Well, it's done! In a nutshell this is the most significant return on investment I've ever experienced with a gear/componet upgrade ever in my 49 years. George at Metropoulos Amplification is nothing short of a genius and a real gentleman to work with. The depth and headroom on the amp is incrediable. This thing would poop out and become all distortion at 11 O'clock with the old OT. Now it goes into a sweet SVT overdirive that I've always wanted but only have had to listen to in the past on recordings (think Adam Clayton -Bullet in the Blue Sky bassline.) Thick meaty in yo face tone. This is an SVT!!!
Shout out to Cris (BASSOBALLS) who was my mentor in helping to get me through this project. Hodgy at Ampeg also for his support and guidance.
Below is a quick tutorial of the install that took about 2 hours today. Note that if you take on a project such as tearing into a tube amp you better have a clue as voltages inside these things are deadly.
The patient: Korean SVT VR preped for surgery
Underside board that needs to come off..
Start unplugging jumpers and cutting zip ties..
Remove all the hex nuts/screws on the back panel..
We have access!!
Pull off the OT leads and unbolt the OT..
Feed the leads through the gromet and Out it all goes...
Spot the quality product...
Unbolt the brackets from the old OT and install on new OT
Bolt in the new tranny feed the leads through
Plug in the leads
Reassemble board to chassis ..getting those little bias lights lined up took some time f...
Zip tie everything nice and neat...
Back in the amp box.. install the good stuff ..fire up..re bias/ balance
Coolest kid on the block...SVTVR with the 1969 sound NAILED!!!