would probably prefer if the words " not required" were there instead.

Richard L
Contributing Member
*****

Netherlands

Jan 5th, 2017 08:59 AM   Edit   Profile   Print Topic   Search Topic

pdf64 - the standby might not be needed from an engineering point of view, but it's handy when changing things at the input - guitar, pedals, etcsaves a lot of pops and bangs.

telefender

canada

fender50
Jan 5th, 2017 10:41 AM   Edit   Profile   Print Topic   Search Topic

OH ...but it does have the standby toggle ... operational too.... are you suggesting that down the road "they" may decide to do away with the standby switch....and simply place a toggle there for aesthetics/nostalgia ... but not operational too? That's just sick and absurd IMO. Don't even suggest that idea to "Fender" as Leo would object somehow!!

pdf64

UK

Jan 6th, 2017 04:47 AM   Edit   Profile   Print Topic   Search Topic

Surely it's at least as easy to pull the input jack plug out a little (thereby operating the shorting contacts and so muting everything prior to the amp)?
Either way, you've still got to be near the amp, and the input jack is more easily accessible on many amps, eg BF / SF designs which have standby on the back panel.

telefender

canada

fender50
Jan 6th, 2017 10:09 AM   Edit   Profile   Print Topic   Search Topic

Sorry but I've lost your train of thought.....

pdf64

UK

Jan 6th, 2017 10:52 AM   Edit   Profile   Print Topic   Search Topic

Richard L put forward the view that standby was a helpful convenience to the user, as a simple means of muting an amp.
Hence my response that it was no more convenient, and on many amps it's less convenient, than pulling the input jack plug out past the 'notch'.

Regarding a possible 'aesthetic only' standby switch future, bear in mind that the switches used are not rated for use in such high voltage circuits.
Obviously it doesn't create liability issues currently, but it would only take one documented occurrence of the use of an underrated switch causing a safety related incident for insurers to require amp designers to review this.



telefender

canada

fender50
Jan 6th, 2017 02:16 PM   Edit   Profile   Print Topic   Search Topic

I guess that sounds practical in my mind...but so would placing the on/off switch in the front of the amp instead of the back. In the back it is recessed ...some protection/ but in the front it is open to damage and accidental bumps....but more accessible for the user. Can't win them all and I assume that the engineers look at design and practical application with a tad of aesthetics. For real safety toggle arm should be non conductive.....plastic?

FDP Forum / Amp Mods, Repairs, and Projects / Vibroverb Reissue - ground switch




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