Guitar Amp Repairs, Custom Amp Builds, Speakers - JPF Amplification http://jpfamps.com JPF Amplification, London's leading amp repairers and builders Wed, 09 May 2012 16:54:02 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 How to wire a mains earth to a US amp with 2 prong cord. NOT! http://jpfamps.com/how-to-wire-a-mains-earth-to-a-us-amp-with-2-prong-cord-not/ http://jpfamps.com/how-to-wire-a-mains-earth-to-a-us-amp-with-2-prong-cord-not/#comments Thu, 03 May 2012 20:51:16 +0000 Frank http://jpfamps.com/?p=1072 When you think you’ve seen every conceivable bodge job on the planet, something comes in that beggars belief.

Here are some snaps from an amp I’ve just worked on.

The amp is US voltage Ampeg Gemini. Someone had installed a step down transformer into the bottom of the cabinet to allow operation from UK mains.  So far so good.

The amp had its original 2 prong US mains lead without a safety earth connection. This is obviously unsafe, and is conventionally remedied by fitting a new 3 prong mains cord and securing the earth to the chassis with a star washer and bolt.

A previous repairer had obviously decide that a new 3-prong mains cord with earth connection was frivolous luxury, and so came up with a novel solution.

Firstly a new earth wire was connected to the vacant earth pin in the female US socket coming from the step down transformer using a wood screw.

Then the other end was “securely” soldered to a ready made hole in the chassis. A light tug and the wire came free.

Good work!!

Suffice to say I fitted an earthed 3 prong mains cord before I powered up the amp.

]]> http://jpfamps.com/how-to-wire-a-mains-earth-to-a-us-amp-with-2-prong-cord-not//feed 0 Barrie Cadogan Youtube demos of new JPF Regent 25 combination amplifier http://jpfamps.com/barrie-cadogan-youtube-demos-of-new-jpf-regent-25-combination-amplifier/ http://jpfamps.com/barrie-cadogan-youtube-demos-of-new-jpf-regent-25-combination-amplifier/#comments Mon, 02 Apr 2012 17:36:40 +0000 Frank http://jpfamps.com/?p=975 As you (hopefully) will have noticed from our home page, JPF Amplification have launched a new amplifier, the Regent 25, powered by a pair of Golden Lion KT66 reissues to give an undistorted 25W.

Barrie Cadogan (Little Barrie & Primal Scream) took delivery of the first 2 x 12″ Regent 25 combination amplifier (see his interview with Guitarist Magazine).

Barrie can be seen (and heard…..) putting his new amplifier through its paces on our Youtube channel using a variety of guitars, including a £109 Squier Bullet. Checkout our media section to access the videos.

The Regent 25 is available both as a head (£875) and as a 2 x 12″ combination (from £1225 depending on speaker configuration).

]]> http://jpfamps.com/barrie-cadogan-youtube-demos-of-new-jpf-regent-25-combination-amplifier//feed 0 Guitar Repairs In Brighton http://jpfamps.com/guitar-repairs-in-brighton/ http://jpfamps.com/guitar-repairs-in-brighton/#comments Fri, 23 Mar 2012 19:27:39 +0000 Frank http://jpfamps.com/?p=842 For anyone living in the Brighton environs looking for a reliable guitar repairer, a good friend of mine and exellcent guitar tech Nathan has now finally got his workshop up and running.

Click here for details.

 

]]> http://jpfamps.com/guitar-repairs-in-brighton//feed 0 Excellent service from Castle Cases http://jpfamps.com/excellent-service-from-castle-cases/ http://jpfamps.com/excellent-service-from-castle-cases/#comments Thu, 08 Mar 2012 21:58:10 +0000 Frank http://jpfamps.com/?p=833 We’ve just taken delivery of a custom flight case for a SC15, which Dave Page is taking on Jonathon Jeremiah‘s latest tour.

Despite working to a tight schedule Castle Cases managed to get the case to us a day early!

A big thanks to Nigel at Castle.h

]]> http://jpfamps.com/excellent-service-from-castle-cases//feed 0 1952/53 Les Paul owners rejoice!! http://jpfamps.com/195253-les-paul-owners-rejoice/ http://jpfamps.com/195253-les-paul-owners-rejoice/#comments Sun, 22 Jan 2012 17:42:32 +0000 Frank http://jpfamps.com/?p=805 As those of you who are into vintage guitars are probably aware, the original incarnation of the Gibson Les Paul released in 1952 was virtually unplayable due to the strings running under (!?) the tail piece rather than over it.

