Blackheart Amp Conversion

Converted the amp to the Mojo Musical Supply circuit board

The top picture is the stock amp with the printed circuit board. The idea is to remove everything and install the Mojo point to point eyelet board. The kit takes advantage of the extra winding on the stock power transformer to add a tube rectifier. The kit comes with the tube socket. A large hole needs to be punched into the chassis and the socket installed. (See the socket installed above the board)

Below picture is the installed board.

Click on the picture to jump to the Mojo Musical Supply kit site.

Blackheart Amp converted with a Mojo circuit board and Mercury Magnetics Transformers I had the opportunity to convert a stock Crate Blackheart Amp into a killer boutique amp.
	Here is the stock amp.
	Converted the amp to the Mojo Musical Supply circuit board The top picture is the stock amp with the printed circuit board. The idea is to remove everything and install the Mojo point to point eyelet board. The kit takes advantage of the extra winding on the stock power transformer to add a tube rectifier. The kit comes with the tube socket. A large hole needs to be punched into the chassis and the socket installed. (See the socket installed above the board) Below picture is the installed board. Click on the picture to jump to the Mojo Musical Supply kit site.
	Enter Mercury Magnetics Transformer Kit - Strip it again! Changed our minds... Decided to give the Mercury Magnetics (MM) transformer a trial. Ordered the kit and the first thing we did was A/B the Output transformer with the stock transformer. The MM transformer sounded more rich and open. Time to strip the chassis and do it again. The MM power transformer does not have windings for the tube rectifier. With an A/B test we did notice the sag provided by the tube rectifier. The solid state rectifier kept the bottom end tight. I used the rectifier tube socket to mount my solid state rectifiers. The picture at the right shows the chassis with the Power transformer, Choke and Output transformer installed with the leads coming through.
	Transformers, Choke and Point to point board installed Done. See the tube socket with the solid state rectifier installed? Side notes: The MM kit has a few electronic mods to help the tone. They are all good ideas and were installed. Look closely at the board and you will notice 3 filter caps were changed. The original P2P board from Mojo (in my opinion) did not have enough power supply filtering, I added some.
	BUT... how does it sound??? This amp sounds killer! It is harmonically rich with great note definition. The amp responds great to pick attach. It's truly a boutique amp with great tone.
	Click on the logo to get to the Mercury Magnetics Website I am authorized to sell and install this kit and all of Mercury Magnetics transformers!!

	Blackheart Amp Conversion
	HOME \| "The Standard" \| The FYD Amp \| OPS \| Lightening \| Other Projects \| Parker Fly Page \| Mods \| Tube Amp Repair \| Blackheart Amp Conversion