Need to replace the Treble Pull shift Knob 1985 Mark II C+

[RocketRick]

Opps..!

Guess I need to contact Mesa and get a new one and install it. Don't think using epoxy on the shaft will hold.

Don't trust any Tech here in ANC to do it.

I did that tube mod to accept diff tubes sos I think I can do it. I hope. :roll:

Any experience with it?

Ideas?

Rick

 

[Jameson]

I had exactly the same issue (broken shaft) with exactly the same pot (Treble push-pull) on my Mark III - epoxy worked well for me, no issues so far with the repaired pot.

One tip: don't try to use epoxy glue on the pot in place - take out the chassis from the shell, remove the pot, dismantle it so you could have the access to the both parts of the broken shaft, and then glue them together. Leave for 72 hours and then put everything back in place (insert the pot, solder all the connections).

If you try to use epoxy without removing the pot, there is a chance that the excessive drops of epoxy could glue the shaft to the outside metal parts - and the pot won't rotate anymore

Hope this helps.

 

[RocketRick]

Thanks BR...frankly I didn't think that solution wld last.

Mesa had two available. One they built exactly like the orig($15) and a later one for abt $5.The $5 will work just fine but doesn't match the orig. I ordered the $15 one to match.

Reckon I'll repair the old one and place in back of amp and install the new one.

Oh..shipping was as much as the dang knob/switch was. Go figure...

Rick

 

[Jameson]

Then you will have a spare knob as a bonus It's good they still have the replacement parts for old amps, somewhere on this board I read that they only offer now a different push-pull pot (the one that is used as a main master volume in Mark IV), so it must have been that version for $5...

 

[RocketRick]

J,

Mesa is pretty helpful over the years.

Are you in Russia? If so send me some vodka ha!.

Oh...for grins and giggles here's some of the toys I'm messing with since it's -10deg F here...Brrr..

rick

 

[Jameson]

Yeah, I'm in St. Petersburg... and I live in 10 minutes drive from the Winged =C= factory, here it is

That's the reason why I repaired my knob rather than ordered a new one - shipping something across the ocean could last weeks and costs many $$$s.

Nice Marshalls BTW we have roughly the same temperature here now (about -15F at nights, day is warmer - about 0-5F)

 

[gts]

Duplicate thread! Watch out you might get banned for spamming - and with no warning... :shock: :lol:

But seriously go to the the other thread and you can delete the duplicate (as long as no one else has replied in the thread)
There will be a small "X" in the bottom right of your post in the thread.
Click it and the post and thread will be deleted.

 

[RocketRick]

gts,

I think I may have done that accidentally. I cant rem. I stink I did it in the past once.

If I did, i am sorry.

I searched for my posts for the duplicate thread and could not find it. I guess a moderator must have deleted it already.

Thanks for the head up.

Have a prosperous and fun 2012 all.

rick

 

[gts]

hey Rick no worries I was just joking around.

 

[RocketRick]

Well I fell for it!

 

[gts]

Btw call Mesa.
They may have a replacement pot for your IIC+.