** Doug Self Preamplifier Kit ** One last Time ...
** NOTICE **
I have 2 kits left from this last round. Let me know if you want one.
This was probably the last group buy. And because I was asked ...
** NOTICE **
I have 2 kits left from this last round. Let me know if you want one.
This was probably the last group buy. And because I was asked ...
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Hi,
A question for the specialists please : does a good Cermet pot could be good enough or even better than a carbon pist one?
Vishay P11 : http://www.stquentin-radio.com/telechargement/documentation_pdf/potentiometre/C408.pdf
Or is there no impact on the sound because the design made by Douglas Self (5K linear pot & huge gain) ?
(By the way : is it the fourth edition of his book which is going to be launched ?)
Many thanks,
A question for the specialists please : does a good Cermet pot could be good enough or even better than a carbon pist one?
Vishay P11 : http://www.stquentin-radio.com/telechargement/documentation_pdf/potentiometre/C408.pdf
Or is there no impact on the sound because the design made by Douglas Self (5K linear pot & huge gain) ?
(By the way : is it the fourth edition of his book which is going to be launched ?)
Many thanks,
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Eldam,
Many do express a preference for them, however I would not expect these to fit the solder footprint on the PCB. I think that you would be happier with the Alps (or equivalent) that are specified in the BOM.
Thanks Carl,
I even didn't see the size was not good 😱 !
I ask because Pedja Rogic wrote an input about cermet pot he uses in his amp...
thanks for your input & advice above.
I even didn't see the size was not good 😱 !
I ask because Pedja Rogic wrote an input about cermet pot he uses in his amp...
thanks for your input & advice above.
I have a few questions:
1) How much is the kit?
2) What op-amps are used?
3) Are all the parts available from Mouser?
Thanks.
See post #541 for the details. The intended op-amps are the LM4562 in DIP package.
Boards Arrived Safely in Australia - Thank you!
Hi Carl,
My boards kits arrived safely here in Sydney Australia on Monday afternoon.
Thanks Carl!
Cheers!
Rob
Hi Carl,
My boards kits arrived safely here in Sydney Australia on Monday afternoon.
Thanks Carl!
Cheers!
Rob
Hi,
just a quick confirmation: I received my parcel and the electronic documentation.
Thanks Carl!
Cheers,
Sebastian.
just a quick confirmation: I received my parcel and the electronic documentation.
Thanks Carl!
Cheers,
Sebastian.
Well I finally boxed it up. First thing that I installed in a case in over a year. I bought the Slimline 1U case from the DIYaudio store. 280mm deep. I still have to devise a label for the front. I was going to use water slide but the front panel is brushed and I'm not sure how well a decal will stick to it.
I made a mistake when I laid out the back panel and drilled it the opposite of what I had intended, so the PSU ended up on the left side of the case. I wanted it on the right so the controls would have been more centered. Everything works fine as is I just would have preferred it the other way. The only thing bolted down is the PSU. The other boards are held in place by the front and rear panels. The stand-offs are there to prevent the boards from somehow touching the bottom cover.
Here are some pictures for your enjoyment.
Blessings, Terry
I made a mistake when I laid out the back panel and drilled it the opposite of what I had intended, so the PSU ended up on the left side of the case. I wanted it on the right so the controls would have been more centered. Everything works fine as is I just would have preferred it the other way. The only thing bolted down is the PSU. The other boards are held in place by the front and rear panels. The stand-offs are there to prevent the boards from somehow touching the bottom cover.
Here are some pictures for your enjoyment.
Blessings, Terry
Attachments
Looking GOOD Terry. Also, i believe the waterslide decals would look good on that front panel. You can always do a test on the backside it.
Rick
Rick
Thanks Guys,
I had to rework my template for the rear panel I am attaching a PDF with the new, tested template.
Hope this helps someone.
Blessings, Terry
I had to rework my template for the rear panel I am attaching a PDF with the new, tested template.
Hope this helps someone.
Blessings, Terry
