Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: daveyajd on March 06, 2018, 12:05:32 am

Title: Matchless Lightning chassis
Post by: daveyajd on March 06, 2018, 12:05:32 am

I have the bug again so this time I am planning a build for a Matchless Lightning. I have looked at Sluckeys November/Lightning conversion. I think I am going to use a Hammond PT with something between 250-0-250 and 290-0-290, not sure on the OT yet. Everything else seems pretty straightforward but what size chassis works best for this build? I like to use stand up iron so I can save room inside the chassis.




Aaron

Title: Re: Matchless Lightning chassis
Post by: jly56 on March 06, 2018, 02:34:22 am

Hi...  Check out user  zachmdhunter on sleaze-bay.  He has a bunch of different punched and blank chassis.  Heavy duty steel construction and always on size quoted.  Personally, I would put it in a brownface blank chassis and drill all of your own holes.  That's what I did for my SLuckey AC-15.  Yeah can see it a little in my post about the build.  I get the brownface' in quantity cause I build a couple different amps using them.


Good luck

Title: Re: Matchless Lightning chassis
Post by: sluckey on March 06, 2018, 06:12:05 am

My chassis is 20" x 6" x 2-1/2". You can have it and the unpopulated boards for $30 plus actual shipping if interested.

Title: Re: Matchless Lightning chassis
Post by: daveyajd on March 06, 2018, 09:11:02 pm

Thanks for the replies. Dang I was really hoping to use a shorter chassis after my TOS builds. 😉 SLuckey, is the chassis you have an the actual one from your build? Drilled out already?


Aaron

Title: Re: Matchless Lightning chassis
Post by: sluckey on March 06, 2018, 10:04:44 pm

The chassis and boards are the actual ones you see in the web pics of my Lightning. My Lightning became a donor for my AC-15 amp.

WYSIWYG...

Title: Re: Matchless Lightning chassis
Post by: VMS on March 07, 2018, 03:01:25 am

You could use that blank aluminum chassis Doug sells. I think it's basically a blank 18 Watt chassis.

Title: Re: Matchless Lightning chassis
Post by: daveyajd on March 09, 2018, 12:44:26 am

Thanks sluckey. I wish I had those kind of "spare parts" laying around. Drilling the chassis and working the layout is part of the adventure for me. What size choke did you use for this amp?


Aaron

Title: Re: Matchless Lightning chassis
Post by: sluckey on March 09, 2018, 06:43:49 am

Hammond 193B
12H @ 100ma
DCR = 155Ω

Title: Re: Matchless Lightning chassis
Post by: MFowler on March 09, 2018, 09:02:00 am

Nice chassis and board Slucky.


I built the Matchless Lightning (non reverb) into a Fender Blues Jr, nice and small 1-12" cabinet.