Bottlehead Forum Bottlehead Forum
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Now taking orders for the Tode, Bottlehead's new guitar amp kit!
 
   Home   Help Search Calendar Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: I painted my crack white.....  (Read 2292 times)
0 Members and 2 Guests are viewing this topic.
milosz
Newbie
*
Offline Offline

Posts: 31


View Profile
« on: August 10, 2010, 02:01:06 AM »

Do you spot what I did differently on mine?

Finish- Alder base: Minwax "chestnut" stain, 5 coats Minwax wipe-on poly. 

Finish - Top Plate: 2 Coats Rustoleum gloss white paint, coat of Rustoleum clear gloss lacquer

The little toggle switch lets me select between stock electrolytic output coupling caps and metalized polypropylene film caps.

Knob is machined aluminum with fine diagonal knurl by Kilo (sold by Digikey)

I seem to have lost the Bottlehead badge I bought, when it turns up I will put that on the front.

.
Logged
Grainger49
Hero Member
*****
Offline Offline

Posts: 3079


Audio Cheapskate


View Profile
« Reply #1 on: August 10, 2010, 05:08:10 AM »

I'm fighting typing something that would sound rude (in reference to the thread title).  Your headphone amp looks very nice.  How is that for restraint?  

I'm amazed at the grain others get from the base, mine always turn out pretty ugly.

Did you paint the transformer and end bell the same as the top plate?  Looks like it.
« Last Edit: November 28, 2011, 05:27:58 AM by Grainger49 » Logged

Grainger Morrison,

Mozzie quote: Sacred cows make the best hamburgers!

Remember, YOU are the only one who needs to be happy with the sound of your system.

Eros (Mods Have Begun!)/FP-2/Paramour 1/upgrades to all - PS Audio Regenerator, Triangle Zerius Speakers, BA Sub
Caucasian Blackplate
Hero Member
*****
Offline Offline

Posts: 546



View Profile
« Reply #2 on: August 10, 2010, 07:06:32 PM »

Do you spot what I did differently on mine?


The little toggle switch lets me select between stock electrolytic output coupling caps and metalized polypropylene film caps.

That is a neat idea!  Just as a matter of precaution, be sure there are 2.49k resistors from the output of both sets of caps to ground, just so the startup voltage can be sunk quickly on both sets.
Logged

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man
milosz
Newbie
*
Offline Offline

Posts: 31


View Profile
« Reply #3 on: November 28, 2011, 04:23:27 AM »

I'm fighting typing something that would sound rude.  Your headphone amp looks nice.  How is that for restraint? 

I'm amazed at the grain others get from the base, mine turn out pretty ugly.

Did you paint the transformer and end bell the same as the top plate?  Looks like it.

Yes the transformer is all painted white.  I put a few coats of primer on the laminations with some sanding in between.  Gave them a bit more shine, the top surface of the laminations has a bit of a rough texture.  I imagine if you built up enough primer on the core you could make it altogether smooth.  I'd be wary of that much paint cracking under heat, though.
Logged
Wardsweb
Full Member
***
Offline Offline

Posts: 185



View Profile WWW
« Reply #4 on: November 28, 2011, 05:27:54 AM »

I used red glazing putty on mine. It is a automotive body filler. It dries really quick and sands smooth. It has been on my SEX amp for years without issue.
Logged
Laudanum
Hero Member
*****
Offline Offline

Posts: 575


View Profile
« Reply #5 on: November 28, 2011, 12:20:01 PM »

Do you spot what I did differently on mine?


I've never seen a white top plate.  But I assume you mean that you "flipped" it?   I like the white by the way, different.
Logged

Desmond G.
milosz
Newbie
*
Offline Offline

Posts: 31


View Profile
« Reply #6 on: April 11, 2012, 03:08:59 AM »

Yep, the top plate is reversed.
Logged
wullymc
Newbie
*
Offline Offline

Posts: 15


View Profile
« Reply #7 on: April 11, 2012, 07:10:21 AM »

Nice!  me likey!!! 

That is a fine looking amp!  Congrats
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.10 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!