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Old 19th June 2014, 05:53 PM   #11
YashN is offline YashN  Canada
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Default Initial chassis priming, painting and sanding and motor run cap.

Quote:
Originally Posted by bbakertx View Post
If only they made a square/rectangle one for IEC inlets.....
Haha!

What I'll do for the IEC hole is use a medium thickness wood plate and drill several holes along the lines, then sand them until the IEC plug fits. The IEC plug, filter and fuse are salvaged from an old synthesizer.

Question: is the motor run cap necessary or optional?

Pre-primer sanding (you can probably discern a little layer of epoxy around the holes drilled for the transformer wires to prevent abrasion of the insulators):

Click the image to open in full size.

Some primer after hammering out most of the kinks:

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Several coats of primer:

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Some good results with primer sanding on the lower left:

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Attached Images
File Type: jpg Chassis 2.jpg (998.0 KB, 215 views)
File Type: jpg Chassis 4.jpg (1,003.5 KB, 129 views)
File Type: jpg Chassis 5.jpg (983.8 KB, 130 views)
File Type: jpg Chassis 3.jpg (991.4 KB, 137 views)

Last edited by YashN; 19th June 2014 at 06:01 PM.
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Old 19th June 2014, 06:22 PM   #12
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Quote:
Originally Posted by bbakertx View Post
+1 on the stepped drill bit for round chassis holes.
I bought a Milwaukee 2-size set for about $60 and have had great results.

If only they made a square/rectangle one for IEC inlets.....
Greenlee makes a punch for that but it's not cheap.

Cheers,
Bob
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Old 19th June 2014, 06:24 PM   #13
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For making such holes a hole punch is very good.
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Old 19th June 2014, 08:59 PM   #14
YashN is offline YashN  Canada
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Does anyone know where I can source the sockets and tubes as well as the caps in one place, preferably from Canada?
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Old 19th June 2014, 11:50 PM   #15
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Quote:
Originally Posted by YashN View Post
Does anyone know where I can source the sockets and tubes as well as the caps in one place, preferably from Canada?
Youbetcha...

Parts ConneXion - The authority on hi-fi DIY parts and components

They should have just about everything you need. I'd use them cept they are in .... ahem Canada Eh?

Cheers,
Bob
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Old 20th June 2014, 03:50 PM   #16
YashN is offline YashN  Canada
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Hey Bob, I was just looking at them, built a temporary shopping list with 4 sockets, choosing the Teflon-composite silver PCB mounts, and the total is $33. Things add up quickly!

I think they only have expensive tubes, so I may have to get the sockets from them and source the tubes elsewhere for a more affordable price.
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Old 20th June 2014, 06:29 PM   #17
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Location: Toronto, Ontario
Quote:
Originally Posted by YashN View Post

I think they only have expensive tubes, so I may have to get the sockets from them and source the tubes elsewhere for a more affordable price.
Right now Parts Connection have a 20% off almost everything including vacuum tubes.
They usually have this offer twice per year. These are the times when I get my
vacuum tubes from them. I have purchased several times over the past few years.
I find that even with the HST tax it is still cheaper than ordering from the USA.
I'm referring to tubes like Electro Harmonix, Sovtek, and reissue tubes like Tung Sol,
Gold Lion, Mullard and others.
The 20% off goes for other stuff as well - resistors, capacitors, connectors, etc.
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Old 20th June 2014, 06:54 PM   #18
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Don't what kind of tubes you are looking for but you can try the sale here
Sonic Craft Specials
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Old 20th June 2014, 09:15 PM   #19
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Quote:
Originally Posted by YashN View Post
Hey Bob, I was just looking at them, built a temporary shopping list with 4 sockets, choosing the Teflon-composite silver PCB mounts, and the total is $33. Things add up quickly!

I think they only have expensive tubes, so I may have to get the sockets from them and source the tubes elsewhere for a more affordable price.
I use the cheap Chinese ceramic versions for $2/pc they work fine. There's not going to be a sonic different between a $2 socket and a $10 gold pin ...

For tubes which tube are you thinking about using?? For driver I'd get an old stock 12AT7 - I don't like the sound of the reproduction (12AT7) tubes at all. The old stock sound very good and readily available look for Sylvania they should be in expensive and sound good. You can upgrade them later if you want to roll tubes in. Trust me on the new stock driver tubes they will make the amp sound like crap.

Cheers,
Bob
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Old 21st June 2014, 12:15 AM   #20
YashN is offline YashN  Canada
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Hopefully some affordable 6L6GC, and then I'll also need a rectifier tube and another one.
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