djangodeadman
Joined: Jan 25, 2007
Posts: 1564
Brighton UK
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Posted on May 07 2012 02:22 AM
I have a reissue rverb tank from around 1995. Never had any problems with it until soundcheck at a gig last night. It comes on, all the valves are glowing and sound passes through ok, but no reverb. I can get some splash by hitting it, but the guitar remains stubbornly dry.
Fortunately I have a Boss FRV1, so was able to do the gig with no problems. I also know a good tech, so am sure I can get the tank fixed with little problem, except that I am in the studio recording next weekend and I doubt he's going to be able to fix it before then.
Any ideas?
— Los Fantasticos
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SanchoPansen
Joined: Jan 04, 2011
Posts: 1588
Berlin L-Berg
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Posted on May 07 2012 02:37 AM
Got a replacement pan? I would try this first. Plus check the RCA cables, just to be sure.
— The Hicadoolas
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djangodeadman
Joined: Jan 25, 2007
Posts: 1564
Brighton UK
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Posted on May 07 2012 02:51 AM
I might see if I can rig it up to the pan in my Twin Reverb. Might tell me something.
— Los Fantasticos
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SanchoPansen
Joined: Jan 04, 2011
Posts: 1588
Berlin L-Berg
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Posted on May 07 2012 02:57 AM
Check the specs of the pan before swapping them!
DIGIT #1 - REVERB TYPE
8 = short tank, three springs
4 = long tank, two springs
9 = long tank, three springs
DIGIT #2 - INPUT IMPEDANCE
A = 8 Ohm
B = 150 Ohm
C = 200 Ohm
D = 250 Ohm
E = 600 Ohm
F = 1475 Ohm
DIGIT #3 - OUTPUT IMPEDANCE
A = 500 Ohm
B = 2250 Ohm
C = 10000 Ohm
DIGIT #4 - DECAY TIME
1 = Short (1.2 to 2.0 sec)
2 = Medium (1.75 to 3.0 sec)
3 = Long (2.75 to 4.0 sec)
DIGIT #5 - CONNECTORS
A = Input Grounded / Output Grounded
B = Input Grounded / Output Insulated
C = Input Insulated / Output Grounded
D = Input Insulated / Output Insulated
E = No Outer Channel
DIGIT #6 - LOCKING DEVICES
1 = No Lock
DIGIT #7 - MOUNTING PLANE
A = Horizontal Open Side Up
B = Horizontal Open Side Down
C = Vertical Connectors Up
D = Vertical Connectors Down
E = On End Input Up
F = On End Output Up
Don't mess with #2, #3 and #5!
— The Hicadoolas
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djangodeadman
Joined: Jan 25, 2007
Posts: 1564
Brighton UK
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Posted on May 07 2012 03:36 AM
Hooking up the pan from the Twin Reverb mae no difference to the fault. Neither did swapping out the 12AT7 and the 7025 valves. I don't have a 6L6 or 6K6 to try.
I think that exhausts what I can try, so off to the tech it will have to go.
Cheers for the tips.
— Los Fantasticos
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SanchoPansen
Joined: Jan 04, 2011
Posts: 1588
Berlin L-Berg
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Posted on May 07 2012 08:52 AM
Yep, that's all you can do as a player.
Best luck! I've been through a lot of trouble with my RI units...
— The Hicadoolas
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djangodeadman
Joined: Jan 25, 2007
Posts: 1564
Brighton UK
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Posted on May 08 2012 01:46 AM
I've been amazingly lucky with mine; not a single problem in 16 years until now.
I've managed to find a replacemnet and will get this one fixed, so should always have one in working order from now on.
— Los Fantasticos
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tubeswell
Joined: Sep 24, 2011
Posts: 1424
Wellington, NZ
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Posted on May 08 2012 03:37 AM
djangodeadman wrote:
I've managed to find a replacemnet and will get this one fixed, so should always have one in working order from now on.
Well that's good, but its better to have two in working order
— He who dies with the most tubes... wins
Surf Daddies
Last edited: May 08, 2012 03:38:00
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djangodeadman
Joined: Jan 25, 2007
Posts: 1564
Brighton UK
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Posted on May 08 2012 04:16 AM
tubeswell wrote:
djangodeadman wrote:
I've managed to find a replacemnet and will get this one fixed, so should always have one in working order from now on.
Well that's good, but its better to have two in working order
That, of course, is my intention. I am hopeful, though, that they won't both go down at the same time! Maybe it's foolish of me to assume that.
— Los Fantasticos
Last edited: May 08, 2012 04:17:10
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peterbright
Joined: Feb 10, 2012
Posts: 233
Near the Swamp In Louisiana
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Posted on May 08 2012 08:41 AM
I have spare tubes and pans ...but it could always be something else.
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djangodeadman
Joined: Jan 25, 2007
Posts: 1564
Brighton UK
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Posted on May 08 2012 03:07 PM
peterbright wrote:
I have spare tubes and pans ...but it could always be something else.
Pretty sure it is. It's with the tech now, anyway.
— Los Fantasticos
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