efinque
Well-known member
- Joined
- Jan 3, 2018
- Messages
- 381
Hello,
I recently acquired an Eko Tiger vintage electric organ from the 70's. It had a broken fuse but replacing it made the unit work for a while, after that it let some smoke out and now there's nothing but a loud hum coming from the speakers. The lamp also burnt but the PCBs seem fine so I think it might be the transformer.
Does anyone have any experience repairing these?
Thanks in advance,
-ef
EDIT : for the record I've once fixed a vintage Walton organ but all it had was a broken power cord, this may require some additional work which is why I'm asking
EDIT 2 : and it's not that the sound is particularly great, it's in fact very thin but it looks very nice and could be used in some recordings for a vintage sound but I don't have much time or resources to exclusively focus on fixing it
EDIT 3 : I already tried powering it with a wall wart, the hum reduced a bit but no sound from the keys (the hum is present in the hp/line out too).. there's a small component (in the PSU) underneath a huge capacitor that looks like a diode which could be damaged and the hum could be a short in the speaker PSU (it has 2 power supplies.. design-wise it's fully modular, the oscillators, tone etc) I'll upload some close shots of the internals once I get around to it. The PSU seems to accept a wide variety of voltages by changing the fuse position which could've been my mistake, the thing eats 0,5A fuses but I put a 0,63A in which could've fried the trafo, I also tried a number of other fuses with no luck
EDIT 4 : I've been also looking for suitable Hammond transformers but they're pricey, somewhere around 100e and upwards. This unit is from '72, model n. 3000
EDIT 5 :
Here's the part I believe is broken (behind the vertical capacitor)
I recently acquired an Eko Tiger vintage electric organ from the 70's. It had a broken fuse but replacing it made the unit work for a while, after that it let some smoke out and now there's nothing but a loud hum coming from the speakers. The lamp also burnt but the PCBs seem fine so I think it might be the transformer.
Does anyone have any experience repairing these?
Thanks in advance,
-ef
EDIT : for the record I've once fixed a vintage Walton organ but all it had was a broken power cord, this may require some additional work which is why I'm asking
EDIT 2 : and it's not that the sound is particularly great, it's in fact very thin but it looks very nice and could be used in some recordings for a vintage sound but I don't have much time or resources to exclusively focus on fixing it
EDIT 3 : I already tried powering it with a wall wart, the hum reduced a bit but no sound from the keys (the hum is present in the hp/line out too).. there's a small component (in the PSU) underneath a huge capacitor that looks like a diode which could be damaged and the hum could be a short in the speaker PSU (it has 2 power supplies.. design-wise it's fully modular, the oscillators, tone etc) I'll upload some close shots of the internals once I get around to it. The PSU seems to accept a wide variety of voltages by changing the fuse position which could've been my mistake, the thing eats 0,5A fuses but I put a 0,63A in which could've fried the trafo, I also tried a number of other fuses with no luck
EDIT 4 : I've been also looking for suitable Hammond transformers but they're pricey, somewhere around 100e and upwards. This unit is from '72, model n. 3000
EDIT 5 :