Lone Star Classic 50/10w tube rectifier sound dies out

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threadedtime
Bottle Rocket
Posts: 2
Joined: Sat Sep 12, 2020 6:48 pm

Lone Star Classic 50/10w tube rectifier sound dies out

Post by threadedtime » Sat Sep 12, 2020 6:55 pm

I just picked up a used LSC 2x12 at GC. It was shipped to me from another location. Tubes were removed for safety, I reinstalled as per the instructions. I fired it up....100w Silicon Diode mode works as does the 50w Silicon Diode. When I switched it to Tube Rectifier, the sound died out...it got gainy and dropped in volume till it quickly faded out. This also happens on Silicon Diode 10w mode as well...WTH is going on? this is my first Mesa and I have dreamed of having a Lone Star Classic 2x12....incredibly disappointed. Any ideas?

Mark

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Eevil
Mark III
Posts: 178
Joined: Tue Sep 13, 2011 4:04 am
Location: Finland

Re: Lone Star Classic 50/10w tube rectifier sound dies out

Post by Eevil » Sun Sep 13, 2020 12:26 am

Hi and congrats on your new amp :)

That sounds to me like the tube rectifier/s are dead.. I don’t recall the tube type in that model but replacing those buggers with new tubes would probably help.

If you read the manual (can be found from Mesa website) there will be the correct type and if I recall correctly the 10W mode uses always tube rectifier.

Cheers
Current:
- Bogner XTC
- Electra-Dyne 1x12 23” combo
- Studio preamp
- 4x12 Stiletto slanted

Gone:
- Mark III 60w/grx
- Diezel D-Moll
- Express 5:25
- Roadster head
- Triaxis / 2:50
- Stiletto Deuce Stage 1&2
- CAA OD-50
- Mark V
- 2x12 Recto Horiz.

threadedtime
Bottle Rocket
Posts: 2
Joined: Sat Sep 12, 2020 6:48 pm

Re: Lone Star Classic 50/10w tube rectifier sound dies out

Post by threadedtime » Sun Sep 13, 2020 9:42 pm

Thanks! I ordered a Mesa 5U4GB from Sweetwater...$30... I will let you know how it works out.

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