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FT: DU 67 with K6 beezkneez and AMI T67
- Thread starter Mahasandi
- Start date
Help Support GroupDIY Audio Forum:
- Joined
- Jul 15, 2009
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Check for a starter if your AMI T67 has thge corrected wiring first , it will be day and night ,
Errata Feedback winding polarity http://groupdiy.com/index.php?topic=50021.800 reply # 814
AMI T67 Corrected Wiring to main microphone pcb
From transformer board to mic PCB
Pad 5 -----> mic pcb pad T1212
Pad 12 -------> mic pcb pad T55
Pad 1 --------> mic pcb pad T44
Pad 4 --------> mic pcb pad T11
Pad 7 --------> mic pcb pad T1010
Pad 10 ------> mic pcb Pad T77
Best,
Dan,
Errata Feedback winding polarity http://groupdiy.com/index.php?topic=50021.800 reply # 814
AMI T67 Corrected Wiring to main microphone pcb
From transformer board to mic PCB
Pad 5 -----> mic pcb pad T1212
Pad 12 -------> mic pcb pad T55
Pad 1 --------> mic pcb pad T44
Pad 4 --------> mic pcb pad T11
Pad 7 --------> mic pcb pad T1010
Pad 10 ------> mic pcb Pad T77
Best,
Dan,
Dan
Thanks you are the best!!!!
I will triple check but I think I did it right as far as the wiring goes.
I think TSK guy mentioned the AMI is meaty sounding - I must say I find the BV12 softer and more like the examples of U67 I prefer...Of course it's all opinions at this level but....
I did rewire the transformer as per your instructions:
Thanks you are the best!!!!
I will triple check but I think I did it right as far as the wiring goes.
I think TSK guy mentioned the AMI is meaty sounding - I must say I find the BV12 softer and more like the examples of U67 I prefer...Of course it's all opinions at this level but....
I did rewire the transformer as per your instructions:
poctop said:poctop said:Mahasandi said:I bought a great DU67 build from a member here - He wanted to find the right fuse on the power supply (iyt has a wrong value one in there)
we could never find a time to meet - (busy lives)
he also wanted to re-wire the x former.
It sounds great- but would a x former rewire change the sound much?
See here for complete relationship between pad number and transfomer on the AMI and various transformer mic pcb version
http://groupdiy.com/index.php?topic=50021.msg720336#msg720336
if you Have the T67 AMI transformer (Rewire is only valid for the AMI T67 of D-67 or D-269c any other transformer can be wired correctly from the wiring guide of the pcb ) yes it will make the sounds better the top end will be much sweeter with the corrected feedback wiring as seen in this thread,
does any one no where I can get the correct fuse value for the power supply?
i usually stick a 0.3A if you are in north america,
Hope this helps,
Dany,
with wiring error
https://dl.dropboxusercontent.com/u/43869772/U67/Feedback%20winding%20Correction/Orginal.wav
With wiring correction WoW
https://dl.dropboxusercontent.com/u/43869772/U67/Feedback%20winding%20Correction/Corrected.wav
Any and all help appreciated!
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