reverb tank repair

[dragonworks]

I have an oddball reverb tank. Anyone know anyplace it can be repaired, you know, those tiny wires thick as a hair?

[kagliostro]

Sometime ago I repaired a relay coil with soldering iron and tin

but it wasn't very easy

may be you can try with silver paint

http://it.rs-online.com/web/p/adesivi-composti-per-circuito-stampato/1015621/

K

[stratele52]

Could be cheaper to buy a new one $30 than pay for a repair.

Keep this old one , practice soldering and try to repair it by yourself.

Silver paint is conductive but won't hold the wire if broken .Need soldering

[tubeswell]

I've heard reports of some guys 'rewinding' the transducer coils successfully (which consisted of removing part of the winding to the point where they found DC continuity again) - never tried it myself. Imagine it'd be fiddly.

[stratele52]

dragonwork , can you send us picture of your broken tank 's wire

[Zipslack]

If you've ever tried to repair a guitar pickup with a break, this will be even worse.  The really great thing about trying to solder such small wire - you need to remove some of the varnish coating without breaking the wire, you may melt/burn the wire while trying to solder it, and it usually is a cold-joint or easily breaks loose after you think you have a good joint.  At least, that has been my experience with trying to solder really small stuff like that by hand.  Yeah, might be interesting to try, but much easier and less headaches to get a replacement.

[dragonworks]

As stated, it is an oddball reverb tank, there is no replacement, not anything that will fit anyway. As for soldering it myself, I have a hard enough time with "real" wires. There must be some reason those wires are so thin?

[stratele52]

As stated, it is an oddball reverb tank, there is no replacement, not anything that will fit anyway. As for soldering it myself, I have a hard enough time with "real" wires. There must be some reason those wires are so thin?

To keep everything small and keep cost low.

[daven]

have you tried contacting the old accutronics folks?  they might be able to come up with an equivalent replacement transducer:

http://www.sepigroup.com/reverb.html

[stratele52]

Accutronic are avalaible at tubesandmore.com    ( Antique Electronics )

[HotBluePlates]

As stated, it is an oddball reverb tank, there is no replacement, not anything that will fit anyway. As for soldering it myself, I have a hard enough time with "real" wires. There must be some reason those wires are so thin?

To keep everything small and keep cost low.

More to the point, to have a small enough wire to permit enough turns to get enough mA-turns in a small space. Small, thin wire also keeps mass low on a device that's all about turning electrical energy into mechanical movement.

[dragonworks]

this reverb tank is about six inches long, four inches wide and an inch deep, three spring, hard wired, no rca plugs.

[daven]

do you know which transducer is bad?  i.e. if it still SPROINGS! when you shake the amp, then the output one works OK.  I imagine that other manufacturers used similar impedance transducers as the accutronics one, that's why I suggested contacting the SEPI folks to see if they still have a matching or similar replacement part in their leftover parts.  the accutronics part numbers indicate the available impedances:

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

the circuit it's used in will dictate what's needed.  so, for example, if it has a transformer driving the input like the fender amps, it's probably 8 ohm.

[stratele52]

this reverb tank is about six inches long, four inches wide and an inch deep, three spring, hard wired, no rca plugs.

Can I understand tank it not use on any amp now ? With no RCA connector , probably a low budget no name tank . Could work fine if it fixed.
The amp circuit will tell impedance.

[dragonworks]

I took the original tank out. It is shot.

[dragonworks]

The reverb tank is from a Teisco King tube stereo preamp.

[tubeswell]

So you're still determined to try and fix it after 9 years? Big ups for your staying power.

[dragonworks]

I get back to it now and then lol.

[thetragichero]

what are the exact dimensions of the tank along with the DCR of the input and output? mod tanks recently came out with small tanks that i was finally able to replace the one in an acoustic 125 that had a non-working output transducer. i'm assuming the driver/recovery on this are solid state so we should be able to find a tank that's "close enough for punk rock"