Teiscofan wrote:

I imagine that the metal enclodure is just for the circuit board?
Is there a need to line the entire box like the cavity on a guitar? I have never seen the inside of a reverb unit........

Yes, the circuit board need some shielding to minimize the hum. The circuit is quite high impedance (just like the 6G15) and can pickup noise/hum. I dont think shielding the entire box would improve anything.

Last edited: Jul 15, 2014 01:06:03

This looks like one cool cheap solution

The cheapest shielding solution is the one Fender used, a piece of foil-lined cardboard attached to the bottom of the pan. I use a leftover pieces of foam board, but any heavy-duty piece of cardboard will do. Then I spray it with photo mount adhesive and lay a piece of foil on it. The cardboard is held to the pan with short sheet metal screws.

If it ain't broke, fix it until it is.

I'm VERY excited to hear this in person!

Bjorn, are these very early kits numbered in some way? It would be super cool for those that are jumping on this to know that they have kit #1,2,3,etc.

More to come soon....

Insect Surfers
The Tikiyaki Orchestra
The Scimitars
Lords Of Atlantis
Fiberglass Jungle - Surf Radio

JObeast wrote:

That aluminum tape used for water heater ducts is really handy, with very sticky backing.
In the photos posted above by Dread, what is that channel material?

Looks like steel studs for wall construction. They're usually used for commercial construction. Not sure if the mega chains carry them.

I bet a bit of old downpipe would suffice, & could be snipped with tin shears! Attached to wall of the toolbox enclosure with sheet metal screws. Real low-rent style!

Surf_Skater wrote:

JObeast wrote:

That aluminum tape used for water heater ducts is really handy, with very sticky backing.
In the photos posted above by Dread, what is that channel material?

Looks like steel studs for wall construction. They're usually used for commercial construction. Not sure if the mega chains carry them.

Squink Out!

I'm inteding to get a Surfy Bear FET cirquit board as it's much more portable than the RI unit I have. I'm thinking of placing the PCB in a normal pedal casing and carry the spring pan separately. Would the pedal enclosure provide enough shielding to the PCB? Do I really need to shield the pan? The one in my RI unit is unshielded and I haven't had any hum issues yet.

ALSO! Congratulations Bjoish, for this great idea you had of replacing the tubes with FETs in the fender reverb unit design! I've heard the FET overdrive pedals sound really close to real tube amps. I wonder how come nobody thought of what you did earlier, since so many huge effects companies were always on the hunt for the best spring reverb pedal. I haven't played it yet, but I expect it to sound much better than the Boss FRV-1, the Danelectro Spring King and the Catalinbread Topanga.

https://zakandthekrakens.bandcamp.com/
https://www.dirtyfuse.com

Last edited: Jul 17, 2014 01:29:57

RaistMagus wrote:

I'm inteding to get a Surfy Bear FET cirquit board as it's much more portable than the RI unit I have. I'm thinking of placing the PCB in a normal pedal casing and carry the spring pan separately. Would the pedal enclosure provide enough shielding to the PCB? Do I really need to shield the pan? The one in my RI unit is unshielded and I haven't had any hum issues yet.

ALSO! Congratulations Bjoish, for this great idea you had of replacing the tubes with FETs in the fender reverb unit design! I've heard the FET overdrive pedals sound really close to real tube amps. I wonder how come nobody thought of what you did earlier, since so many huge effects companies were always on the hunt for the best spring reverb pedal. I haven't played it yet, but I expect it to sound much better than the Boss FRV-1, the Danelectro Spring King and the Catalinbread Topanga.

Thanks for the kind words !
I don't expect to get rich but its a fun project

I think your idea will work fine.
As you can see above DreadInBabylon seems to try the same thing.

Teiscofan wrote:

As Raistmagus asked and enquiring minds want to know.......Do we really need to shield the pan?

I have not shielded my pans, have not seen a need for it.
In noisy environments maybe, but normally not.

Hi Crumble.

I recommend that you connect the DC jack to your power supply and then measure the voltage on the pins on the jack. This way you can make sure you get the polarity right.

The MOSFETs can stand very high temperatures but I recommend some ventilation. This way you can extend the life of the components.