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phantom power on telefunken V78...when the dream comes tru
Old 10th May 2006
Gear Nut
๐ŸŽง 15 years
phantom power on telefunken V78...when the dream comes tru

hi everybody...
I just got (after long long research) a couple of marvellous Telefunken V78 plus rack...
I feel so blessed...
it's time now to install a good phantom power system and after long research it seems that a ramped power supply should help me to extend the life of the input transformers on the units..
I was planning to use a LM337HV (in conjunction with a 24+24 secondary transformer) but I haven't found a way of getting the 48V to ramp up from 0V to maximum in, let's say, 30 seconds or so...
does any of you have an idea or a schematic or a link?
any suggestion is MORE than welcome..
thank you very much!!!
Old 18th May 2006
Gear Guru
1 Review written
๐ŸŽง 15 years

I bought two V78's on eBay before I really knew what they were. They sounded great in AB tests against some modern heavy hitters. Due to lack of phantom, pads, and connections they were a pain to use, so I decided to give them a birthday. I sent them to HE StudiTechnik in Germany. They cleaned, tested, repaired and modified them and housed them in their own rack. Of course there is ramped 48. There are several other features which you do need and probably don't know it yet. There are also unique V78 problems which you probably don't know about also. Weird grounding for instance.
My job cost quite a bit overall. However I was very happy with the service. They were very careful, honest, and extremely well informed. Very patient and good to talk to about options etc.
I reckon you should give Andy there a call. They might accept your rack and do the rest of the work as they did for me. Highly Recommended.
Best Regards, DD
Old 24th May 2006
Gear Nut
๐ŸŽง 15 years
thank you DAN DAN..
anyone else have a suggestion?
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