5 old reverb tanks for $25. I haven't contacted the seller, so I don't know if they work. I've never messed with a real spring reverb before and don't know much about them. It would be fun to build a standalone reverb though.
http://portland.craigslist.org/mlt/msg/4561298656.html
Those with the brackets are definitely Hammond organ reverb tanks from spinet models, Gibbs manufacture, and it looks like there might be two there that are later ones from a T series organ they will be Accutronics, the gold anodized finished ones. I'd guess they are all from Hammonds. They are all gonna be 2 spring. I can check the numbers on my tanks a little later to see if I can grab the impedances, if you like.
Thanks Tim. Would these be worth the $25? My thinking would be that if there was a good one in the lot, it could be worth the price.
For my money, I'd just spend it on the exact tank I needed for the project.
Quote from: jubal81 on July 11, 2014, 02:36:42 PM
For my money, I'd just spend it on the exact tank I needed for the project.
And not having a project in mind, I should probably stay away. I can see myself a year from now with a bag full of reverbs sitting in the corner.
The code on the Accutronics tank I have from a Hammond T-233 is 4BB2B3C
So that means:
4: Long Tanks 2 spring
B: 150 ohm input
B: 2250 ohm output
2: Medium Decay
B: Input Grounded, Output Insulated
3: Spring Lock for transport
C: Vertical mount, jacks up
The Hammond code for the tank is 1122, and I think all the Spinets used that part number.
What this means is the output is the same as you'd find on a "'63 Fender Reverb" unit, but the input is 150 ohms instead of 8 ohms. I think using the signal limiter circuit in the Hammond M-100 schematic would make the tank adaptable to the classic Fender circuit as the reverb tank is driven off the mains speakers which are 8 ohm.
Schematic:
(http://www.captain-foldback.com/Hammond_sub/schematics/AO35.JPG)