1969 Steel Chassis - Next Run?

Get your DIY parts info here!

Moderators: VelvetGeorge, BUG, ValveStorm

Post Reply
ValveStorm
Supporting Advertiser
Posts: 249
Joined: Wed Mar 16, 2011 5:31 am
Just the numbers in order: 7
Contact:

1969 Steel Chassis - Next Run?

Post by ValveStorm » Mon Jul 22, 2013 7:44 pm

Hey Everyone!

Getting ready to do another run of the 1969 chassis:
http://valvestorm.com/1969%20Chassis

The last run had nicely welded (but not folded) corners, and the clear zinc chromate finish...
For the next run, I want to do the folded (and spot welded) corners with the gold finish.

Feedback?
ValveStorm.comParts, parts parts!

audioclone
New Member
Posts: 25
Joined: Wed Feb 03, 2010 11:43 am
Just the numbers in order: 7

Re: 1969 Steel Chassis - Next Run?

Post by audioclone » Tue Jul 23, 2013 8:21 am

Maybe a run with stand up transformers and blank control panel? I'm looking for one like that with no success

Tazin
Senior Member
Posts: 719
Joined: Fri Jan 19, 2007 8:54 pm

Re: 1969 Steel Chassis - Next Run?

Post by Tazin » Wed Jul 31, 2013 2:00 pm

I vote for the folded and spot welded corners....Only because I'm a purist when it comes to reproduction parts.

ValveStorm
Supporting Advertiser
Posts: 249
Joined: Wed Mar 16, 2011 5:31 am
Just the numbers in order: 7
Contact:

Re: 1969 Steel Chassis - Next Run?

Post by ValveStorm » Wed Jul 31, 2013 2:29 pm

What about the finish? Gold or clear?
ValveStorm.comParts, parts parts!

User avatar
neikeel
Senior Member
Posts: 7063
Joined: Tue Dec 06, 2005 8:31 am
Location: Suffolk, England

Re: 1969 Steel Chassis - Next Run?

Post by neikeel » Wed Jul 31, 2013 4:43 pm

ValveStorm wrote:What about the finish? Gold or clear?
Dull non-passivated zinc................. :wink:
Neil

Tazin
Senior Member
Posts: 719
Joined: Fri Jan 19, 2007 8:54 pm

Re: 1969 Steel Chassis - Next Run?

Post by Tazin » Wed Jul 31, 2013 5:54 pm

If I had to choose between the yellow or clear/blue passivate; I'd go with the clear/blue. The yellow is just too bold looking. A dull non-paasivated zinc coating might be ideal, but I don't know if the plater can guarantee consistant results....You don't want to end up with some bright zinc coated chassis.

User avatar
YMI5150?
Senior Member
Posts: 982
Joined: Tue Feb 02, 2010 3:38 pm
Just the numbers in order: 13492
Location: Los Gatos, CA
Contact:

Re: 1969 Steel Chassis - Next Run?

Post by YMI5150? » Wed Jul 31, 2013 7:33 pm

If you can figure out a way to relic the chassis finish, that would sell like hot cakes.

User avatar
JimiJames
Senior Member
Posts: 3536
Joined: Fri Dec 23, 2005 6:32 pm
Just the numbers in order: 13492
Location: Chicago
Contact:

Re: 1969 Steel Chassis - Next Run?

Post by JimiJames » Wed Jul 31, 2013 8:53 pm

Would muriatic or hydrochloric acid/water mix work for etching.
What do the pickup manufacturers do to age their covers ?
Or guitar companies with their hardware ?
IDK :what:
RIP Mark Abrahamian-rockstah -classmate/roommate
RIP Ben Wise -StuntDouble- comrade-in-arms

__________________________________________
Build'sClip'sVid's

ValveStorm
Supporting Advertiser
Posts: 249
Joined: Wed Mar 16, 2011 5:31 am
Just the numbers in order: 7
Contact:

Re: 1969 Steel Chassis - Next Run?

Post by ValveStorm » Thu Aug 01, 2013 7:10 am

I will defer to George as to what finishes are available, but please keep the ideas coming.
I have seen talk about hours(days actually) in "salt spray" chambers as a means of comparing the effectiveness of finishes. Spraying with salt water (possibly with periods of drying in between)? You could just strap the chassis to the bumper of your truck for the winter? :lol:
ValveStorm.comParts, parts parts!

Tazin
Senior Member
Posts: 719
Joined: Fri Jan 19, 2007 8:54 pm

Re: 1969 Steel Chassis - Next Run?

Post by Tazin » Thu Aug 01, 2013 10:04 am

Perhaps a 4% thru 10% Muriatic acid solution might help dull/oxidize the plating. Unfortunately, each time you add a process to the chassis construction you increase the cost.

I just looked at a bunch of '69 amps (maybe 75 or so) and here's my conclusion.
Of the 60 plexi panel 1969's the majority seem to either have a clear/blue appearance or no appearent passivate at all (no visable hue or rainbow effect). This is going by the underside of the top of the chassis. The top of the chassis tends to be severely oxidized which makes picking out the passivate difficult. I will mention though that the typical zinc chromate (yellowish-gold) filter cap clamps yield a stark contrast in color compared to the top of the chassis, as does the output transformer mounting bracket to a lesser degree.
It looks like you see more of the yellow passivate chassis's as you progress in to the metal panel '69's....Maybe somewhere around August - September you see the more yellow colored chassis come into play.

Post Reply