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The most recent problem with my F5 build
The most recent problem with my F5 build
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Old 10th April 2021, 12:43 PM   #41
tyerkey is offline tyerkey
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Join Date: Oct 2012
Location: Axtel KY. If you can find me you are welcome to visit.
Quote:
Originally Posted by dantwomey View Post
Do you mean Q3 and Q4 or Q5 and Q6?

Regards,
Dan
I meant q5 and q6
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Old 10th April 2021, 01:54 PM   #42
dantwomey is offline dantwomey  Canada
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Join Date: Feb 2002
Location: Toronto, Canada
The most recent problem with my F5 build
Very nice. You have a perfectly working power supply and you've identified a key issue. That's great!

Regards,
Dan
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Old 10th April 2021, 02:19 PM   #43
tyerkey is offline tyerkey
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Join Date: Oct 2012
Location: Axtel KY. If you can find me you are welcome to visit.
So, I have decided to just replace q5 and q6. I am also going to switch to the keratherm insulators. I am so tired of grease. Thus I will be waiting until the new parts come in before I go further. By the time I get done with this thing I may actually be qualified to build one.
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Old 10th April 2021, 02:24 PM   #44
dantwomey is offline dantwomey  Canada
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Join Date: Feb 2002
Location: Toronto, Canada
The most recent problem with my F5 build
Quote:
Originally Posted by tyerkey View Post
So, I have decided to just replace q5 and q6. I am also going to switch to the keratherm insulators. I am so tired of grease. Thus I will be waiting until the new parts come in before I go further. By the time I get done with this thing I may actually be qualified to build one.
I use Keratherm as well for the same reasons. Cleanliness and convenience.

Keep in mind that I donít know any DIYer that hasnít made a mistake or two at one point in time. Itís part of the hobby.

Regards,
Dan
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Old 14th April 2021, 11:32 PM   #45
dantwomey is offline dantwomey  Canada
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Join Date: Feb 2002
Location: Toronto, Canada
The most recent problem with my F5 build
Tyer,

The next time you're ordering parts have a look at this. For a couple dollars it's been my best purchase in a while.

https://www.mouser.ca/datasheet/2/427/8-1763439.pdf

Access to this page has been denied.

Regards,
Dan
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Old 18th April 2021, 12:38 AM   #46
tyerkey is offline tyerkey
diyAudio Member
 
Join Date: Oct 2012
Location: Axtel KY. If you can find me you are welcome to visit.
Hi all, I got my new transistors in today. I installed them and the keratherm insulators. I wrestled more with the LEDs. I am currently setting the bias on the second channel. The first went ver smoothly. I have 3 of 4 LEDs working. I’m not sure I care about the 4th one. I want to listen to this amp tonight.
It’s amazing how things work when you install the parts correctly.
Thanks to everyone for your help, virtual trouble shooting, and emotional support.
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Old 18th April 2021, 12:44 AM   #47
tyerkey is offline tyerkey
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Join Date: Oct 2012
Location: Axtel KY. If you can find me you are welcome to visit.
The only question I have left is would the Nutube preamp like this F5 and my frugal horns?
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Old 18th April 2021, 07:16 AM   #48
awc is offline awc  New Zealand
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Join Date: Aug 2009
Im certain somewhere Mr Pass says its a good combination with F5.I guess helps tame F5 3H
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Old 18th April 2021, 02:53 PM   #49
dantwomey is offline dantwomey  Canada
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Join Date: Feb 2002
Location: Toronto, Canada
The most recent problem with my F5 build
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