Just finished my Mini-OTS with good working simple build-in-reverb
In addition to my HRM50, which has it's place in our rehearsalroom permanently, I ordered a Lunchbox-OTS
as a bedroom-amp (it's placed in my office actually).
The amp itself was built by ceriatone.
The cabinet is my work, built from simple pinewood, stained in mahagony-red.
The finish is glossy clear lacquer, normally used for boats.
I really wanted a build-in reverb, so I just put a "tc hall of fame" on top of the chassis (held
by magnets - so it can easily be removed).
To get rid of the external power supply I chose the following solution:
I ordered a voltage converter (12V-9V, usually applied to cars) and solded it to 12V and ground
inside the amp. The 9V output of the converter was connected to a low-voltage-jack I installed in
the chassis.
To make the reverb-control accessible, I mounted the frontgrill with magnets. A lug at the top of
the grill allows to pull it out easily.
The tube-protection at the rearside is welded 5mm round-bar steel.
Well, it sounds great with a single g12-65.
Especially the implementation of the reverb unit without external power-supply (which
was nothing but an experiment at the beginning), was a success.
For anyone interested, I attached some pictures to make things clearer.
Andreas







