I've been patching and keeping my test bench going when I have time for almost 30 years but today is the time to get it fixed back up the way it should be. My old Rockford Fosgate Power 300 finally has some noise in the right channels that has to be fixed so for now my old HiFonics Gemini is going to take it's place for awhile. My old Rockford is almost 40 years old so it's done really good but you can't buy amps like that any more so it will be fixed when I get time. My Gemini is about the same age, they were in different vehicles back in the day when I did the car audio shops thing. The test bench isn't just for testing, it runs the sound system and subs in the shop and I like my music lol. 
The Gemini used to be in the bench until a battery exploded in there about 20 years ago so I just put the Rockford in there. 20 years (yes 20 years) of needing to fix that amp has me thinking more and more about getting my priorities a little more in order now... One evening last month I got it back out, soaked it in baking soda (it neutralizes battery acid) and washed it out with hot water, let it dry out for a week and it was back up and running again. Saying they don't make things like they used to is a real understatement... It's been sitting on the bench running for the past 3 weeks or so, so today is the day for tidying things back up, getting things hooked back up right that were patched or bypassed for troubleshooting it, and getting it all back together so I have room to work there again.
Jim Fosgate was a smart guy that started Rockford Fosgate that I had a pleasure to know back in the day. He was one of those self taught repair guys that invented the car amplifier in 1973, invented and received an Emmy Award in 2003 for the development of surround sound for tv, he ran Fosgate Laboratories and lead the team that created Dolby Pro Logic II among other things. He did a lot of things not many peeps have common knowledge about that should be on Wiki but no one has put them on there. Some more on him here -
Wiki on Jim Fosgate
More here
More here including his Museum pics
I was just thinking how blessed I am to have known people like him, Bernie Boland and Sam Taylor (Orion founders) Frank and his son Mark Pyle (Pyle Driver), Paul Klipsch (Klipsch Speakers and inventor of the Horn for speakers) Helmut Stieglitz (Founder and designer of HiFonics) and many many others who were pioneers in the audio and electronics fields, they are and were real inventors much like Cecil Pond.