Hi, I'm to old for this hobby and have decided to sell up what I have.
A while ago I started but never finished a Hiraga Super 30w amp. I got as far as building 2 complete modules then I had to stop due to health issues.
So what you see in the photos are 2 Hiraga Super 30w Kubota modules with 2 CAP MX modules.
The input transistors are gain matched 2sa872a and 2sc1775a pairs.
The main driver transistors are high speed 2sa875 and 2sc2275.
The output transistors are gain matched Mjl1302a and Mjl3281a.
The capacitance multiplier output transistors are also Mjl1302a and Mjl3281a.
I have limited the bandwidth to 500khz to ensure stability and they sound fantastic with +-32v power supplies.
The heatsinks in mm, are 266w x 200h x 74d and were previously used in a class B amp that's why there's a few 3mm holes in them.
The white pcb's are loud speaker protectors that use a design I found on this site, can't recall which one though?
I'm also including the unpopulated heatsinks as I don't have any use for them.
Get in touch if your interested.
Also due to the weight of the heatsinks, packaging may be an issue?
A while ago I started but never finished a Hiraga Super 30w amp. I got as far as building 2 complete modules then I had to stop due to health issues.
So what you see in the photos are 2 Hiraga Super 30w Kubota modules with 2 CAP MX modules.
The input transistors are gain matched 2sa872a and 2sc1775a pairs.
The main driver transistors are high speed 2sa875 and 2sc2275.
The output transistors are gain matched Mjl1302a and Mjl3281a.
The capacitance multiplier output transistors are also Mjl1302a and Mjl3281a.
I have limited the bandwidth to 500khz to ensure stability and they sound fantastic with +-32v power supplies.
The heatsinks in mm, are 266w x 200h x 74d and were previously used in a class B amp that's why there's a few 3mm holes in them.
The white pcb's are loud speaker protectors that use a design I found on this site, can't recall which one though?
I'm also including the unpopulated heatsinks as I don't have any use for them.
Get in touch if your interested.
Also due to the weight of the heatsinks, packaging may be an issue?
Hi, hows the building going? I have a Hiraga 30W im gone upgrade to Kubota. Have kit from Jims, just waiting for some swaping parts for the board.
Frank
Frank