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 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

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It is currently 28 Feb 2020, 10:58

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 Post subject: Re: 6V6 PP amp
PostPosted: 24 Oct 2019, 17:26 
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Joined: 23 Feb 2017, 02:02
Posts: 595
The main thing about chockes is for the simulated caluclations to work, the core must not saturate
Real life the most filtering transformers saturate and you do not get the filtering effect


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 Post subject: Re: 6V6 PP amp
PostPosted: 13 Feb 2020, 12:16 
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Joined: 06 Oct 2015, 22:05
Posts: 24
and so it begins:
Attachment:
temp.jpg


I've been hearing about Greenlee punches for years and they really are great.


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 Post subject: Re: 6V6 PP amp
PostPosted: 13 Feb 2020, 22:33 
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Joined: 13 Jan 2018, 21:33
Posts: 268
Location: australia
Looks like a cool project. I used the stepped drill for the holes and worked ok. Your greenlees would be way more accurate I'd guess. Good luck.

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 Post subject: Re: 6V6 PP amp
PostPosted: 14 Feb 2020, 11:27 
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Joined: 06 Oct 2015, 22:05
Posts: 24
The stepped bits are nice too. I used that for the holes for the wires from the transformers that I did last night.

I stumbled on a single used greenlee punch for sale at a really good price that was the exact size for the tube sockets. For me it was nice because it took the fear of going one too many notches down the stepped bit.
Now I just need a rectangular punch for the iec power connector. I keep telling myself that this time I will go slow and do a clean job of that one


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 Post subject: Re: 6V6 PP amp
PostPosted: 14 Feb 2020, 17:13 
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Joined: 13 Jan 2018, 21:33
Posts: 268
Location: australia
invaderzim wrote:
The stepped bits are nice too. I used that for the holes for the wires from the transformers that I did last night.

I stumbled on a single used greenlee punch for sale at a really good price that was the exact size for the tube sockets. For me it was nice because it took the fear of going one too many notches down the stepped bit.
Now I just need a rectangular punch for the iec power connector. I keep telling myself that this time I will go slow and do a clean job of that one


I recall @Gio posted a few years back he used a Klein nibbler even on a steel chassis. I looked and couldn’t find one or a compatible in Aust . I used a strip nibbler which got me part of the way followed by a couple of hours of filing. Got to be a better way. than that though.

easy search: viewtopic.php?f=14&t=4547&p=50310&hilit=klein#p50310

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 Post subject: Re: 6V6 PP amp
PostPosted: 24 Feb 2020, 11:29 
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Joined: 06 Oct 2015, 22:05
Posts: 24
I wish I had a larger chassis for the build. It looked big until I got everything mounted and now things are quite close and there isn't enough room underneath for a nice layout to be easy. And I need it to be as easy as possible ;)

It is 8 x 12 and the 10 x 17 seems to be a much more commonly used size.


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