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Old 16th March 2013, 10:43 AM   #11
AndrewT is offline AndrewT  Scotland
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Rix,
you have twisted the low level inputs, but left a big loop just before the PCB.
All the high currents wire pairs/triplets are untwisted. BIG loops.
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Old 16th March 2013, 12:45 PM   #12
Rixsta is offline Rixsta  United Kingdom
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Quote:
Originally Posted by AndrewT View Post
Rix,
you have twisted the low level inputs, but left a big loop just before the PCB.
All the high currents wire pairs/triplets are untwisted. BIG loops.
Sorry m8 non comprehend lol, do you mean on the amp in the first post or my amp, here's mine just before we did the finishing touches like put speaker terminals in and cleaned up inside.
1.jpg
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Old 16th March 2013, 04:11 PM   #13
AndrewT is offline AndrewT  Scotland
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Same comment.
Untwisted pairs/triplets.
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Old 16th March 2013, 10:03 PM   #14
Rixsta is offline Rixsta  United Kingdom
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Ahh, ok thanks to be honest i hadn't realized before that twisting/not twisting wires could effect anything.
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Old 16th March 2013, 10:23 PM   #15
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I've heard of twisting signal wires but not power wires. What's the benefit? Now I need to crack my B1/F5 open and do that.
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Old 17th March 2013, 09:59 AM   #16
AndrewT is offline AndrewT  Scotland
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Receiving aerials ans transmitting aerials.

Make the Transmitter strong enough and everything will pick it up.

Make the Receiver weak enough and nothing will get picked up.
Treat both sides of transmit/receive.
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Old 18th March 2013, 10:16 PM   #17
Rixsta is offline Rixsta  United Kingdom
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I think this is where having an oscilloscope would be nice and detecting any difference in wires, cheers

Im still wondering what those components are in the Red/black amp i posted at the beginning of this thread if anyone knows ? the red boxes left and right of the PSU. and what that power switch lead covering could be made of ?
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Old 19th March 2013, 08:47 AM   #18
Marra is online now Marra  United Kingdom
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It looks like braided polyester and heatshrink sleaving available from Kayfast on ebay or I would think Maplins also.
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Old 19th March 2013, 10:43 AM   #19
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Quote:
Originally Posted by Rixsta View Post

Im still wondering what those components are in the Red/black amp i posted at the beginning of this thread if anyone knows ? the red boxes left and right of the PSU. and what that power switch lead covering could be made of ?
inductors perhaps part of the LCR filtering for the PSU ? just a guess ....
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Old 20th March 2013, 10:48 AM   #20
Rixsta is offline Rixsta  United Kingdom
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Thanks it seems so, just liked the look of that one.
My friends wondering if the B1 with F5 will be loud enough driven probably from CD player my guess is yes.. of corse theres the other option to build one of the Class-A pre's like Bride of Zen.

Has anyone had a problem with it not being loud enough ?
I know i could Decrease the feedback like some have done for that extra push.
how about
BOZ -> B1 -> F5
or do i not need B1 if i have BOZ
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