Fender Sidekick Reverb 35 - broken spring

[musashi]

Hello,
I'm fixing a Fender Sidekick Reverb 35. It has one broken spring-electrode connection in the tank, so I've to replace it.
What Accutronics models (or other easly available manufacturers?) can I use with best results?
The only data I have are on the tank:

720002
SR-01542CE
P/N 025269

Here is the schematic
Sidekick 15, 25R, 35R, 65R.pdf

and a photo of the broken tank


If I measure with my ohmmer I have:
IN - 20ohm
OUT - 230ohm

Thanks

[musashi]

Ok, I've found that it has input insulated and output grounded..

My DVOM says
INPUT - 12ohm (not 20 as before)
OUTPUT - 230ohm

so looking at this:
http://www.accutronicsreverb.com/des...5/impchart.jpg

Can I use a 150input 2250output? anyone?

Isn't there a chart for Fender replacement parts with characteristics of the parts?

From size it's a Type 1, looking on the net I see it's a lot less available than the Type 4.. Am I wrong?

[Enzo]

Your old pan is a short one, I don't know that your model amp has room for a full length pan. Type 1 pans are tiny. Type 4 pans are ful length. See if your amp has room for a type 4, I tend to doubt it. Rather than a type 1, consider a type 8. That is the size in a lot of small amps, like the Fender Blues Junior.

You cannot measure the impedance of the pan, but you can and did measure the DC resistance. You have already looked up the Accutronics site and found the resistance chart. All reverb pans are similar, meaning if your resistance values resemble those for a certain model, then that model will probably work just fine in your amp.

All pans are going to have about the same output impedance. Yes, the 150 ohm one would be my choice.

Look up an 8BBxxxx pan from a supplier. Or if you have room, then a 4BBxxxx

[musashi]

Thanks for th reply Enzo (are you Italian?)

Belton (there is only this mail on the accutronics site) says that I need a 1AB2C1B. But this is a 8ohm input tank. I don't know what to think...

I've mailed back with my measurements and I'm waiting for an answer (the last one took about 8 days), but maybe is VOM fault.

Suggestions?

[52 Bill]

You cannot measure the impedance of the pan, but you can and did measure the DC resistance. You have already looked up the Accutronics site and found the resistance chart. All reverb pans are similar, meaning if your resistance values resemble those for a certain model, then that model will probably work just fine in your amp.

There is a difference between resistance and impedance. By taking a reading with your ohmmeter you are reading dc resistance not the impedance, which is what the 8 ohm figure relates to.

As for your meter accuracy, touch the two leads together. What resistance reading do you get? If it's not exactly zero you will have to subtract that value from any of the readings that you are taking.

[musashi]

Yes, resistance and impedance are not the same thing...
But if look at my previous post I've measured 12ohm DC RESISTANCE at the input..
The accutronics chart show a 0.81 DC RESISTANCE for an 8ohm IMPEDANCE and a 26ohm DC RESISTANCE for a 150ohm IMPEDANCE
So I thought I've to use the 150ohm one.. but for Belton the 1AB2C1B is the one, I've mailed back my measurements and I'm still waiting for an answer..

[52 Bill]

And like I asked, when you touch the two meter leads together what ohm reading do you get?

[musashi]

I get 1ohm, so 12-1 = 11ohm

[Enzo]

It is not critical. The DC resistance varies with the size and length of the wire. If one company uses thinner wire, the resistance will be higher.

A 1AB2C1B is going to have that very low impedance input, not the 150 ohms or so you are seeking. Are you sure a 1BB2C1B isn;t more like what you want?

[musashi]

Yes, as I've said before 1BB2C1B should be the one more similar to my measurments, but from Belton suggests to use 1AB2C1B... This is why I've mailed back withmy datas, but I've not receved any replies yet