Lyra said:
Wow that's a big file!
Did you compress it?
Usually there are troubles with attachments > 5MB, splitting the file, if possible, will help.
Anyway I have another email, pirobrothers@tin.it or andypairo@supereva.it
Let me know if these work.
Cheers
Andrea
According to my oppinion, and the pictures the amp is an old AW-65, but the amplifier-boards, and the trafo is from an AW-120 !?.
To be 100% sure you should have the schematics regarding the AW120...but that one I dont have....
If you decide on changing the trafo to a trafo that is more suitable ragarding tha SOA of the output-transistors, i might be interested in bying the AW-120 trafo.
I got an old AW-100 with trafo-hum....quite irritating !!! I think the AW-120 could be able to adapt the trafo from the 120 watter. Slightly higher voltages, but think that could be overcome.
Send me a mail when you have decided, and what you eventually how much money you want for it !?
All the best.
Lyra
To be 100% sure you should have the schematics regarding the AW120...but that one I dont have....
If you decide on changing the trafo to a trafo that is more suitable ragarding tha SOA of the output-transistors, i might be interested in bying the AW-120 trafo.
I got an old AW-100 with trafo-hum....quite irritating !!! I think the AW-120 could be able to adapt the trafo from the 120 watter. Slightly higher voltages, but think that could be overcome.
Send me a mail when you have decided, and what you eventually how much money you want for it !?
All the best.
Lyra
I agree with you but what is strange is that the board has only provision for 1 pair of output devices, unless they are a particularly rugged type.... it seems I will have to remove all these screws and take a closer look....
Cheers
Andrea
PS About selling.. the amp is not mine, but I can ask...
Cheers
Andrea
PS About selling.. the amp is not mine, but I can ask...
My bet is that the output-BJT's is same as the newer AW-60FTT whitch uses 2SC3281/2SA1302 BJT's
Maybe MJL4281A (NPN) and MJL4302A (PNP) could have been used instead. They can stand a little bit more power i think, but not enough to last with tough loads (4ohm etc.), and 46V supplyvoltage.
But who knows, you might be lucky !?
Maybe MJL4281A (NPN) and MJL4302A (PNP) could have been used instead. They can stand a little bit more power i think, but not enough to last with tough loads (4ohm etc.), and 46V supplyvoltage.
But who knows, you might be lucky !?
Tor M said:Hi Lyra!
Is it possible that you have the schematics for the ECI-1 laying around too?
I`ve been asking Electrocompaniet if I could have a copy, but they don`t even bother to answer my mails!
So if you got them I would really appriciate a copy!!!
regards
Tor Martin
After finding that my amp board doesn't match with any of the schematics I have (it is balanced and has also JFET input) I tried mailing Electrocompaniet, explaining the situation and remarking that the mess was caused by a official EC repairer...
Well today they answered me asking a pic of the board to properly identify it and then said they would send me the correct schematic.
I hope we can find a good solution...
Cheers
Andrea
After some days the service department of EC mailed me back with attached the service manual of AW100DMB.
Unfortunately this is still the wrong amp, since mine has JFET input (2sk117)...
Now I wonder who could identify a amp better than the company who made it....
If anyone owning a EC amp would be so gentle to take a look inside his amp and compare it with the photos I posted...
Cheers
Andrea
Unfortunately this is still the wrong amp, since mine has JFET input (2sk117)...
Now I wonder who could identify a amp better than the company who made it....
If anyone owning a EC amp would be so gentle to take a look inside his amp and compare it with the photos I posted...
Cheers
Andrea
Andypairo said:After some days the service department of EC mailed me back with attached the service manual of AW100DMB.
Unfortunately this is still the wrong amp, since mine has JFET input (2sk117)...
Now I wonder who could identify a amp better than the company who made it....
If anyone owning a EC amp would be so gentle to take a look inside his amp and compare it with the photos I posted...
Cheers
Andrea
Think You should ask for the service manual regarding the AW120.....
Have You an opportunity to mail me theese service manuals ?
It just might come in handy some day....
If you look at the service manual of the AW100 I put on my web disk (the one split in 3 gif files) you'll notice that the output setion is the same of ECI-1.... maybe you don't have to ask again...
Cheers
Andrea
PS Can you take some shots of your amp "naked" while fixing it (general view and closeup of boards) ?
maybe you don't have to ask again...Cheers
Andrea
PS Can you take some shots of your amp "naked" while fixing it (general view and closeup of boards) ?
EC Support: A+
I have to praise the customer support of EC: today I got in my mail the schematic of AW120.
Altough not exactly identical to mine (input stage is slightly different) the power section is the same, except for the model and number of power transistors.
Mine mounts a single pair of 2SA1302/2SC3281, the one on the schematic uses 2 pairs of 2SA1943/2SC5200, which are the replacement model for the formers.
As a natural consequence I'm tempted to add another pair, however the lack of emitter resistors calls for matched pairs.
I have MJL1302/3281 or MJL21193/4 available, but the question is: how to match them properly?
On my web disk is available this schematic (AW120.pdf)
Cheers
Andrea
I have to praise the customer support of EC: today I got in my mail the schematic of AW120.
Altough not exactly identical to mine (input stage is slightly different) the power section is the same, except for the model and number of power transistors.
Mine mounts a single pair of 2SA1302/2SC3281, the one on the schematic uses 2 pairs of 2SA1943/2SC5200, which are the replacement model for the formers.
As a natural consequence I'm tempted to add another pair, however the lack of emitter resistors calls for matched pairs.
I have MJL1302/3281 or MJL21193/4 available, but the question is: how to match them properly?
On my web disk is available this schematic (AW120.pdf)
Cheers
Andrea
Can't Download your .arj files.
Dear Andypairo
Try as I might, I cannot get either WinARJ or WinAce to successfully de-compress your .arj files for the AW-100, AW-65 or AW-70.
Each file downloads fully onto my computer. They are the "right size", but there is a problem with the header and the only files which show up are the main folder (AW65/70 or 100) and ONE program I used showed some page numbers.
Would you please check to see that you can download and un-compress the files for me.
If it all looks OK, what program are you using to de-compress them.
Regards,
George
Dear Andypairo
Try as I might, I cannot get either WinARJ or WinAce to successfully de-compress your .arj files for the AW-100, AW-65 or AW-70.
Each file downloads fully onto my computer. They are the "right size", but there is a problem with the header and the only files which show up are the main folder (AW65/70 or 100) and ONE program I used showed some page numbers.
Would you please check to see that you can download and un-compress the files for me.
If it all looks OK, what program are you using to de-compress them.
Regards,
George
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