Grundig SO 240 U/S

[Luke_2019]

i have this console that I don’t know what to do with. I tried getting it fixed (I’ll post everything from the shop) and no luck. I’m thinking of retrofitting it, but I don’t know what components I should put in it.

From the shop

Here is what the shop tried to fix on it.

1- Cut out wood needed to make space for new power switch. Installed switch and additional wiring. (several hours)
2- Removed chassis and repaired selector/band-switch assembly. (many hours)
3- Located best replacement record changer for closest match to existing hole, but will still need to customize cabinet to fit new the changer. (Did not alter cabinet yet at this point.)
4- Located and replaced needed components in power supply. Sub parts working correctly. (hours)

NOW THAT WE CAN POWER UP THE CHASSIS:

5- One channel of stereo amp working, one has no sound.
6- FM tuner has no sound.
7- AM works intermittently, but clutch to tune AM is not working, needs modification, because these mechanical parts are not available.
8- AM ferrite antenna switch is bad, possibly can repair, but shaft to control the switch seems to be like "pot metal" and is failing. Can make switch permanently "ON" which is normal position.
9- Wiring to speakers needs work. Up to now, we have been using our test speakers attached to chassis on service bench to work on the main chassis.

It seems like every problem imaginable on these Grundig units is present in this one unit. When we estimated the repair, since we had no power or operation at all to begin with, we quoted on the repairs we could detect and assumed the rest of the unit would be in reasonable shape. This is a list of at least 9 major repairs needed, not 1 or 2, which would be normal.

We have invested many hours to get to this point. Our normal billing is $80 per hour plus parts.

Seeing what remains to be done, we choose not to continue, we will take our loss to this point, but cannot see any reason to continue investing time and parts when we are losing money.


Thanks

 

[RWood]

I had that model, too, and had to recall the old song lyric, “you gotta know when to fold ‘em”.

I had even made a brass part to replace the tuning clutch.... but it was not enough. Even the cabinet, which has a stylish appearance, was particle board and damages easily.

I kept the transformers and the tubes, purged the rest. It took a while for me to get to that point, but I put it on the curb and it was gone in a few hours. A very good feeling, mostly because I no longer had to spend time wondering what to do with it.

 

[s-petersen]

Beautiful cabinet! ,maybe keep a lookout for a similar chassis on the auction site, most of those are a similar size, and you could ask the seller what the dimensions of their faceplate is.
The crumbling pot metal is a common problem.
I wonder if it could be 3D printed?

 

[Luke_2019]

I had that model, too, and had to recall the old song lyric, “you gotta know when to fold ‘em”.

I had even made a brass part to replace the tuning clutch.... but it was not enough. Even the cabinet, which has a stylish appearance, was particle board and damages easily.

I kept the transformers and the tubes, purged the rest. It took a while for me to get to that point, but I put it on the curb and it was gone in a few hours. A very good feeling, mostly because I no longer had to spend time wondering what to do with it.