Hiraga amplifier and Sanken transistors

[TB]

Hello,
I found this website during my web search for schematic of Hiraga amplifier:
http://member.newsguy.com/~stigerik/html/hiraga_leclasse_a_20w.htm
I think, it is original schematic of this amp with PCB made by website owner. I have a question about use of Sanken transistors for output devices.
Can I use Sanken 2SA1216 and 2SC2922 transistors instead of D188 and A627 from original schematic?
Thanks for the help !!!

 

[TB]

Oh well, any ideas, please?

 

[lohk]

I will assist you question. I "found" two good pairs in my scrap box and am tempted to use them in this amplifier. But me too, I am not sure if they are fully suitable.

Klaus

 

[TB]

Hello lohk,
I did search the forum for answers, but I could not get information about Sankens in reference to above schematic. Usually, transistors are being discussed on higher knowledge level than I have. Recommended replacement for Hiraga amp are MJ series from Motorola ( On Semi). I have also found very good opinions about Sanken transistors. I wonder, which are more recommended for Hiraga ? I would also have another question about Sankens. If they would be recommended for this amp, can I use them as direct replacement, or circuit has to be changed to accomodate them?
I hope someone will be willing to help us...........

 

[Fritzell]

Maybe you could download the data pdf for them and compare them if they have similar charactistics, voltage, amps and so on

 

[TB]

Hi Fritzell,
Yes I will do that. I did not want to be leasy, I thought someone already did the comparison. I do not understand all parameters. Usually there are some differences among them. I will try.