Replacement Reverb Tank

[tod]

The reverb tank has packed in on my Tech21 Trademark 10 - I have seen US
sites selling replacements but not many UK ones - just Torres
(http://freespace.virgin.net/vyse.co/reverb_parts.htm) would anyone know if
either of the ones they list are suitable and if it is a simple job?

If it's too difficult/expensive I'm happy to pick up a s/h reverb pedal and
stick it in the loop.

Cheers,

Tim O'D

(btw I have contacted Tech21 and they suggested I speak to the UK
distributor about it (Rocky Road) but any e-mails to their published e-mail
address seem to get automatically forwarded to ***@hotmail.com (?!?) who
then reply to me saying that my e-mail did not contain anything relevant to
them. Odd.)

Thanks in advance,

Tim O'D

[mini]

Post by tod
The reverb tank has packed in on my Tech21 Trademark 10 - I have seen
US sites selling replacements but not many UK ones - just Torres
(http://freespace.virgin.net/vyse.co/reverb_parts.htm) would anyone
know if either of the ones they list are suitable and if it is a
simple job?
If it's too difficult/expensive I'm happy to pick up a s/h reverb
pedal and stick it in the loop.
Cheers,
Tim O'D
(btw I have contacted Tech21 and they suggested I speak to the UK
distributor about it (Rocky Road) but any e-mails to their published
e-mail address seem to get automatically forwarded to
did not contain anything relevant to them. Odd.)
Thanks in advance,
Tim O'D

Looking at Tech 21's webby Trademark 10 they say it's a 3 spring Accutronic
Tank.
You can find more info on those here: http://www.accutronicsreverb.com/

You would specifically want to check products and specifications.

I recommend you open up the combo and note the numbers on the tank since
those will give you data on model (it's probably a model 8) and the correct
values needed for input output placement (vertical/ horizontal) etc.

A few days ago I knew nothin' on the topic, but I raised a pretty similar
question here (Question - how to get more reverb on Marshall...) and got a
bunch of very good replies :)

I think you will find the connections is very simple probably just 2 phono
plugs - so replacenment is very easy.
Just keep a note on which is input/output.

If you are quite sure the tank is the problem you should check if the
connecter from output hums when reverb pot is turned up on the amp. The
input to the tank can probably be checked by feeding the signal into a
preamp or mixer.

Accutronics European distributor is her:
http://tubeampdoctor.shop-in-worms.net/

Don't know if you can find a UK distributor.

Mini

[Tim O'Donnell]

"mini" <***@removemsn.com> wrote in message news:c9a3kc$1npr$***@news.cybercity.dk...
<snip my stuff>

Post by mini
Looking at Tech 21's webby Trademark 10 they say it's a 3 spring Accutronic
Tank.
You can find more info on those here: http://www.accutronicsreverb.com/
You would specifically want to check products and specifications.
I recommend you open up the combo and note the numbers on the tank since
those will give you data on model (it's probably a model 8) and the correct
values needed for input output placement (vertical/ horizontal) etc.
A few days ago I knew nothin' on the topic, but I raised a pretty similar
question here (Question - how to get more reverb on Marshall...) and got a
bunch of very good replies :)
I think you will find the connections is very simple probably just 2 phono
plugs - so replacenment is very easy.
Just keep a note on which is input/output.
If you are quite sure the tank is the problem you should check if the
connecter from output hums when reverb pot is turned up on the amp. The
input to the tank can probably be checked by feeding the signal into a
preamp or mixer.
http://tubeampdoctor.shop-in-worms.net/
Don't know if you can find a UK distributor.
Mini

Whipped the tank out and sure enough it has accutronics stamped on it and
there are indeed 3 springs but there are no other indications as to the
exact model. I had a look at the European Distributors site - I'm quite
happy to order form them - prices are all around ?43 so hardly extortionate
but I can't be sure which of the many options to select.

I'll try Tech21 again,

thanks for your time,

Tim

[mini]

Post by Tim O'Donnell
Whipped the tank out and sure enough it has accutronics stamped on it
and there are indeed 3 springs but there are no other indications as
to the exact model. I had a look at the European Distributors site -
I'm quite happy to order form them - prices are all around ?43 so
hardly extortionate but I can't be sure which of the many options to
select.
I'll try Tech21 again,
thanks for your time,

My tank has a print saying 8DB2C1D which hold all the needed info. Actually
here is what mine boiled down to:

8 - It's an Accutronics type 8
D - input res. = 310 ohm
B - output res = 2575 ohm
2 - Decay - medium
C - Connectors = input insulated - output grounded
1 - no locking device
D - Vertical mounting

Your tank should have a number in the same format and the key to decode the
info is on this page:
http://www.accutronicsreverb.com/prodspec.htm

Mini

[tod]