However, help is at hand!

You can now make your 1952/53 playable with the Trapeaze™ from Crazy Pig Designs.

I’ve played a ’52 with the prototype of the Trapeaze™ on it and it really does work, turning an unplayable guitar into an absolute killer.

 

 

 

 

]]> http://jpfamps.com/195253-les-paul-owners-rejoice//feed 0 Vintage Guitar Fair, Exeter 3rd/4th December http://jpfamps.com/vintage-guitar-fair-exeter-3rd4th-december/ http://jpfamps.com/vintage-guitar-fair-exeter-3rd4th-december/#comments Thu, 01 Dec 2011 22:21:06 +0000 Frank http://jpfamps.com/?p=797 Just a quick reminder that JPF Amps will be at the Vintage Guitar Fair, this weekend (3rd/4th December). We will be sharing a stand with Zilla cabs.

We will be offering a 10% discount on any amps purchased/ ordered at the show.

We will the following vintage amps for sale: Fender Deluxe Reverb II (£8o0), Fender 1971 Vibrolux (£1200), Fender 1973 Pro Reverb with flight case (£850) and an 80s 50W 2 input Marshall JCM800 (£650).

]]> http://jpfamps.com/vintage-guitar-fair-exeter-3rd4th-december//feed 0 Barrie Cadogan Interview in Guitarist http://jpfamps.com/barrie-cadogan-interview-in-guitarist/ http://jpfamps.com/barrie-cadogan-interview-in-guitarist/#comments Thu, 01 Dec 2011 22:06:55 +0000 Frank http://jpfamps.com/?p=790 You can now upload the Barrie Cadogan Guitarist interview* in which Barrie talks about his recently acquired JPF 2×12 KT66-loaded Regent combination amplifier.

*Used with permission of Guitarist magazine / Future Publishing Ltd
Words by Jamie Dickson, photographs by Rob Monk
Any unauthorised publication of this feature online or in print is strictly prohibited without the expressed permission of Guitarist magazine

 

 

]]> http://jpfamps.com/barrie-cadogan-interview-in-guitarist//feed 0 JPF Sir Charles “Highly Recommended” by Guitar & Bass Magazine http://jpfamps.com/jpf-sir-charles-highly-recommended-by-guitar-bass-magazine/ http://jpfamps.com/jpf-sir-charles-highly-recommended-by-guitar-bass-magazine/#comments Tue, 15 Nov 2011 20:16:10 +0000 Frank http://jpfamps.com/?p=785 The JPF Sir Charles 15 combination amplifier has been deemed “highly recommended” by Guitar & Bass magazine in their 2011 “Gear of The Year” round up.

Read about this in the lastest issue.

]]> http://jpfamps.com/jpf-sir-charles-highly-recommended-by-guitar-bass-magazine//feed 0 JPF Amplification at 2011 Vintage Guitar Fair in Exeter http://jpfamps.com/jpf-amplification-at-2011-vintage-guitar-fair-in-exeter/ http://jpfamps.com/jpf-amplification-at-2011-vintage-guitar-fair-in-exeter/#comments Wed, 02 Nov 2011 22:56:03 +0000 Frank http://jpfamps.com/?p=780 JPF Amps will be at the Vintage Guitar Fair in Exeter on the 3rd and 4th December, 2011.

We will be sharing a stand with Zilla Music, and will have a selection of our amps at the show so that you can try them out (and the Zilla cabs), and maybe even purchase/ order one! At very least you could stop the general public suffering my guitar playing!

We will be offering a 10% discount on all purchases, with free shipping within the UK if you want an item don’t have at the show.

 

]]> http://jpfamps.com/jpf-amplification-at-2011-vintage-guitar-fair-in-exeter//feed 0 New JPF Sir Charles 15 Combo Review http://jpfamps.com/new-jpf-sir-charles-15-combo-review/ http://jpfamps.com/new-jpf-sir-charles-15-combo-review/#comments Tue, 18 Oct 2011 17:46:55 +0000 Frank http://jpfamps.com/?p=771 Guitar and Bass magazine have reviewed the combo version of our Sir Charles 15 Amplifier.

Click here for a pdf of the review.

We got 92% for our “homework” so I guess they liked it……..

]]> http://jpfamps.com/new-jpf-sir-charles-15-combo-review//feed 0