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FDP Forum / Fender Amps: Vintage (before 1985) / 3-prong amp, 2-prong Fender Reverb unit

Paulsy

S.F. Bay Area

May 12th, 2019 03:32 PM   Edit   Profile  

Is there any safe scenario using an amp with a 3-prong cord (Blonde Tremoluxe or Tweed Twin R.I.) with a vintage 2-prong Fender Reverb Unit? Or is converting the Reverb to a 3-prong the only safe solution?

(This message was last edited by Paulsy at 05:33 PM, May 12th, 2019)

Pinetree
Moderator Emeritus
(with many stars)

Ja! Nein!

Rammstein!
May 12th, 2019 03:47 PM   Edit   Profile  

The 3-prong conversion is pretty simple to do, so...




slider313

NC

May 12th, 2019 04:01 PM   Edit   Profile  

If you're just playing it a home then reverse the plug on the reverb unit for the least amount of noise. If you're going to gig it, then have a three prong installed.

Peegoo
Contributing Member
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Planet Peegoo

Rhythm & Lewd Guitarist
May 12th, 2019 05:35 PM   Edit   Profile  

Flipping a two-wire plug can be deadly...

If in doubt, use a meter to test for AC voltage between the chassis and ground. You may discover the metal chassis is live at mains voltage.

Best solution is to convert any two-wire equipment to grounded three wire. It's super simple; anyone that can operate a screwdriver and pliers can do it.

Here's how.

Leftee
Contributing Member
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VA

May 13th, 2019 06:58 AM   Edit   Profile  

Another vote for 3-prong. If I get a 2-prong amp, it the first thing I do to it.

pcalu

usa Thumb area Mi

May 13th, 2019 02:18 PM   Edit   Profile  

I have a 69 Bassmen Head w/ 3 prongs and I think a 68 solid state reverb FR100 w/2.

Just have to make sure you have the right polarity, you will hear a hum if you don't.



Bigfoot
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Indy

When I get older, losing my hair...
Jun 24th, 2019 06:12 PM   Edit   Profile  

Safety first! I vote for making the upgrade to 3 prong using Peegoo's easy directions, or have someone familiar with such things do it.

PS: I have a SS FR100 with 2 and now am motivated to make the upgrade before I get zapped.

Roly
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Whitehorse Canada

I don't get out much
Jun 24th, 2019 10:26 PM   Edit   Profile  

Not heeding the advice mentioned above would be foolish.

stl80
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USA

stl80
Jun 25th, 2019 07:26 AM   Edit   Profile  

I've been an election for 40 years. My business partner grabbed a fluorescent light that was mounted on wood with one hand and a steel beam with the other while standing on a ladder. The output of the ballast (high voltage) was shorted to the light fixture. He was shocked such that he couldn't let go. Luckily an employee came into the room and grabbed him from the ladder. Permanent nerve damage. Dangerous stuff. 3-prong.
Jim

FDP Forum / Fender Amps: Vintage (before 1985) / 3-prong amp, 2-prong Fender Reverb unit




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