Post by mini

Post by Tim O'Donnell
Whipped the tank out and sure enough it has accutronics stamped on it
and there are indeed 3 springs but there are no other indications as
to the exact model. I had a look at the European Distributors site -
I'm quite happy to order form them - prices are all around ?43 so
hardly extortionate but I can't be sure which of the many options to
select.
I'll try Tech21 again,
thanks for your time,

My tank has a print saying 8DB2C1D which hold all the needed info. Actually
8 - It's an Accutronics type 8
D - input res. = 310 ohm
B - output res = 2575 ohm
2 - Decay - medium
C - Connectors = input insulated - output grounded
1 - no locking device
D - Vertical mounting
Your tank should have a number in the same format and the key to decode the
http://www.accutronicsreverb.com/prodspec.htm
Mini

Yeah I'd read that page and was looking for just that - definately not
marked though other than the Accutronics name and two patent numbers -
nothing in the format given on the accutronics site :-(

[David R. Barlow]

I'm concerned....

before you go and order a new tank are you sure that its the tank itself
that is the problem? The tank is a very "mechanical" device - not a lot to
go wrong......

you can buy a reverb pedal on eBay for £70 wouldnt that be better?

Dave

[tod]

Post by David R. Barlow
I'm concerned....
before you go and order a new tank are you sure that its the tank itself
that is the problem? The tank is a very "mechanical" device - not a lot to
go wrong......
you can buy a reverb pedal on eBay for £70 wouldnt that be better?
Dave

I'm considering that (I've got the current ebay ones on my watch list to see
what they usually go for). I know the circuit from the red reverb tank plug
back to the amp is ok (buzzing sound when I touch my finger to it) - I may
grab a cheapo multimeter to see if there is anything going *to* the tank. As
you say there seems to be very little to go wrong with a reverb tank other
than maybe a dry solder joint - it was a disappointingly simple affair when
I looked at it once removed ;-)

If I can prove it is the tank then I probably will replace it - makes it
easier to move the amp on if funds are required in the future. If I can't
then rather than risk it I'll go the pedal route (although thinking about it
I have a Korg Pandora gathering dust somewhere - anyone know if that will
sit in the loop OK for fx only?)

Tim O'D

[Tony]

Hi,
Spring line reverb tanks are surprisingly fragile - there is a
transducer at the input to get the energy into the springs and a transducer
at the output to convert the energy from the springs back into an electrical
signal suitable to go back into the amp. It is generally these transducers
that 'go' - they are especially vulnerable to shocks.
This may not help much but at least explains that they do go wrong.
Alternatively either the driver amp (sends the signal to the tank) or the
recovery amp (reverb tanks attenuate the input signal by lots!) could ba at
fault,
Hope this helps
Tony

Post by tod

Post by David R. Barlow
I'm concerned....
before you go and order a new tank are you sure that its the tank itself
that is the problem? The tank is a very "mechanical" device - not a lot to
go wrong......
you can buy a reverb pedal on eBay for £70 wouldnt that be better?
Dave

I'm considering that (I've got the current ebay ones on my watch list to see
what they usually go for). I know the circuit from the red reverb tank plug
back to the amp is ok (buzzing sound when I touch my finger to it) - I may
grab a cheapo multimeter to see if there is anything going *to* the tank. As
you say there seems to be very little to go wrong with a reverb tank other
than maybe a dry solder joint - it was a disappointingly simple affair when
I looked at it once removed ;-)
If I can prove it is the tank then I probably will replace it - makes it
easier to move the amp on if funds are required in the future. If I can't
then rather than risk it I'll go the pedal route (although thinking about it
I have a Korg Pandora gathering dust somewhere - anyone know if that will
sit in the loop OK for fx only?)
Tim O'D

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[amp.doctor]

Post by tod
The reverb tank has packed in on my Tech21 Trademark 10 - I have seen US
sites selling replacements but not many UK ones - just Torres
(http://freespace.virgin.net/vyse.co/reverb_parts.htm) would anyone know if
either of the ones they list are suitable and if it is a simple job?
If it's too difficult/expensive I'm happy to pick up a s/h reverb pedal and
stick it in the loop.
Cheers,
Tim O'D
(btw I have contacted Tech21 and they suggested I speak to the UK
distributor about it (Rocky Road) but any e-mails to their published e-mail
then reply to me saying that my e-mail did not contain anything relevant to
them. Odd.)
Thanks in advance,
Tim O'D

Hi Tim, Try Antique Electronics in the USA. 21 dollars 95 for a three
spring. http://www.tubesandmore.com/

This link should take you straight to reverb tanks.
http://www.tubesandmore.com/new/scripts/silverware.exe/***@d:/dfs/elevclients/cemirror/ELEVATOR.FXP?PAGE=SUBCAT&SEARCH_TREE01=GTR_AMP_PARTS&SEARCH_TREE02=REVERBTANKS&SEARCH_TREE03=01ACCUTRONICS
Cheers
amp.doc