J0K3RX wrote:The power amp section shouldn't be too hard to figure out.
karul wrote:J0K3RX wrote:The power amp section shouldn't be too hard to figure out.
It's a five legged chipamp, probably TDA2003, if not, then TDA2030, TDA1875, or something similar.
J0K3RX wrote:Alrighty then... Sorta good news, the IC's in the one I got have not been sandedThere are 4 of the JRC4580's and one TLC2262. There is a 78L09 voltage regulator and of course the TDA2003. There are 5 other transistors all SMD and a combination of through hole and SMD resistors and caps... The input jack is totally shielded which is a good idea on this thing cause the gain is through the roof but, it's very noise free.. Guess that shield does it's job. I will start getting the values of all the parts soon and then start connecting the dots. This thing is totally traceable..
I will tare this thing down to the bone if needed.
I already know I am gonna have to remove the SMD cap to get a good read on them. Probably remove the jacks also for better access.. Hi-Res pics will follow.
marmaliser wrote:Can't wait to see this one. I have an early 80's Marshall lead 12 Stack that I think this would be cool in (make a new chassis for it whilst i refurbish the lead 12)
If i can be of any help just shout up. I can work my way round diptrace and don't mind ordering boards
notnews32 wrote:Awesome! I can't wait to see your pictures and your trace of the circuit. The demos of this little guy DO sound great.. I've been looking into building a small amp lately, something in the vein of the Superfly submini tube amp or the Ruby-Q (the ROG Ruby + Mr. EQ in one), something with lots of quality tonal capabilities in a small package. This Hotone Heart Attack sounds like it fits nicely into that category of small versatile amps for sure!
I'll be checking back often. Thanks again!
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